Elongation (in percent) of steel plates treated with aluminum are random with probability density function f(x) = {x/250, 0 20 < x < 30 otherwise a. What proportion of steel plates have elongation greater than 25%? b. Find the mean elongation. c. Find the cumulative distribution function of the elongation. d. Find the median elongation

The solution to the problem shows us that we have that m = 21.

1/3(m - 12) = 3

We would now have to multiply all the terms on the left hand side by 1/3 and by so doing apply the distributive property and we are going to have that;

m/3 - 4 = 3

We would now have to add four to both sides so that we can have the equation balanced and we have that;

m/3 - 4 + 4 = 3 + 4

m/3 = 7

We can now multiply both sides by three as we can see to have the solution to the problem and then we are going to have that;

m/3 * 3 = 7 * 3

m = 21

Learn more about equation:https://brainly.com/question/29657983

#SPJ1

To find the work done by a force vector f = (3, 5) of 36 pounds in moving an object 10 feet from (0, 0) to (10, 0), we can use the formula for work done: work = force dot product displacement.

The dot product of two vectors is given by the sum of the products of their corresponding components. In this case, we have the force vector f = (3, 5) and the displacement vector d = (10, 0).

The dot product of f and d is calculated as follows: f · d = (3 * 10) + (5 * 0) = 30.

The work done by the force f is given by the formula: work = force dot product displacement.

Since the magnitude of the force is given as 36 pounds, the work done can be calculated as: work = 36 * (f · d) = 36 * 30 = 1080 foot-pounds.

Therefore, the work done by the force f of 36 pounds in moving the object 10 feet from (0, 0) to (10, 0) is 1080 foot-pounds.

Learn more about  dot product here:

https://brainly.com/question/23477017

#SPJ11

Answer:

area=21 cm^2

Step-by-step explanation:

split the shape into a triangle and rectangle and count the squares to find the length of the sides

area of the rectangle=3×5

area of rectangle=15

area of triangle= 4×3

area of triangle=12

area of triangle=12÷2

area of triangle=6

area of shape=15+6

area of shape=21

The area of the parallelogram in terms of a, b, and c (the length of the diagonal) is:

(1/2) * (a * b * ✓(1 - ((a² + b² - c²) / (2ab)²

Using the formula Area = (1/2) * (a * b * sinθ)

In the case of a parallelogram, the opposite sides are parallel and equal in length. Therefore, the angle θ can be found using the Law of Cosines. The Law of Cosines states:

c² = a² + b² - 2ab * cosθ

Rearranging the equation, we get:

cosθ = (a² + b² - c²) / (2ab)

Area = (1/2) * (a * b * sinθ)

= (1/2) * (a * b * ✓(1 - cos²θ))

= (1/2) * (a * b * ✓(1 - ((a² + b² - c²) / (2ab))²))

= (1/2) * (a * b * ✓(1 - ((a² + b² - c²) / (2ab)

Learn more about area on

https://brainly.com/question/25292087

#SPJ1

The statement given is false. The reason for this is that the convergence of a function does not necessarily imply anything about the value of its derivative. To disprove the statement, we can consider the function f(x) = x^2, which converges for all x, but its third derivative f'''(x) = 0, which means that f'''(0) is also equal to 0. Hence, f′′′(0) is not equal to 2.

In general, it is important to note that the convergence of a function does not provide any information about the behavior of its derivatives. Moreover, a function may converge at some points and diverge at others, and this can be determined by analyzing the behavior of its terms or by using convergence tests. In this case, it is necessary to compute f′′′(0) directly using the definition of the derivative or by applying differentiation rules.

To know more about statement visit:

https://brainly.com/question/32267897

#SPJ11

The mean weight loss of people on this drug, population mean, could be as low as 29 lbs  and if the study is repeated, the sample size should be at least 48 to achieve a margin of error less than 2 lbs.

(a) According to the information provided, the mean weight loss of people on this drug, population mean, could be as low as 29 lbs. This is calculated by subtracting the margin of error (±4 lbs) from the average weight loss (33 lbs): 33 - 4 = 29 lbs.

(b) To determine the required sample size for the study to be repeated with a margin of error less than 2 lbs, we can use the following formula for the margin of error (ME) with a known standard deviation (SD) and a confidence level (CL) of 95%:

ME = (1.96 * SD) / sqrt(n)

Here, ME = 2, SD = 7, and n is the sample size we need to find. Rearranging the formula to solve for n:

[tex]n = (1.96 * 7 / 2)^2\\n = (13.72 / 2)^2\\n = 6.86^2[/tex]
n ≈ 47.1

Since we can't have a fraction of a sample, we round up to the nearest whole number. Therefore, if the study is repeated, the sample size should be at least 48 to achieve a margin of error less than 2 lbs.

To know more about margin of error refer here:

https://brainly.com/question/29419047

#SPJ11

Answer:

0.0287

Step-by-step explanation:

we first of all need to find the z-score.

z = (X - υ) / σ

where X is the test statistic, υ is the mean and is the standard deviation.

z = (150 - 190) / 21

= -1.9047....

in z-table, the value of the area for z = -1.9047 is 0.02872.

this is the area to the left (finishing race in less than 150 minutes).

so the probability is 0.02872 = 0.0287 to 4 decimal places

Answer:

We can write ⁹⁄₁₂ as a sum of smaller fractions with a common denominator.

To find the common denominator, we need to find the least common multiple (LCM) of 12 and the numerator 9, which is 36.

⁹⁄₁₂ = (⁹⁄₁₂) x (3/3) = 27/36

So ⁹⁄₁₂ can be written as the sum of smaller fractions with a common denominator of 36 as:

⁹⁄₁₂ = 27/36 = (18/36) + (9/36) = ½ + ¼

Therefore, ⁹⁄₁₂ can be expressed as the sum of the fractions ½ and ¼.

Step-by-step explanation:

Answer:

Just write anything that will = to 9/12

Step-by-step explanation:

3/12+6/12=9/12

More examples:

4/12+5/12=9/12

Please provide the coordinates of the vertices. For the second part, to find the volume of the parallelepiped formed by the vectors, we need to take the determinant of the matrix whose columns are the vectors.

So,
Volume = | [1, 2, 3], [4, 5, 6], [7, 8, 9] |
= (1*(5*9-8*6) - 2*(4*9-7*6) + 3*(4*8-7*5))
= (1*(-3) - 2*(-6) + 3*(-3))
= -3
Therefore, the volume of the parallelepiped formed by the vectors is -3. The specific coordinates of the vertices for the triangle and the vectors for the parallelepiped. Please provide this information so I can help you find the area of the triangle and the volume of the parallelepiped.

To know more about vertices visit:

https://brainly.com/question/29154919

#SPJ11

The probability distribution for the third purchase would be approximately [0.781248, 0.218752] for "special" and "b" respectively.

Based on the transition probabilities provided, we can represent the purchase patterns for the two brands of toothpaste as a Markov process. Let's denote the two brands as "special" (S) and "b" (B).

The rows represent the current state, and the columns represent the next state. The entry at row i and column j represents the probability of transitioning from state i to state j.

For example, according to the transition matrix:

The probability of transitioning from "special" (S) to "special" (S) is 0.92.

The probability of transitioning from "special" (S) to "b" (B) is 0.08.

The probability of transitioning from "b" (B) to "special" (S) is 0.04.

The probability of transitioning from "b" (B) to "b" (B) is 0.96.

Using this transition matrix, we can analyze the purchase patterns over time. For example, if we start with a customer purchasing the "special" brand, the probability distribution for the next purchase would be [0.92, 0.08] for "special" and "b" respectively. If we continue this process, we can calculate the probabilities for multiple purchases in the future.

Certainly! Let's continue analyzing the purchase patterns using the given transition probabilities.

Let's consider the initial state where a customer purchases the "special" brand of toothpaste. We can calculate the probabilities for the next purchase after several time steps.

Time step 1:

If the customer purchased "special" toothpaste initially, the probability distribution for the next purchase would be [0.92, 0.08] for "special" and "b" respectively.

Time step 2:

To calculate the probabilities for the second purchase, we multiply the previous probability distribution by the transition matrix:

Hence, the probability distribution for the second purchase would be approximately [0.8464, 0.1536] for "special" and "b" respectively.

To learn more about probability follow the given link:

https://brainly.com/question/13604758

#SPJ4

The length of the arc BC of the circle with area = 121π units² is BC = 21.50 units

Given data ,

Let the area of the circle be A = 121π units²

Let the length of the arc be represented as BC

where The formula for central angle is given as;

Central Angle = ( s x 360° ) / 2πr

r = 11 units

On simplifying , we get

112 = ( s / 360 ) / 22π

On solving for s

The arc length s = BC = ( 0.3111 ) x 22π

BC = 21.50 units

Hence , the length of the arc is s = 21.50 units

To learn more about central angle click :

https://brainly.com/question/11877137

#SPJ1

Each segment length in right triangle ABC include the following:

Segment BD = 9 units.

Segment AB = 9√2 units.

Based on Pythagorean theorem, the length of sides of a right-angled triangle are always in the ratio 1 : 1 : √2, which can be rewritten as follows;

x : x: x√2.

Where:

x represent the length of sides (one leg) of a right-angled triangle.

From this 45-45-90 triangle, we can determine the length of one leg of the triangle as follows:

x = BD = AD

BD = 9 units.

By using Pythagorean's theorem, the length of segment AB can be determined as follows;

AB² = BD² + AD²

AB² = 9² + 9²

AB² = 81 + 81

AB = √162

AB = 9√2 units.

Read more on triangle here: https://brainly.com/question/3227590

#SPJ1

a.2.5 The probability of 3 cabs passing by 6:30 p.m. can be calculated using the Poisson distribution. b. The expected number of cabs passing by 6:10 p.m. is found by multiplying the mean rate by the duration. c. The probability of waiting more than 10 minutes for a cab can be obtained using the CDF of the exponential distribution.

a. The probability of 3 cabs passing by 6:30 p.m. can be calculated using the Poisson distribution. b. The expected number of cabs passing by 6:10 p.m. is found by multiplying the mean rate by the duration. c. The probability of waiting more than 10 minutes for a cab can be obtained using the CDF of the exponential distribution.a. The probability that 3 cabs pass by 6:30 p.m. can be calculated using the Poisson distribution. The mean number of cabs per hour is given as 5. From 6:00 p.m. to 6:30 p.m., the duration is 30 minutes, which is half an hour. The expected number of cabs passing by during this time period can be calculated as the product of the mean rate and the duration, i.e., 5 * 0.5 = 2.5. Using the Poisson distribution formula, we can find the probability of observing exactly 3 cabs during this time period.

b. The expected number of cabs that pass by 6:10 p.m. can be calculated using the same approach. The duration from 6:00 p.m. to 6:10 p.m. is 10 minutes, which is 1/6th of an hour. Multiplying the mean rate of 5 cabs per hour by the duration, we get the expected number of cabs passing by during this time period as 5 * (1/6) = 5/6.

c. To calculate the probability of waiting more than 10 minutes for a cab, we need to consider the inter-arrival time of the cabs. The inter-arrival time follows an exponential distribution, which is the reciprocal of the Poisson distribution. In this case, the mean inter-arrival time is 1/5 of an hour (since the mean rate is 5 cabs per hour). We can use the cumulative distribution function (CDF) of the exponential distribution to find the probability of waiting more than 10 minutes, which is equivalent to waiting more than 1/6th of an hour. The CDF of the exponential distribution can be evaluated to obtain the desired probability.

Learn more about Poisson distribution here: https://brainly.com/question/30388228

#SPJ11

The auditory canal would resonate at approximately 7154.17 Hz and 14304.35 Hz for the first two harmonics. The corresponding sound wavelengths would be approximately 0.048 m and 0.024 m for the fundamental frequency and second harmonic, respectively.

To determine the resonant frequencies of the auditory canal in its first two harmonics, we can use the formula for the resonant frequencies of a closed-end cylindrical tube:

f = (n * c) / (2L)

Where:

f = resonant frequency

n = harmonic number (1 for the fundamental frequency, 2 for the second harmonic, and so on)

c = speed of sound in air (approximately 343 m/s at room temperature)

L = length of the auditory canal (2.4 cm = 0.024 m)

A. Resonant frequencies in the first two harmonics:

For the fundamental frequency (n = 1):

f₁ = (1 * 343) / (2 * 0.024) ≈ 7154.17 Hz

For the second harmonic (n = 2):

f₂ = (2 * 343) / (2 * 0.024) ≈ 14304.35 Hz

B. Corresponding sound wavelengths in part A:

The wavelength of a sound wave can be determined using the formula:

λ = c / f

For the fundamental frequency (n = 1):

λ₁ = 343 / 7154.17 ≈ 0.048 m (or 4.8 cm)

For the second harmonic (n = 2):

λ₂ = 343 / 14304.35 ≈ 0.024 m (or 2.4 cm)

Therefore, the auditory canal would resonate at approximately 7154.17 Hz and 14304.35 Hz for the first two harmonics. The corresponding sound wavelengths would be approximately 0.048 m and 0.024 m for the fundamental frequency and second harmonic, respectively.

Learn more about second here:

https://brainly.com/question/25336638

#SPJ11

The density function of the random variable Y = 1/X-1, where X is a continuous random variable with the density function f(x) = (2x - 20) for x ≥ 2, can be determined as follows:

To find the density function of Y, we need to use the transformation technique and apply the formula for transforming random variables.

Determine the range of Y:

Since X ≥ 2, we have X - 1 ≥ 1. Therefore, the range of Y is 1 ≤ Y < ∞.

Find the inverse function of Y:

To find the inverse function of Y = 1/X-1, we can rearrange the equation as X = 1/(Y+1).

Calculate the derivative of the inverse function:

We differentiate the inverse function X = 1/(Y+1) with respect to Y:

dX/dY = -1/(Y+1)²

Substitute the density function of X into the derivative:

Substituting the density function f(x) = (2x - 20) into dX/dY = -1/(Y+1)², we have:

dX/dY = -1/(Y+1)² = (2x - 20)

Solve for the density function of Y:

To solve for the density function of Y, we need to express fY(y) in terms of y. We can use the relationship between X and Y: X = 1/(Y+1).

Substituting X = 1/(Y+1) into dX/dY = (2x - 20), we get:

-1/(Y+1)² = (2/(Y+1)) - 20

Simplifying the equation, we have:-1 = 2(Y+1) - 20(Y+1)²

Expanding and rearranging the terms, we get:

-1 = 2Y + 2 - 20(Y² + 2Y + 1)

Simplifying further:

-1 = 2Y + 2 - 20Y² - 40Y - 20

Rearranging the equation:

20Y² + 38Y - 23 = 0

Solving this quadratic equation, we find the values of Y.

Once we have the values of Y, we can determine the density function fY(y) by substituting them into the equation derived from the transformation.

For more questions like Variable click the link below:

https://brainly.com/question/17344045

#SPJ11

The number of customers (n) must be between 0 and 100 (inclusive) to be within the valid domain of the function.

In this context, the domain of the function h(n) represents the valid values for the number of customers (n) that can attend the theater on Thursday nights.

Given that the theater holds 100 customers at capacity, the domain would be limited to values of n that fall within the capacity of the theater, which is from 0 to 100. This is because the theater cannot accommodate more than 100 customers, and it is not possible to have a negative number of customers.

Therefore, the domain of the function h(n) in this context would be:

Domain: 0 ≤ n ≤ 100

It means that the number of customers (n) must be between 0 and 100 (inclusive) to be within the valid domain of the function.

Learn more  about function here:

https://brainly.com/question/30721594

#SPJ11

Figure 14-4 illustrates a situation where the price of a good or service increases from P2 to P3. As a result, the quantity supplied by the firm also rises from Q2 to Q3.

When the price of a good or service rises from P2 to P3, the firm realizes that the new price level offers higher profitability.

This encourages the firm to increase its quantity supplied from Q2 to Q3. The rationale behind this response lies in the profit motive of the firm. As the price increases, the firm anticipates higher revenue per unit sold.

Consequently, the firm sees an opportunity to generate more profits by supplying a greater quantity of the product at the new price.

This adjustment in quantity supplied reflects the firm's strategic decision to capitalize on the increased profitability associated with the higher price level, thereby maximizing its financial gains.

Learn more about Quantity supplied click here :brainly.com/question/28072862

#SPJ11

To proceed with this analysis, we assume that the individuals in the sample were randomly selected and that the samples are independent.

Additionally, the sample sizes are large enough to apply the normal approximation to the sampling distribution of the difference in proportions.Using these assumptions, we can calculate the confidence in is 37/77 ≈ 0.481. The proportion of men who follow a regular exercise program is 44/85 ≈ 0.518. The difference between these proportions is 0.518 - 0.481 ≈ 0.037.

The 95% confidence interval for the difference in proportions can be calculated using the formula: difference ± (critical value) * sqrt[(p1 * (1 - p1) / n1) + (p2 * (1 - p2) / n2)] where p1 and p2 are the proportions of women and men, n1 and n2 are the respective sample sizes, and the critical value corresponds to a 95% confidence level. Performing the calculations, the 95% confidence interval for the difference in proportions is approximately 0.037 ± 0.129, which gives us a range from -0.092 to 0.166.

Interpreting this interval, we can say that with 95% confidence, the true difference between the proportions of women and men who follow a regular exercise program lies within the range of -0.092 to 0.166. This means that there is insufficient evidence to conclude that there is a significant difference in the proportions of women and men who follow a regular exercise program. The interval includes zero, indicating that the difference could be negligible or non-existent.

To learn more about interval click here:

brainly.com/question/17212516

#SPJ11

The correct steps used to prove the formula ∑nj= 1(aj− aj−1)= an− a0∑j⁢= 1n(aj⁢− aj⁢−1)⁢= an⁢− a0, where {an} is a sequence of real numbers, are as follows:

1: The explicit form of the summation is ∑nj= 1(aj− aj− 1) = a1− a0+ a2− a1+ a3− a2+ ...+ an− an− 1

3: Simplifying, we get –a0 + (a1 – a1) + (a2 – a2) + .....+ (an – 1 – an – 1) + an = an – a0

Therefore, the correct steps are 1 and 3.

To know more about real numbers refer hear

https://brainly.com/question/31715634#
#SPJ11

The volume of the prism is 11,968 cubic inches.

The formula for the volume of a rectangular prism is:

Volume = Base Area x Height

So, Base Area = Length x Width

Base Area = 34 in x 22 in

Base Area = 748 in²

Now, Volume = Base Area x Height

Volume = 748 x 16 in

Volume = 11,968 in³

Therefore, the volume of the prism is 11,968 cubic inches.

Learn more about Volume here:

https://brainly.com/question/28058531

#SPJ1

The given code snippet demonstrates the usage of a stack data structure. After performing a series of push and pop operations on the stack, the value of the variable "value" is printed using the cout statement.

In line 1, the value 11 is pushed onto the stack using the push() function. Then, in line 2, the value 5 is pushed onto the stack. Next, in line 3, the value 12 is pushed onto the stack.

In line 4, the pop() function is used to remove the top element from the stack, and its value is stored in the variable "value". Thus, after line 4, the value of "value" would be 12.

In line 5, the value 3 is pushed onto the stack. Then, in line 6, another pop() operation is performed, and the top element (which is 3) is removed from the stack and stored in the variable "value".

Finally, in line 7, the value of "value" is printed using the cout statement, and it would output 3.

Overall, the code snippet demonstrates a sequence of push and pop operations on a stack, and the final output is the value of the top element after the second pop operation, which is 3.

To learn more about stack data structure click here:

brainly.com/question/19585076

#SPJ11

Step-by-step explanation:

There is no defined formula for the area of an irregular pentagon. The area of an irregular pentagon can be calculated by dividing the pentagon into other smaller polygons. Then, the area of these polygons is calculated and added together to get the area of the pentagon.

If solid hemisphere has a diameter of 6 centimeters then the  area of the top view is 9π  cm²

To find the area of the top view of a solid hemisphere, we need to consider that the top view will be a circle with a diameter equal to the diameter of the hemisphere.

Given that the diameter of the hemisphere is 6 centimeters, the radius will be half of the diameter, which is 3 centimeters.

The area of a circle can be calculated using the formula:

Area = π × radius²

Substituting the radius value, we have:

Area = π × 3²

= π × 9

=9π  cm²

To learn more on Three dimensional figure click:

https://brainly.com/question/2400003

#SPJ1

to equal y positions

first you need to equal the equalities that defines y positions

therefore:

[tex] \frac{ x}{2} + 2 = x + 1[/tex]

this means x = 2 if y positions are equal

so y = 3

(2,3)

you can easily find it by just looking at the graph

To find the maximum vertical distance between the graphs y=2+3sinx and y=4cosx−3, we need to find the points where the graphs are farthest apart from each other. This will occur when the difference between the y-coordinates of the two graphs is the greatest.

Let's start by finding the y-coordinates of each graph. For y=2+3sinx, the maximum value occurs when sinx=1, which is at x=π/2 + 2kπ for integer values of k. So the maximum y-value is 2+3=5. For y=4cosx−3, the minimum value occurs when cosx=−1, which is at x=π + 2kπ for integer values of k. So the minimum y-value is 4(−1)−3=−7.

The maximum vertical distance between the two graphs is the absolute value of the difference between these two y-values, which is |5−(−7)|=12. Therefore, the maximum vertical distance between the graphs is 12.

To know more about maximum vertical distance visit:

https://brainly.com/question/3860752

#SPJ11

The law that shows the logical equivalence of the two propositions ¬((w∨p)∧(¬q∧q∧w)) and ¬(w∨p)∨¬(¬q∧q∧w) is DeMorgan's law. The correct answer is A.

DeMorgan's law states that the negation of a conjunction (AND) is logically equivalent to the disjunction (OR) of the negations of the individual statements. It can be expressed as ¬(A∧B) ≡ ¬A∨¬B.

Applying DeMorgan's law to the given propositions, we have:

¬((w∨p)∧(¬q∧q∧w)) ≡ ¬(w∨p)∨¬(¬q∧q∧w).

By negating the conjunction and distributing the negations, the logical equivalence is maintained. Therefore, the correct choice is:

(a) DeMorgan's law.

Therefore, DeMorgan's law is a fundamental principle in logic that allows us to manipulate and simplify logical expressions by transforming between conjunctions and disjunctions with negations.

To learn more about DeMorgan's law from the given link

https://brainly.com/question/28735989

#SPJ4

Magnification of a convex mirror is 0.67 times for objects 3.8 m from the mirror .the focal length is negative, this means that the mirror is a diverging mirror (convex mirror). Therefore, the focal length of this mirror is 2.4 meters.

To find the focal length of a convex mirror, we can use the mirror formula:

1/f = 1/v + 1/u

where f is the focal length, v is the image distance, and u is the object distance.

In this case, we know that the magnification (M) of the mirror is 0.67, and the object distance (u) is 3.8 m. We also know that for a convex mirror, the image is always virtual and upright, so the image distance (v) is negative.

The magnification formula is:

M = -v/u

Substituting the values we have:

0.67 = -v/3.8

v = -2.546 m

Now we can use the mirror formula to find the focal length:

1/f = 1/-2.546 + 1/3.8

1/f = -0.416

f = -2.4 m

Since the focal length is negative, this means that the mirror is a diverging mirror (convex mirror). Therefore, the focal length of this mirror is 2.4 meters.

To know more about Magnification visit :

https://brainly.com/question/20368024

#SPJ11

the total number of different 13-letter arrangements that can be formed using the letters in the word constellation is 389,188,800.

In the total number of different 13-letter arrangements that can be formed using the letters in the word constellation, we need to consider the number of letters and their repetitions.

c: 1 occurrence

o: 2 occurrences

n: 1 occurrence

s: 2 occurrences

t: 2 occurrences

e: 1 occurrence

l: 2 occurrences

a: 1 occurrence

i: 1 occurrence

Total number of arrangements = (Total number of letters)! / [(Number of repetitions for letter1)! × (Number of repetitions for letter 2)! × ... × (Number of repetitions for letter)!]

Substituting the values into the formula:

A total number of arrangements = 13! / [(1!) × (2!) × (1!) × (2!) × (2!) × (1!) ×(2!) × (1!) × (1!)]

A total number of arrangements = 13! / (1 × 2^4)

= 6,227,020,800 / 16

= 389,188,800

Therefore, the total number of different 13-letter arrangements that can be formed using the letters in the word constellation is 389,188,800.

To know more about arrangements click here :

https://brainly.com/question/30435320

#SPJ4

The correct answer is option A, which is 305.0 cm. A significant digit is any digit that contributes to the precision of a measurement. In this case, the digit 3, 0, and 5 are significant because they indicate the actual measurement.

The decimal point also plays a significant role in determining the number of significant digits. Therefore, in option A, the digit 0 after the decimal point is also significant. Option B has four significant digits because of the digit 8 after the third decimal place. Option C has only two significant digits because the digit 0 before the decimal point is not significant. Option D is written in scientific notation and has four significant digits as well. So, to summarize, option A has three significant digits as it has 305.0, which is a significant measurement with three digits.

To know more about Significant visit:

https://brainly.com/question/2005359

#SPJ11