Answers
Answer:
c
Step-by-step explanation:
Related Questions
13. Making an argument. Your friend claims that a line always represents a function. Is your friend
correct? Explain your reasoning
Answers
Based on the given argument, it is concluded that my friend's reasoning was incorrect.
What is a Linear Function?This refers to the type of function that represents one line on a linear plane in cartesian mathematics.
With this in mind and from the claim of my friend that a line always represents a function, my friend is incorrect because If the line was vertical, then it could not pass through and as such, cannot represent a function.
Therefore, the answer to the question is that my friend is incorrect in his claim about lines and functions.
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Please help me with this question
Answers
Notice from the graph that data are mostly to the right.
Answer: Option C The distribution is tailed.
The length of a ruler is 12 inches. There are approximately 25.4 millimeters in 1 inch.
Answers
The length of the ruler is approximately 304.8 millimeters .
Length is used to measure distance.
According to the International System of Quantities, length has the dimension of distance. In most measurement systems, length is represented by a base unit from which all other units are derived. The International System of Units (SI) system's fundamental unit of length is the metre.The longest dimension of an object is typically understood to be what is meant by length.However, this isn't always the case depending on the object's position.The length of a fixed object is referred to by a number of names, including height, also referred to as vertical length or vertical extension, and width, breadth, or depth.Given that there are approximately 25.4 millimeters in 1 inch.
Therefore the length of the ruler = 25.4 × 12 = 304.8 mm
Hence the length of the ruler is approximately 304.8 millimeters .
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Answer:
304.8
Step-by-step explanation:
12*25.4 = 304.8
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=
O DECIMALS, PROPORTIONS, PERCENTS
Simplifying a ratio of whole numbers: Problem type 1
Write the ratio as a fraction in simplest form, with whole numbers in the numerator and denominator.
40 L: 72 L
Answers
Answer:
5/9
Step-by-step explanation:
You want the reduced fraction equivalent to the ratio 40L : 72L.
Reduced ratioA ratio is reduced by removing the greatest common factor from all parts of the ratio. Here, that factor is 8L.
40L : 72L = (8L)(5) : (8L)(9) = 5 : 9 = 5/9
The ratio is 5/9.
__
Additional comment
The greatest common factor can be found several ways. The easiest is for you to make use of your knowledge of multiplication tables:
40 = 5·8
72 = 9·8
8 is a common factor. Since 5 and 9 have no common factors, 8 is the greatest common factor of 40 and 72.
Simplify the fraction 112 144 as much as possible.
Answers
Answer:
7/9
Step-by-step explanation:
Answer:
7/9
Step-by-step explanation:
I took the quiz
someone help please, dk what to do
Answers
Step-by-step explanation:
equation format: y = mx + b where m is slope and b is the y intercept.
From the points given we find that it is a horizontal line, which means slope or m = 0. So we know so far:
y = 0x + b or y = b
The y-intercept occurs where x = 0. This occurs at y = -7. So the equation for these two points:
EQUATION: y = -7
(Plotted graph attached)
Solve similar triangles (advanced) khan academy. solve for x
Answers
Answer:
that would be X=22, i had the same thing today, and got it right :D
Step-by-step explanation:
A zookeeper is 6 14 feet tall. A young giraffe in his care is 93/8 feet tall. How many times as tall as the zookeeper is the giraffe?
Answers
I need the answer ASAP
Answers
In order to rationalize the denominator of the fraction, we need to multiply the fraction by the conjugate of the expression in the denominator.
The conjugate is the same expression but with the signal between the numbers changed.
So we have:
[tex]\frac{4}{3+\sqrt[]{7}}=\frac{4}{3+\sqrt[]{7}}\cdot\frac{3-\sqrt[]{7}}{3-\sqrt[]{7}}=\frac{4(3-\sqrt[]{7})}{3^2-(\sqrt[]{7})^2}=\frac{12-4\sqrt[]{7}}{9-7}=\frac{12-4\sqrt[]{7}}{2}[/tex]So the new denominator of the fraction is 2, therefore the correct option is D.
X+4y=10 and 3x-y=-9 find the value of x/y
Answers
[tex]x = 10 - 4y.....(3)[/tex]
I WILL SOVE BY SUBSTITUTION.
[tex]3(10 - 4y) - y = - 9 \\ 30 - 12y - y = - 9 \\ - 13y = -9 - 30 \\ - 13y = - 39 \\ \frac{ - 13y}{ - 13} = \frac{ - 39}{ - 13} \\ y = 3 \\ [/tex]
[tex] x= 10 - 4(3) \\ x = 10 - 12 \\ x = - 2[/tex]
we have (-2,3)
ATTACHED IS THE SOLUTION
Which of the following equations best represents "y is inversely related to x"?
y = kx
y = kx2
y = k(1/x)
y = k(1/x2)
and i dont think it is c
Answers
The equations best represents "y is inversely related to x" is y = k(1/x).
What is an inverse proportionality?The inverse proportionality can be described as the relationship that exist between two or more quantities whereby when one of the quantities is increasing in value, then the the second quantity will be decreasing in value however there will be a proportionality constant that would be found in the equation.
Considering the chosen option D, we can see that when the value of y is increasing then the value of x will be decreasing, and when the value of x is decreasing , them the value of y will be increasing.
Therefore, option C is correct.
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I need help with this
Answers
Answer:
[tex]\text{ 78 miles per hour}[/tex]Step-by-step explanation:
Given the linear function for the traffic fines:
[tex]f(s)=14(s-60)+40[/tex]If a fine comes to $292, substitute f(s)=292 and solve for "s" to find the speed of the person:
[tex]\begin{gathered} 292=14(s-60)+40 \\ 292=14s-840+40 \\ 14s=292+840-40 \\ 14s=1092 \\ s=\frac{1092}{14} \\ s=78\text{ miles per hour} \end{gathered}[/tex]convert 0.43 to a percent
Answers
Answer:
43%
Step-by-step explanation:
To convert a decimal to a percent, you have to move the decimal over 2 times to the right.
The length of a rectangle is 3 cm less than twice the width of the rectangle. If the perimeter is 75 cm, what are the dimensions of the rectangle?
Answers
If the length of a rectangle is 3 cm less than twice the width of the rectangle and the perimeter is 75 cm, then the length is 24 cm and width is 13.5 cm
Consider the width of the rectangle as w
The length of a rectangle is 3 cm less than twice the width of the rectangle
The length of the rectangle = 2w-3
Perimeter of the rectangle = 75 cm
Perimeter of the rectangle =2(l+w)
Where l is the length and w is the width of the rectangle
Substitute the values in the equation
2(2w-3+w) = 75
2(3w-3) = 75
6w-6 = 75
6w = 81
w = 13.5 cm
The length of the rectangle = 2(13.5)-3
=24 cm
Hence, If the length of a rectangle is 3 cm less than twice the width of the rectangle and the perimeter is 75 cm, then the length is 24 cm and width is 13.5 cm
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Use the square root property to solve the equation.(x + 8)² = 2Select one:O A. (-8+√√2)OB. √2-√√8O C. (√2+8,-√2+8}O D. (-8± √2)
Answers
Answer: D
Write an equation in standard form for the line that passes through the given points.
(5,0) and (0,3)
The equation of the line in standard form is
(Type your answer in standard form.)
Answers
3x + 5y = 15 is the equation of the line in standard form that passes through the point (5,0) and (0,3).
What is the equation of line that passes through the given points?The formula for equation of line is expressed as;
y = mx + b
Where m is the slope and b is the y-intercept.
Given the data in the question;
Point 1 ( 5,0 )
x₁ = 5y₁ = 0Point 2 ( 0,3 )
x₂ = 0y₂ = 3First, we determine the slope of the line.
Slope m = ( y₂ - y₁ )/( x₂ - x₁ )
Slope m = ( 3 - 0 )/( 0 - 5 )
Slope m = ( 3 )/( -5 )
Slope m = -3/5
Now, we plug the slope and coordinates of one the point into the equation of line to determine the y-intercept b.
y = mx + b
0 = (-3/5)5 + b
Solve for b
0 = -15/5 + b
0 = -3 + b
b = 3
Now that the values of slope m and y-intercept b is known, plug these into y = mx + b to determine the equation of the line.
y = mx + b
y = (-3/5)x + 3
Convert to standard form; Ax + Bx = C
Multiply each term by 5
y = (-3/5)x + 3
5y = 5(-3/5)x + 5(3)
5y = -3x + 15
Reorder the equation
3x + 5y = 15
Therefore, the equation of the line is in standard form is 3x + 5y = 15.
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18 is 50% of what????????
Answers
Let the unknown value be x.
18 is 50% of ________n can also be written as;
18 = 50% of x
of means multiplication;
18 = 50% * x
18 = 50/100 * x
18 = 50x/100
cross multiply
18 * 100 = 50x
1800 = 50x
Divide both sides by 50
1800/50 = 50x/50
180/5 = x
x = 180/5
x = 36
Hence 18 is 50% of 36
Please answer question 5 and 6.
5.Given the functions f(x)=-2x + 4 and g(x) = 2x- 8, find the value of x for which f(x) = g(x).
6.Graph the function
Answers
The definition of the functions implies that the value of x if f(x) = g(x) is 3
The solution for the value of xThe equations of the functions are given as
f(x) = -2x + 4
g(x) = 2x - 8
This means that, we have the following equation
f(x) = g(x)
Substitute the known values in the above equation
So, we have the following equation
-2x + 4 = 2x - 8
Collect the like terms in the above equation
So, we have
2x + 2x = 8 + 4
Evaluate the like terms in the above equation
So, we have
4x = 12
Divide both sides by 4
x = 3
Hence, the value of x such that the equations are equal is 3
The graph of the functionsThe graph of the functions can be plotted using a graphing tool
See attachment for the graph of the functions
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A pedestrian signal at a crosswalk has the following cycle: "WALK” for 45 seconds, "DON'TSTART" for 30 seconds and "DONT WALK" for 40 seconds. What is the probability the signalwill show "DON'T START" if you arrive at a random time? Write your answer as a percentagerounded to the nearest tenth if necessary.
Answers
Answer:
Step-by-step explanation:
The probability is represented by the following equation:
[tex]undefined[/tex]Determine whether the mean, median, or mode would be the best choice to describe the center of the following set of data.
An elementary school has 92 first graders. Because the first graders are all about the same age, they have heights that are pretty similar to one another.
Would it be best to use the mean, median, or mode to describe the height of the first-graders?
Group of answer choices
Mean
Median
Mo
Answers
First graders in an elementary school number 92. We use mode.
Given that,
Determine which statistic would be most appropriate to characterize the middle of the next set of data: the mean, median, or mode.
First graders in an elementary school number 92. The first graders' heights are fairly similar to one another because they are all roughly the same age.
We have to find which statistic—the mean, median, or mode—does the first-graders' height best represent.
First graders in an elementary school number 92.
Depending on which their birthday walls, the first graders might be six, seven and eight on the last day of the second year.
Therefore, We use mode.
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Where do you find a vertical shift in the exponential parent function?
What happens when (x-4) is in the exponent?
What happens when (x+9) is in the exponent?
Where do you find a horizontal shift in the exponential parent function?
What happens when there is a +7 at the end of the exponential parent function?
What happens when there is a -6 at the end of the exponential parent function?
Answers
For the given expressions we will have:
y = exp(x - 4) →we have a shift of 4 units to the right.
y = exp (x +9) → we have a shift of 9 units to the left.
y = exp(x) + 7 → we have a shift of 7 units up.
y = exp(x) - 6 → we have a shift of 6 units down.
How to work with vertical and horizontal shifts?
Remember that the shifts work as follows.
For a function f(x), we define a vertical shift of N units as:
g(x) = f(x) + N
If N > 0, the shift is upwards.If N < 0, the shift is downwards.For a function f(x), we define a horizontal shift of N units as:
g(x) = f(x + N)
If N > 0, the shift is to the left.If N < 0, the shift is to the right.Then, if we have:
exp(x - 4) we have a shift of 4 units to the right.
exp (x +9) we have a shift of 9 units to the left.
exp(x) + 7 we have a shift of 7 units up.
exp(x) - 6 we have a shift of 6 units down.
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In a standard normal distribution, the range of values of z is from _____.
Answers
In a standard normal distribution, the range of values of z is from: D. d. -∞ to ∞.
What is a z-score?A z-score is also known as a standard score and it can be defined as a measure of the distance between a raw score and the mean, when standard deviation units are used.
What is a normal distribution?A normal distribution is also referred to as the Gaussian distribution and it can be defined as a probability distribution that is continuous and symmetrical on both sides of the mean, which shows that all data near the mean have a higher frequency than the data that are far from the mean.
In conclusion, the range of values of z in a standard normal distribution are all real numbers which typically ranges from negative infinity (-∞) to positive infinity (∞).
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Complete Question:
In a standard normal distribution, the range of values of z is from ______.
a. -3.09 to 3.09
b. -1 to 1
c. 0 to 1
d. -∞ to ∞
The proof is converted to paragraph form.
Which parts of the paragraph proof are incorrect?
Answers
The part "since ∠ AMC is a right angle, ∠BMC and ∠CMD will be complementary" and "since ∠ BMC is a right angle, ∠BMC and ∠AMB will be complementary" , the paragraph proof is incorrect.
We are given that,
∠ AMC and ∠BMC are right angles.
Since,
∠ AMC = ∠ AMB + ∠ BMC
The paragraph part should have been ∠ AMB and ∠ BMC are complementary angles and,
Since,
∠ BMD = ∠ BMC + ∠ CMD
The paragraph part should have been ∠ CMD and ∠ BMC are complementary angles instead of the part given in the paragraph proof.
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Shauna calculated the net sales for her company using the following figures: Gross sales = $72,900 Sales discounts = $2,450 Purchase returns and allowances = $3,750 Sales returns and allowances = $2,550 The net sales of Shauna's company are __________.
Answers
The net sales of Shauna's company when she calculated the sales for her company using the figures is $66700.
What are net sales?The total of a company's net sales is its gross sales less any returns, allowances, and discounts. Externally, net sales calculations are not always obvious. They can frequently be taken into account when calculating top-line revenues that are shown on the income statement.
The total number of units sold is multiplied by the price per unit for the purpose of calculating gross sales. The term "returns" or "sales returns" refers to products that customers have sent back in exchange for reimbursement.
The nets sales based on the information given will be:
Gross sales = $72900
Less: Retuned sales = $3750
Less Discount = $2450
Net sales = $66700
Therefore, the net sale is $66700.
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3.5 divided by 85
answers:
at least 500/ at least 50/ at least 20/ at least 200
Ive looked up answers to this question in iready but everyone says the answer is 24?
Answers
The value of 3.5 divided by 85 will be 0.4118.
What is division?Division is one of the four basic arithmetic operations, or the process by which two numbers are added together to produce a new number. Multiplication, addition, and subtraction make up the remaining operations.
Division's opposite is multiplication. Dividend Divisor = Quotient + Remainder is a formula for calculating the division of two numbers.
The dividend in this situation refers to the number that is being divided. The divisor is the number that divides the number (dividend) into equal parts.
In this case, 3.5 ÷ 85 = 0.4118. This can be computed through the use of a calculator.
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Which of the following ordered pairs is either the
x- or y-intercept of the function 3x + 2y = -6?
A. (-3,0)
B.(-2,0)
C.(0,2)
D.(0,3)
Answers
Volume is 10x3 + 67x2 + 30x − 72, length is 5x − 4, width is 2x + 3
Answers
Answer:
height = x + 6
Step-by-step explanation:
Volume = length x width x height
V = 10x³ + 67x² + 30x − 72
length = 5x - 4 and width = 2x + 3
So length x width = (5x - 4 ) x (2x + 3)
Using the FOIL method:
= (5x)(2x) + (5x)(3) + (-4)(2x) + (-4)(3)
= 10x² + 15x - 8x - 12
= 10x² + 7x -12
So to find height, divide Volume by (length x width)
10x³ + 67x² + 30x − 72 ÷ 10x² + 7x -12
Use polynomial long division. See image ( I did the best I could to capture the process)
The answer is x + 6
To verify
Multiply (5x-4) (2x + 3) (x + 6) = 10x³ + 67x² + 30x − 72
In a recent year, there were 29,757 traffic fatalities in the United States. Of these, 9001 were alcohol related.
(a) What is the probability that a bandomly selected traffic fatality in this year was alcohol related?
(b) What is the probability that a randomly selected traffic fatality in this year was not alcohol related?
(c) What is the probability that two randomly selected traffic fatalities in this year were both alcohol related?
(d) What is the probability that neither of two randomly selected traffic fatalities in this year were alcohol related?
(e) What is the probability that of two randomly selected traffic fatalities in this year, at least one was alcohol related?
Answers
we have found out the probability for different cases when there were 29,757 traffic fatalities in the United States and of these, 9001 were alcohol related.
Total traffic fatalities = 29,757
Alcohol related = 9001
(a) probability that a randomly selected traffic fatality in this year was alcohol related:
P = 9001 / 29,757 = 0.302
(b) probability that a randomly selected traffic fatality in this year was not alcohol related:
P = 1 - 0.302 = 0.698
(c) probability that two randomly selected traffic fatalities in this year were both alcohol related:
P = 0.302 × (9000 / 29756)
P = 0.091
(d)What is the probability that neither of two randomly selected traffic fatalities in this year were alcohol related:
P = 1 - 0.091
P = 0.909
(e) probability that of two randomly selected traffic fatalities in this year, at least one was alcohol related
P = 0.302 + 0.302 = 0.604
Therefore, we have found out the probability for different cases when there were 29,757 traffic fatalities in the United States and of these, 9001 were alcohol related.
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Find the measure of arc indicated using the inscribed angle given in thecircle below.X91 0YZ?
Answers
SOLUTION
The correct option is A (the first option)
We are asked to find the measure of the angle at the center.
Circle theorem:
The angle at the center of a circle = 2 x Angle at the circumference
The angle at the center of the circle = 2 x = 2 x 91 degrees
=182 degrees
The value for the angle at the center (?) of this circle is
[tex]182^o[/tex]The correct option is A (the first option)
The sum of a number and 4
Answers
The solution for x in the equation x + 4 = 12 is 8.
Given,
Sum of two numbers is 12
Take the first number as x
Second number is given as 4
We have to find the value of x.
The equation will be like:
x + 4 = 12
Solve for x in the equation.
Add -4 to both sides
x + 4 - 4 = 12 - 4
x = 8
That is, the solution for x in the equation x + 4 = 12 is 8.
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The question is incomplete. Completed question is given below.
The sum of a number and 4 is 12. Find the number.