Answer:
Total Ratio = 2+4
=6
Striped blankets = 2/6 × 12
= 4 Striped Blankets
Step-by-step explanation:
Can't really explain
i don't know what it means
Answer:
C. 20
8 cycles for 1 inch, times 2 is 16, + 4 is 20
HELP ASAP PLSSSSSSSSS
(image is below)
A scatter plot with a line is shown below:
Graph shows numbers from 0 to 10 at increments of 1 on the x axis and number s from 0 to 15 at increments of 1 on the y axis. Scatter plot shows ordered pairs 0, 1 and 1, 1 and 2, 3 and 3, 6 and 4, 6 and 5, 8 and 6, 9 and 7, 10 and 8, 12 and 9, 13 and 10, 15. A line joins ordered pairs 0, 0.5 and 10, 14.8.
Which statement is most likely correct about the line?
It can be a line of best fit because it is closest to most data points.
It can be a line of best fit because it passes through all the data points.
It cannot be a line of best fit because it does not pass through all the points.
It cannot be a line of best fit because it does not pass through the first and last points.
Answer:
Option 1
Step-by-step explanation:
The statement which is most likely correct about the line is :
It can be a line of best fit because it is closest to most data points.Option 124. Write a formula to estimate the amount of material required to cover Firm 3's structure, not including the floor. Explain your reasoning. (2 points: 1 for the formula, 1 for the explanation)
Formula to estimate the amount of material required to cover firm 1's structure not including the floor is; πr² + πrh
How to Generate Formulas?
From the complete question seen online,
The given parameters are;
The shape of the firm 1's structure = Cylindrical shape
The radius of the firm 1's structure = 35
Height of firm 1 structure = 60
The amount of material to cover the firm 1 structure not including the floor = The surface area of a cylinder excluding the base
The formula for the surface area of a cylinder = 2πr² + πrh
If we take away the area of the base, we have;
Surface area of a cylinder excluding the case = 2πr² + πrh - πr² = πr² + πrh
Formula to estimate the amount of material required to cover firm 1's structure not including the floor = πr² + πrh
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question 7. HELP ME WITH THIS
Reduce the expression, if possible, by cancelling the common factors.
−3 is your answer!
have a nice day! please mark brainliest :)
.
Find the volume of the cone.
Either enter an exact answer in terms of π or use 3.14 for π and round your final answer to the nearest hundredth.
Answer:
[tex]V=12\pi\:\text{units}^3[/tex]
Step-by-step explanation:
[tex]\displaystyle V=\frac{\pi r^2h}{3}\\ \\V=\frac{\pi (3)^2(4)}{3}\\\\V=\pi(3)(4)\\\\V=12\pi[/tex]
(SHOW THE SOLUTION)
Step-by-step explanation:
so, you did not pay attention to even the simplest of facts in the class ?
the radius is always half of the diameter, or (in other words), the diameter is always twice the radius.
that is really all there is to this.
please tell me you need actual help to divide something by 2 ?
you need me to be your calculator ? posting the questing and then typing the results in from here is more effort than just to use your own calculator.
1. 12.6/2 = 6.3 cm
2. 31.08/2 = 15.54 ft
3. (10 7/11)/2 = (110/11 + 7/11)/2 = 117/11 / 2 =
= 117/22 = 5 7/22 cm
(you noticed something ?)
4. sqrt(54)/2 = sqrt (54/4) = sqrt(27/2) = sqrt(13.5) =
= 3.674234614... m
5. 10.125/2 = (10 1/8)/2 = 5 1/16 = 5.0625 in
(see again under 3.)
Write an algebraic equation for the following.
A number raised to the fifth power is four less than ten times the number.
A. 5x = 10x - 4
B. x³ =4-10x
C. 5x4-10x
D. x³ = 10x-4
Answer:
a
Step-by-step explanation:
raise to five
less than
ten times
Please someone help me answer this! I will return back
Answer:
Negative correlation
Step-by-step explanation:
You can draw a line of best fit the would go downhill from left to right which would be a negative slope. This means it has a negative correlation.
Given that P(A or B) = 13, P(A)= 14, and P(A and B) = 18…. find P(B)
struggling with this could use some help + work explination, i havent been to class in weeks!
The value of P(B)=17 for the given value P(A or B) = 13, P(A)= 14, and P(A and B) = 18.
What is probability?It is defined as the ratio of the number of favourable outcomes to the total number of outcomes in other words the probability is the number that shows the happening of the event.
Here is the formula for the probability of an exclusive event:-
[tex]P(AUB)=P(A)+P(B)-P(A\cap B)[/tex]
[tex]13=14+P(B)-18[/tex]
[tex]P(B)=17[/tex]
hence the value of P(B)=17 for the given value P(A or B) = 13, P(A)= 14, and P(A and B) = 18.
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The radius of the surface of the water in the tank is increasing at a rate of 0.25m/min. at what rate is the area of the surface changing when the radius is 1.2m?
Answer:
1.88 m^2/min to the nearest hundredth.
Step-by-step explanation:
Area = π r^2
Using Calculus notation:
dA/dr = 2π r
dr/dt = 0.25 (given)
So the rate of change of area
dA/dt = dA/dr * dr/dt
So when r = 1.2
dA/dt = 2 π * 1.2 * 0.25
= 0.6π m^2/min.
= 1.88 m^2/min to the nearest hundredth.
Given that ‘z’ is in set of complex number and ‘a’ is any real numbers. Solve the trigonometric equation sin(z) = a for all general solutions.
Recall that for all [tex]z\in\Bbb C[/tex],
[tex]\sin(z) = \dfrac{e^{iz} - e^{-iz}}{2i}[/tex]
so that
[tex]\sin(z) = a \iff e^{iz} - e^{-iz} = 2ia[/tex]
Multiply both sides by [tex]e^{iz}[/tex] to get a quadratic equation,
[tex]e^{2iz} - 2iae^{iz} - 1 = 0[/tex]
Solve for [tex]e^{iz}[/tex]. By completing the square,
[tex]e^{2iz} - 2ia e^{iz} + i^2a^2 = 1 + i^2a^2[/tex]
[tex]\left(e^{iz} - ia\right)^2 = 1 - a^2[/tex]
[tex]e^{iz} - ia = \pm \sqrt{1-a^2}[/tex]
[tex]e^{iz} = ia \pm \sqrt{1-a^2}[/tex]
[tex]iz = \log\left(ia \pm \sqrt{1-a^2}\right)[/tex]
[tex]iz = \ln\left|ia \pm \sqrt{1-a^2}\right| + i \left(\arg\left(ia \pm \sqrt{1-a^2}\right) + 2\pi n\right)[/tex]
[tex]\boxed{z = -i \ln\left|ia \pm \sqrt{1-a^2}\right| + \arg\left(ia \pm \sqrt{1-a^2}\right) + 2\pi n}[/tex]
where n is any integer.
We are given with:
[tex]{\quad \qquad \longrightarrow \sin (z)={\sf a}\:,\:z\in \mathbb{C}}[/tex]
Recall the identity what we have for the sine function of complex numbers
[tex]{\boxed{\bf{\sin (z)=\dfrac{e^{\iota z}-e^{-\iota z}}{2\iota}}}}[/tex]Put the values to thus obtain:
[tex]{:\implies \quad \sf \dfrac{e^{\iota z}-e^{-\iota z}}{2\iota}=a}[/tex]
[tex]{:\implies \quad \sf e^{\iota z}-e^{-\iota z}=2a\iota}[/tex]
Multiply both sides by [tex]{\sf e^{\iota z}}[/tex]
[tex]{:\implies \quad \sf e^{\iota z}\cdot e^{\iota z}-e^{-\iota z}\cdot e^{\iota z}=2a\iota e^{\iota z}}[/tex]
[tex]{:\implies \quad \sf (e^{\iota z})^{2}-2a\iota e^{\iota z}-1=0}[/tex]
Put x = [tex]{\sf e^{\iota z}}[/tex]:
[tex]{:\implies \quad \sf x^{2}-2a\iota x-1=0}[/tex]
Find the discriminant, here D will be, D = (-2ai)² - 4 × 1 × (-1) = 4 - 4a² = 4(1-a²)
Now, By quadratic formula:
[tex]{:\implies \quad \sf x=\dfrac{-(-2a\iota)\pm \sqrt{4(1-a^{2})}}{2}}[/tex]
[tex]{:\implies \quad \sf x=\dfrac{a\iota \pm \sqrt{1-a^{2}}}{2}}[/tex]
[tex]{:\implies \quad \sf e^{\iota z}=\dfrac{a\iota \pm \sqrt{1-a^{2}}}{2}}[/tex]
[tex]{:\implies \quad \sf \iota z=log\bigg(\dfrac{a\iota \pm \sqrt{1-a^{2}}}{2}\bigg)}[/tex]
Using the formula for logarithms, we have:
[tex]{:\implies \quad \sf \iota z=log(a\iota \pm \sqrt{1-a^{2}})-log(2)}[/tex]
[tex]{:\implies \quad \sf z=\dfrac{1}{\iota}log(a\iota \pm \sqrt{1-a^{2}})-\dfrac{1}{\iota}log(2)}[/tex]
The sine function is periodic on 2πn and zero on (π/2), and the logarithmic expression becomes undefined for all ia±√(1-a²) < 0, so we will take modulus of it
[tex]{:\implies \quad \boxed{\bf{z=\dfrac{1}{\iota}log\bigg|a\iota \pm \sqrt{1-a^{2}}\bigg|-\dfrac{1}{\iota}log(2)+\dfrac{\pi}{2}+2\pi n\:\:\forall \:n\in \mathbb{Z}}}}[/tex]
A is directly proportional to B.
When A = 12, B = 3
Find the value of A when B=5
Answer:
a= 20
Step-by-step explanation:
12/3
a/5
60 = 3a
a = 60/3 = 20
Using the image above, what is the measure of Angle E? Round to the nearest hundredth
Answer:
the answer is 30°
Step-by-step explanation:
180°-90°-60°
Which is an equation of an asymptote of the hyperbola? y = 3x 10 y = –3x 8 y = x 2 y = x
The equation of the asymptote of the hyperbola is y = 3x + 10
How to determine the asymptote?From the complete question the asymptote passes through the points:
(x,y) = (-1, 7) and (-3,1)
The slope of the line is calculated using:
[tex]m = \frac{y_2 -y_1}{x_2 -x_1}[/tex]
So, we have:
[tex]m = \frac{7 - 1}{-1 + 3}[/tex]
This gives
m = 3
The equation is then calculated using:
y = m(x -x1) + y1
This gives
y = 3(x + 1) + 7
Evaluate
y = 3x + 3 + 7
y = 3x + 10
Hence, the equation of the asymptote is y = 3x + 10
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Use the order of operations to evaluate the numerical expression.
Answer:
I'm sorry but I need some numbers to solve. we just learned this in class so I'm new though
Step-by-step explanation:
Needs numbers
Solve for x. 8x-6=10x-8
Answer:
x=1
Step-by-step explanation:Let's solve your equation step-by-step.8x−6=10x−8Step 1: Subtract 10x from both sides.8x−6−10x=10x−8−10x−2x−6=−8Step 2: Add 6 to both sides.−2x−6+6=−8+6−2x=−2Step 3: Divide both sides by -2.−2x−2=−2−2 x=1
If the area of a circle is 90 cm, what is its radius?
Answer:
r= 5.35
Step-by-step explanation:
Answer:
the radius is .... 5.35 :P
kaii~
Kim asked the first 50 kids to school in the morning how they feel about waking up early. she uses their response to predict the responses for the entire school. was her survey random?
Kim's method of sampling the students in the given scenario is said to; It is not a random survey.
What is a random sample?
Random sampling is defined as a sampling technique whereby each sample has an equal probability of being chosen. This means that a sample chosen randomly is meant to be an unbiased representation of the total population.
In this question, we are told that Kim asked the first 50 kids to school in the morning about a question and used their responses to arrive at a conclusion.
Now, Kim's method is not random because it is biased as only those who came earliest were asked.
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The scatterplot that represents the monthly values of stock QRS has an r-
value of -0.993. Which best describes the correlation of the graph?
OA. Weak correlation
B. Strong positive correlation
C. Strong negative correlation
OD. No correlation
Answer:
C
Step-by-step explanation:
Because it's a negative, then we could assume that it is a negative correlation. And because it's closer to -1, it is a strong negative correlation.
The value -0.993 is Strong Negative correlation.
What is Coefficient Correlation?The strength and direction of two variables in a scatterplot are quantified by the correlation coefficient, or r value. It goes from one to one.
A perfect positive correlation is denoted by +1.A perfect negative correlation is denoted by -1.0 indicates a lack of associationSo, the value close to 1 is Strong positive correlation and close to -1 is Strong Negative correlation.
Thus, -0.993 close to -1 is Strong Negative correlation.
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You decide to go to dinner with three friends. Before the check comes, the group decides to split the check evenly. The total
check is $134.50. As a group you decide to tip the waiter 20% on top of the total check amount. How much money should
you and each friend pay, including tip? Round your answer to the nearest cent.
Answer:
You each will pay $40.35
Step-by-step explanation:
First you take the total $134.50 and divide it by 4 which is you and your three friends.
This will give you 33.625 which is the amount each of you will pay without tip.
To find the tip you take 20% from $134.50 which will give you 26.9 and when you divide that by the four of you it will give you 6.725.
Then you take your amount 33.625 plus your tip 6.725 which will give you $40.35.
The total you all will pay will be $161.40 this is the total $134.50 plus the tip $26.90.
Hope this helped.
Jade jade made 2 quarts of salsa for a party. tania brought twice as march salsa for the party. how many pints of salsa do the girls have in all
Answer:
6 quarts of salsa in all
"Twice" indicates multiplying by 2, so multiply 2 by 2 to get 4.
That's not the end of the problem, though. "In all" indicates that we must add the values together. 2 plus 4 is 6, so your answer is 6.
Find the arc length and sectors perimeter of an 85 degree arc of a circle with a finger radius of 4ft
Answer:
Arc length = 5.93 ft
Perimeter = 13.93 ft
Step-by-step explanation:
85/360*2*π*4 = arc length
5.93411946 ft
Perimeter = 4+4+5.93 = 13.93 ft
3. A man stands 200 ft to the left of where a car starts moving north. The car is
moving at 50ft/sec. (a) Find the rate at which the diagonal distance from the man
to the car is changing once the car has been traveling for 10 seconds. (b) Find the
rate at which the angle from the man to the car is changing at the same moment
(10 seconds after the car starts moving). Round answers to 4 decimal places.
200 ft
car (moving at 50 ft/sec)
O
The length of the diagonal will be 538.5 ft. Then the rate at which the angle from the man to the car is changing at the same moment will be 46.43 ft/s.
What is speed?The distance covered by the particle or the body in an hour is called speed. It is a scalar quantity. It is the ratio of distance to time.
We know that the speed formula
Speed = Distance/Time
A man stands 200 ft to the left of where a car starts moving north. The car is moving at 50ft/sec.
The rate at which the diagonal distance from the man to the car is changing once the car has been traveling for 10 seconds. Then the length of the diagonal will be
L² = x² + y²
L² = 200² + (50 × 10)²
L² = 40000 + 250000
L² = 290000
L = 538.50 ft
Then the rate at which the angle from the man to the car is changing at the same moment will be
L² = x² + y²
Differentiate with respect to time, then we have
2L (dL/dt) = 0 + 2y (dy/dt)
2(538.5) (dL/dt) = 2 (500) (50)
dL/dt = 46.43 ft/sec
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Help me fast
Can u pls explain the question
AB=AD=8CM
Step-by-step explanation:
I Go To that school
A paint mixes green and white paint in the ratio 13:50. 4 litres of white paint are used. How much green is used? please help me
Answer:
1.04 liters
Step-by-step explanation:
If 50 is 4liters
Then 13 is x
Use this below equation
Value t is for value y then how much for value z
[tex]x = \frac{t}{y} \times z[/tex]
X = 4/50 *13
X = 1.04liters
Or
13/50 = x/4 (cross multiply)
50X = 52
X = 52/50
X = 1.04 liters
At the beginning of every gym class, Mr. Gordon leads the class in a warm-up. In today's warm-up, the class does jumping jacks for 3 minutes. Erin does 54 jumping jacks in that time. Mr. Gordon says the class will do jumping jacks for 4 minutes tomorrow.
If Erin does jumping jacks at the same rate tomorrow, how many will she do?
Answer:
72 jumping jacks
Step-by-step explanation:
54 divided by 3 to get per minute and you would get 18 per minute then add to 54 for when she does for 4 minutes
Answer:
72 jumping jacks
Step-by-step explanation:
Question 5 of 20
(___)^2=(secx-1)(secx+1)
answer here:
Solve the following system of equations by linear combination: 5x + 2y = 14 y = x – 7 (4, –3) (2, –5) (–5, 2) (–3, 4)
The solution to the system of equations is (-3,4)
How to solve the system of equations?The equations are given as:
5x + 2y = 14
y = x – 7
Substitute y = x – 7 in the first equation
5x + 2(x - 7) = 14
Expand
5x + 2x - 14 = 14
Evaluate the like terms
7x = 28
Divide
x = 4
Substitute x = 4 in y = x – 7
y = 4 – 7
Evaluate
y = -3
Hence, the solution to the system of equations is (-3,4)
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Find the mean of the data.
9, 56, 24, 59, 2
Answer:
24 because it is the middle number
Step-by-step explanation:
What’s the circumference to this problem?
Answer:
The formula to get the circumference of a circle is [tex]C=2*\pi * r[/tex]. We can then input the value and we get that [tex]C=2*\pi*4[/tex] and as we solve it more the final answer that we get is [tex]C=25.133[/tex].
Hope this helps! Let me know if you have any questions