Anyone know this answer to my question

Answer:

Step-by-step explanation:

V=1/3 πr²h

700 π=1/3 πr²×21

r²=100

r=√100=10 units

Answer:

r = 10

Step-by-step explanation:

Using the formula:

[tex]V = \pi r^{2} \frac{h}{3}[/tex]

We make r the subject to get:

[tex]r = \sqrt{3 \frac{V}{\pi h} }[/tex]

Now we substitute values given and simplify:

r = [tex]\sqrt{3 \frac{700\pi }{21\pi } }[/tex]

We can cancel out pi from top and bottom:

r = [tex]\sqrt{3 \frac{700 }{21 } }[/tex]

We can do 700÷21 = 33.3333333333

Now we have:

[tex]r = \sqrt{3 *33.3333333333}[/tex]
Simplify to get :

r ≈ 10

Answer:

7/8

Step-by-step explanation:

Answer:

y= -2

Step-by-step explanation:

The line y = -2 is half way between the 2 shapes (there are 3 squares between the line).

If you were to have a mirror and place it down this line, you would be able to see that the shapes are reflected in the exact same place.

I have attached a photo to help demonstrate what y= -2 looks like :)

Hope this helps!

Answer:

y=-1

Step-by-step explanation:

The line of reflection is y = -1

Answer:

Step-by-step explanation:

Angle 5 is opposite to 37 => It's equal to 37.
Angle 6 and 7 are supplementary to angle 5 => They are equal to 180 - 37 = 143 each.

Angle 4 is corresponding to Angle 7, and since the 2 lines are parallel, it's equal to 143.

Angle 1 and 3 is supplementary to Angle 4, so they are equal to 180-143 = 37 each

Angle 2 is opposite to Angle 4, so it's equal to 143.


Answer : Angle 1,3,5 = 37
Angle 2,4,6,7 = 143

The value of c in cents when he bought 3 cakes for c cents and 2 loaves of bread for 2c - 11 cents each is 87 cents.

He buys 3 cakes that cost c cents each.

Therefore,

cost of the 3 cakes = 3c

2 loaves of bread that cost 2c - 11 cents each. Therefore,

cost of the two loaf of bread = 2(2c - 11) = 4c - 22

Hence, the total amount he spends can be represented as follows:

5.87 dollars = 587 cents

Therefore,

3c + 4c - 22  = 587

7c = 587 + 22

7c = 609

c = 609 / 7

c = 87

learn more on equation here: https://brainly.com/question/9898024

Answer:

The answer is B!

Step-by-step explanation:

If you can figure out one part you can get the second part.

I went for the second part and got 471 so the only answer is b!

Have an amazing day!

Please mark brainliest!

Answer:

A.) 3m=r where M is the months he will read and R is the total number of books read.

B.) is 36 Because the equation is 3m=r you factor in the m as 12 because there are 12 months in a year. you get the new equation 3*12=R Finish the equation and you get 36=r

Step-by-step explanation:

Hope this helped.

A brainliest is always appreciated.

no initial amount of books read so y intercept is 0

Now equation in slope intercept form

where x is months

Answer:

r=0.2*tanφ*secφ.

Step-by-step explanation:

1) the rule is:

y=rsinφ; x=rcosφ; then

2) rsinφ=5r²cos²φ;

r=0.2*tanφ*secφ.

Hello!

Let's solve this question by using elimination.

5x + 10y = 7

4x + 8y = 3

Let us solve for "y" first by making our "x" variables cancel each other out.

4(5x + 10y = 7)

-5(4x + 8y = 3)

20x + 40y = 28

-20x -40y = -15

0 = 13

Since both the "x" and "y" variables were canceled out after trying to eliminate one of the variables, we can't find a solution since we now have no variables to solve for, therefore there is no solution.

Answer: No solutions

Step-by-step explanation:

[tex]slpoe = \frac{12 - 2}{2 - - 3} \\ \frac{10}{5} \\ 2[/tex]

now use point slope formula

[tex]( y - 2) = 5(x - - 3) \\ (y - 2) = 5(x + 3)[/tex]

The (2x,2y) column data is: A'=(-2,-6), B'=(-2,2), C'=(10,2) and D'=(10,-6). See the sketch of the (x,y) column and the (2x, 2y) column in the image 5.

The Cartesian graph presents x-axis (horizontal) and y-axis (vertical) that intercept in the origin (0,0). This type of graph is used to plot x and y coordinates.

The points, in the plane, are represented as (x,y).

Hence for your question:

A=(-1,-3) ⇒ -1 is x-coordinate and -3 is y-coordinate.

B=(-1,1) ⇒ -1 is x-coordinate and 1 is y-coordinate.

C=(5,1) ⇒ 5 is x-coordinate and 1 is y-coordinate.

D=(5,-3) ⇒ 5 is x-coordinate and -3 is y-coordinate.

For solving this question, you should plot the given points on a Cartesian graph.

      The result of this step you can see in the image 1.

         The result of this step you can see in the image 2.

         The result of this step you can see in the image 3. Now you see a rectangle.

       Thus, you should multiply x-coordinate and y-coordinate by 2.

       A=(-1,-3) ⇒ A'=(-2,-6)

       B=(-1,1)   ⇒ B'=(-2,2)

       C=(5,1)   ⇒ C'=(10,2)

       D=(5,-3) ⇒ D'=(10,-6)

       The result of this step you can see in the image 4.

         The result of this step you can see in the image 5. Now you see a new red rectangle with dimensions greater than the black rectangle plotted from (x,y) column.

Read more about point coordinates here:

https://brainly.com/question/25168970

Answer:

As with any function, the domain of a quadratic function f(x) is the set of x -values for which the function is defined, and the range is the set of all the output values (values of f ). Quadratic functions generally have the whole real line as their domain: any x is a legitimate input. The vertex will be the minimum (lowest point) of the graph if and the maximum (highest point) of the graph if

Step-by-step explanation:

[tex]10 + |10n + 6 | = 76 \\ \\ |10n + 6 | = 76 - 10 \\ |10n + 6 | = 66 \\ 10n + 6 = 66 \: \: \: \: \: or \: \: \: \: 10n + 6 = - 66 \\ 10n = 66 - 6 \: \: \: \: \: \: \: 10n = - 66 - 6 \\ 10n = 60 \: \: \: \: \: \: \: \: \: 10n = - 72 \\ n = 6 \: \: \: \: \: n = - 7.2[/tex]

Answer:

The quotient of (6x4 + 15x3 + 10x2 + 10x + 4) ÷ (3x2 + 2)

is 2x2 + 5x + 2.

Step-by-step explanation:

Answer: 10

Step-by-step explanation:

Answer:

x = 10

Step-by-step explanation:

[tex]14x - 38 = 2(51)[/tex]

[tex]14x - 38 = 102[/tex]

[tex]14x = 102 + 38[/tex]

[tex] \cfrac{14x}{14} = \cfrac{140}{14} [/tex]

[tex]x = 10[/tex]

~

Answer:

460

Step-by-step explanation:

i just did the question so yk

Answer: 460

Step-by-step explanation:

Answer:

A.

Step-by-step explanation:

I'm not sure how to solve it properly, but i graphed it and A was the answer.

The truss bridge should depict a congruent triangle by having equal sides and angles.

It should be noted that the congruence of a triangle simply means that a triangle that has all the three corresponding sides to be equal.

In this case, after designing the truss bridge model, it's important that the sides of the model are equal. Also, the corresponding angles of the model have to be equal too.

Learn more about triangles on:

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Answer:

Step-by-step explanation:

Every 5 ice cream cones a customer buy, they get 1 for free.
It means, every 5 ice cream they buy, they get 6

=> The ratio for it is 5:6

:D

The value of x to 1 decimal place is,

⇒ x = 128.2 mm

A triangle is a three sided polygon, which has three vertices and three angles which has the sum 180 degrees.

Given that;

The figure of triangle is shown.

Here, The length of perpendicular distance = x mm

And, The hypotenuse = 178 mm

Hence, We get;

⇒ sin 34° = x / 178

⇒ 0.72 = x/178

⇒ x = 0.72 × 178

⇒ x = 128.2 mm

Learn more about the triangle visit;

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#SPJ2

Answer:

C. ED

Step-by-step explanation:

The center of the angle is the point E, so it would be written first.

She used 29.8 feet of fencing for the fence -> The circumference of the circular garden is 29.8ft

Formula for circumference : 2πr

So, the radius is equal to : 29.8 : 2 : π = 4.74281730414... (round to 4.7)

Recheck : 4.7 x 2π = 29.5309709437... (close to 29.8)

Answer:

The time it'd take for the element to have 15 g of mass is approximately 68 min.

Step-by-step explanation:

The radioactive decay of a substance is given by the following formula:

Since the element has a half life of 12 minutes, this means that after this time the mass of the element will be half of it was originally, therefore:

Therefore the mass of the element is given by:

If the initial mass is 760 g and the final mass is 15 g, we have:

The time it'd take for the element to have 15 g of mass is approximately 68 min.

Step-by-step explanation:

Answer:

What I understand is that I need to give someone an exact number so that when 30% is taken, they keep exactly 35,000

To make the statement above true, we would need to divide 35,000 by 7 since the answer would be 10% of the number we need. Once we do this we get 5000 which is 10% now we multiply 5000 by 10 to get 100% and we get 50.000 once we give this amount to the person and 30% is taken away they are left with 35,000

Answer:

ok so lets see how much money she needs to earn today

200-88=122

so she needs 122 dollars

so lets see how many km that is

122/8=15.25

so she needs to walk 16 km on sunday

Hope This Helps!!!

Answer:

np

Step-by-step explanation:

Answer:

[tex]\left(7+x\right)^{12}[/tex]

Step-by-step explanation:

[tex]\left\{\left(7+x\right)^4\right\}^3[/tex]

[tex]\left(\left(7+x\right)^4\right)^3[/tex]

Let's apply the exponent rule:

[tex]\left(\left(7+x\right)^4\right)^3=\left(7+x\right)^{4\times \:3}[/tex]

Multiply 4*3=12

[tex]\left(7+x\right)^{12}[/tex]

~

Hope this helps!