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swat32
3 years ago
12

Solve for r: A = 2 πrh​

Mathematics
1 answer:
Zielflug [23.3K]3 years ago
4 0

Answer:

r=A/2πh

Step-by-step explanation:

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The length of a rectangle with area 38 in2 depends on its width. Write the formula that describes the length of the rectangle as
Ostrovityanka [42]

Answer:

L = 38/W

Step-by-step explanation:

The area of a rectangle is computed by multiplying length by width. For length L and width W in inches, your rectangle has area ...

A = LW

38 = LW

Then the length can be found by dividing the equation by W:

L = 38/W

8 0
3 years ago
A pizza place has pizzas in 2 different sizes, with 8 different flavors for the crust, and 8 different toppings.
mamaluj [8]

Use multiplication:

2\text{ sizes}*8\text{ flavors}*8\text{ toppings}=\large\boxed{128\text{ pizzas}}

This question is basically the same as the other question of yours that I answered, so the explanation is very similar:

You can imagine the possibilities as leaves on a tree. Your tree has 2 large branches to represent the two possible sizes. Each of those branch off into 8 smaller branches, each representing a crust flavor. Each one of the smaller branches has 8 leaves to represent a different topping. Each leaf is a combination of a size, a crust flavor, and a topping, so it represents a complete pizza. Your job is to calculate the number of leaves.

5 0
2 years ago
A car travels at the speed of 65 miles per hour. going through construction, it travels at 3/5 this speed. write thsi decimal as
zhuklara [117]
65*0.6= 39

39 is the time



4 0
3 years ago
on monday a scientist has 3 cells in a dish. each day the number of cells multiplies. what is the expression to be used to descr
liubo4ka [24]
Lets say N as cells

On monday N = 3

Multiply means that on tuesday is 9 cells and
Wednesday will 27 cells

Therefore N on wednesday is

No. of cells = 9n
4 0
3 years ago
(a) If cos² (34°) - sin² (34°) = cos(A°),then<br> A =<br> degree’s
krok68 [10]

~~~~~~~\cos^2 \left(34^{\circ}\right) - \sin^2 \left( 34^{\circ} \right)=\cos A\\\\\implies \cos \left( 2 \cdot 34^{\circ} \right) = \cos A~~~~~~~~~~~~~;[\cos 2x = \cos^2 x -\sin^2 x]\\\\\implies \cos \left(68^{\circ}\right) = \cos A\\\\\implies A = 68^{\circ}

3 0
2 years ago
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