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Tems11 [23]
2 years ago
14

Solve for indicated variable. V= 1/3πr^2h solve for r

Mathematics
1 answer:
sergey [27]2 years ago
8 0
V=\frac{1}{3}\pi r^2h\\\\\frac{1}{3}\pi r^2h=V\ \ \ \ |multiply\ both\ sides\ by\ 3\\\\\pi r^2h=3V\ \ \ \ |divide\ both\ sides\ by\ \pi h\\\\r^2=\frac{3V}{\pi h}\Rightarrow\boxed{r=\sqrt{\frac{3V}{\pi h}}}
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Two identical triangles form a parallelogram with a base of 8 Inches and a height of 6 inches.What is the area of one triangle?
dedylja [7]

Answer: The area of the triangle is 24 square inches

Step-by-step explanation:

Hi, since the 2 triangles form a parallelogram ( see attachment) we have the base and height of the triangles, we have to apply the next formula:

Area of a triangle; (base x height) /2

Replacing with the values:  

A = (8x6 )/2

A = 48 /2

A = 24 square inches

The area of the triangle is 24 inches

Feel free to ask for more if needed or if you did not understand something.

4 0
2 years ago
A bag has 5 yellow marbles, 3 red marbles and 2 blue marbles. Quinn randomly picks a marble from the bag and returns it before a
agasfer [191]

Answer:

Quinn can expect to pick blue 40 times

Step-by-step explanation:

the probability of picking blue is stated as 2/10 which can be reduced to 1/5

multiply the number of times they pick a marble ( shown as 200) by the probability of picking a blue one ( 1/5)

200 x 1/5 = 200 / 5 = 40

Quinn can expect to pick blue 40 times

6 0
2 years ago
Read 2 more answers
Write a real-world problem that can be represented by the equation x + 18 = 24.
adoni [48]
You go to the store and buy x amount of pies and 18 cakes. You bought 24 pastries in all. How many pies did you buy
8 0
2 years ago
If f(x) = -3x - 5 and g(x)= 4x - 2, find (f-g) (x).
Eddi Din [679]

Answer:

-7x-3

Step-by-step explanation:

(f-g)(x) just means f(x)-g(x).

So

-3x-5-(4x-2)\\-3x-5-4x+2\\-7x-3

4 0
3 years ago
1. x = y + 10<br> x=2y + 3<br> How do we solve this
Dmitrij [34]

Answer:

y=7 x=17

Step-by-step explanation:

2y+3=y+10

x=7+10

7 0
3 years ago
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