3 years ago

I need help doing my homework

Mathematics

1 answer:

lozanna [386]3 years ago

7 0

Answer:

A= πr^2

45=πr^2

45/1 =22/7×r^2

45/1=22r^2/7 cross multiply

22r^2 ×1=45×7

22r^2=315 divide both sides by 22

22r^2/22=315/22

r^2=14.318

You might be interested in

I need help with geometry

nordsb [41]

Answer: The answer is C. because all biconditional statements are written w/ if and only if in statements. Hope this helps :)

Step-by-step explanation:

6 0

3 years ago

Find the sum of the arithmetic series in which a1 = –68, d = –3, and n = 20.

harkovskaia [24]

Step-by-step explanation:

Sum of 20 terms in thr arithmetic sequence adds up to -1930

6 0

2 years ago

<img src="https://tex.z-dn.net/?f=make%20x%20the%20subject%20of%20formula%20in%20the%20equation%204a%5Csqrt%7Bx%7D%20%3D%5Cfrac%

kipiarov [429]

Answer: $x = (\frac{1}{4ab})^{2}$

Step-by-step explanation:

Given:

$4a\sqrt{x} = \frac{1}{b}$

To make $x$ the subject of the formula means that we want to make $x$ to stand alone , the first thing to do is to multiply through by 1/4a , that is

$\sqrt{x} = \frac{1}{4ab}$

take the square of both sides:

$x = (\frac{1}{4ab})^{2}$

3 0

2 years ago

Read 2 more answers

. The height of a plant is 8 more inches than twice the height of a plant last month. The plant is 32 inches this month. What is

Sergeeva-Olga [200]

Answer:

the plant was 24 inches last month

Step-by-step explanation:

since it is now 8 inches more than last months take 32-8 and you get 24

7 0

3 years ago

A tree on the farm casts a shadow that is 5 feet long. Tyler standing next to the tree casts a shadow that is 2 feet tall. If Ty

k0ka [10]

Answer:

The tree is 10 feet tall.

Step-by-step explanation:

5/x=2/4

5÷2=2.5

2.5×4=10

5 0

3 years ago

I need help doing my homework ​

I need help doing my homework