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saveliy_v [14]
3 years ago
14

A=pi r^2 which if the following equations can be used to solve for the radius (r)

Mathematics
1 answer:
zhannawk [14.2K]3 years ago
4 0
C. You would first have to divide A by Pi, then take the square root of r, in order to get r by itself.
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5 Select the correct expressions. Which expressions are equivalent to 3x + 2(x - 1) - 4? 3x + 2x - 2 - 4 5x - 6 3(x-4) 3(x + 2)
beks73 [17]

Your question is a bit unclear, but I will try to answer it anyway.

The expression 3x + 2(x - 1) - 4 simplified is:

3x + 2(x - 1) - 4

= 3x + 2x - 2 - 4

= 5x - 6

I cannot tell what the answers are but I am guessing they are these?:

A) 3x + 2x - 2 - 4

B) 5x - 6

C) 3(x - 4)

D) 3(x + 2) - 6

E) 6(x - 1)

Answer A is one, and so is answer B. If I read your question accurately.

I hope I helped!

8 0
3 years ago
What is the perimeter of a triangle if the lengths of the sides
Leno4ka [110]

Answer:

P=x+18

Step-by-step explanation:

a=8

b=x

c=10

P=8+x+10

8 0
3 years ago
3 + (-2)<br><br> pls tell me answer and how to solve it
svet-max [94.6K]

Answer:

3 + (-2)

= 3 - 2

= 1

hope this helps

5 0
3 years ago
Madi has $8.80 in pennies and nickels.
shepuryov [24]
Let p = number of pennies.
Let n = number of nickels.

We are given that n= 2p and the total value is $8.80.

We know that a penny = $0.01 and that a nickel = $0.05.

So $0.01p + $0.05n = $8.80.

Substitute 2p for n:
$0.01p + $0.05*2p = $8.80

$0.01p + $0.10p = $8.80

$0.11p = $8.80

p = 80
So n = 2p = 2*80 = 160

Thus there are 80 pennies ($0.8) and 160 nickels ($8.00). The value of all the coins is $8.80.
7 0
3 years ago
Let X denote the amount of time a book on two-hour reserve is actually checked out, and suppose the cdf is the following.
goldfiish [28.3K]

Answer: a) 0.2500

b) 0.1875

c) 0.4375

d) 1.414

e) 0, x/2

f) 1.3333

g) 0.4714

h) 2

Step-by-step explanation: see attachment below

3 0
3 years ago
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