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Pani-rosa [81]
3 years ago
14

Find the area of a circle with a radius of 8. Either enter an exact answer in terms of pie or use 3.14 for pie and enter your an

swer as a decimal

Mathematics
1 answer:
denis-greek [22]3 years ago
4 0

Answer:

64π

Step-by-step explanation:

The area of a circle can be found using the formula:

A=πr^2

The radius is 8, so we can plug that into the equation.

A=π(8)^2

Simplify.

A=64π

Or, as a decimal:

A=64*3.14

A=200.96

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irina [24]
56 is the answer to the equation
3 0
2 years ago
Read 2 more answers
1/3 (6x +12) - 2(x-7)=19
Morgarella [4.7K]

Answer:

no solution

Step-by-step explanation:

Given

\frac{1}{3}(6x + 12) - 2(x - 7) = 19 ← distribute parenthesis on left side

2x + 4 - 2x + 14 = 19 , that is

18 = 19 ← not possible

This indicates the equation has no solution

4 0
3 years ago
You go to the store and pick out 3 apples for $0.60 each, 2 bananas for $0.50 each, and 1 quart of yogurt for $4.50. At checkout
Thepotemich [5.8K]

Answer:

I'm not 100% sure but I think it's $6.20

Step-by-step explanation:

First you add up the apples which equals $1.80 then you add up the bananas which equals $1.00 then you add the yogurt together which amounts to $4.50. After that you add all of that together which totals to $7.30.

For the sake of finding the percentage we're gonna move the decimal point to the very end. ( so its 730.0). Now in order to find 15% we have to find 10%. To find 10%, you move the decimal point over one (73.00). So 10% of 730 is 73. 10% + 5% = 15%. And half of 10% is 5%. So, we cut 73 in half so now we have 36.5. Now we add 36.5 to 73 (because 10% + 5%=15%) I'm just gonna round 36.5 to 37, and 73+37= 110. Now we move the decimal point back so its $1.10. Now we subtract $1.10 from $7.30 which is equal to $6.20. So your answer is $6.20.

(I'm rlly bad at explaining things so sorry if this wasnt clear enough. Also I'm not the best at math but I guess I know percentages.)

8 0
3 years ago
4. Evaluate e^-2 to one decimal place <br> A) 0.7<br> B) -1.4<br> C) 0.1<br> D) 1.4
Aleksandr [31]
C 0.1 .. I just did it !!!
6 0
1 year ago
A curve has the slope 2x+3 at each point (x,y) on the curve. What is an equation for this curve if it passes through the point (
yawa3891 [41]
Therefore, f(x) = 2x + 3 is your derivative function, and you need to find the original curve. So find the antiderivative using the given conditions... 

∫f(x) = ∫2x + 3 dx 
F(x) = x^2 + 3x + C 
2 = (1)^2 + 3(1) + C 
2 = 4 + C 
C= -2 

Therefore, the curve is F(x) = x^2 + 3x - 2 

Proof: The derivative is the slope at every (x, y) point. The derivative of F(x) comes out to be 2x + 3, so we have found the curve. Plug in x = 1, and y = 2, so the conditions have been met. 

<span>Hope I helped.</span>
5 0
3 years ago
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