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yarga [219]
2 years ago
10

Sphere a has a radius of 2cm. Sphere b has a radius of 4cm. Calculate the volume of sphere a.

Mathematics
1 answer:
kykrilka [37]2 years ago
6 0

Answer:

sphere a: 33.51 and sphere b: 268.08

Step-by-step explanation:

math

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Antuan deposited $2590 into a 3 year CD at an interest rate of 2.3% compounded quarterly.
lora16 [44]

Answer:

the interest rate is $183.89 =~ $ 184

Step-by-step explanation:

In this question, Antuan deposited $2590 into a 3 year CD (Certificate of Deposit)  at an interest rate of 2.3% compounded quarterly. We need to find the interest account earned after 3 years.

Formula used will be :

Interest = P ( 1 + r/n) ^ n ^ t - P

Where

P= Principal amount

r= interest rate (in decimals)

n= no of times the interest is compounded

t = no of years

Here we are subtracting P because we only need interest amount and not the future value.

Using this formula and finding the value will be:

P= $2590

r = 2.3 % or 0.023

n = 4

t = 3

Interest = 2590 * ( 1 - 0.023 / 4) ^ 4^ * ^ 3 - 2590

Interest= 2590 (1.071) -2590\\Interest= 2773.89 - 2590\\Interest= 183.89

So the interest rate is $183.89 =~ $ 184

7 0
3 years ago
A. 140°<br><br> B. 300°<br><br> C. 220°<br><br> D. 180°<br><br> E. 320°
kvasek [131]

Answer:

140

Step-by-step explanation:

3 0
2 years ago
What is the value of y2 – x2 when y = 6 and x = 5?
Papessa [141]

Answer:

y^2 - x^2 = 11

Step-by-step explanation:

y^2 - x^2 = ?

Substitute.

y = 6

x = 5

Becomes:

6^2 - 5^2 = ?

Solve.

6^2 = 6 x 6

6 x 6 = 36

5^2 = 5 x 5

5 x 5 = 25

36 - 25 = 11

8 0
2 years ago
Someone smart help me please
wolverine [178]
(-5,2) concave up

Hope this helps :)
6 0
2 years ago
Math help please help... ive been stuck on this, thank you so much !!!!!
mr_godi [17]

Answer: (-3,4) and (9,20)

I think these two points will make the answer you have been looking for.

3 0
3 years ago
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