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Ne4ueva [31]
2 years ago
9

Can someone help me find the volume of the sphere

Mathematics
1 answer:
uysha [10]2 years ago
8 0
\text {Volume = }  \dfrac{4}{3}  \pi r^3

\text {Volume = }  \dfrac{4}{3}  \times 3.14 \times  (2)^3

\text {Volume = }  33.49 \  unit^3 \text {(nearest hundredth) }
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What is the value of the expression (–5) -3? It’s -125
Hoochie [10]

Answer:

Step-by-step explanation:

The correct answer would actually be 15 because (-5) multiplied by -3 makes it positive 15.

3 0
3 years ago
Read 2 more answers
PLEASE HELP! IF YOU DON'T KNOW DON'T ANSWER! 60 POINTS!!
postnew [5]

Answer:

an = 1/2 (4)^ (n-1)

a6 = 512

Step-by-step explanation:

The formula for a geometric sequence is

an = a1 (r)^(n-1)

where an is the term of the sequence

a1 is the initial term of the sequence

r is the ratio

and n is the term number

We know a1 = 1/2 and r =4

I will assume that x=6 means we want to know the 6th term

an = 1/2 (4)^ (n-1)

We want to find the 6th term

a6 = 1/2 * 4^(6-1)

a6 = 1/2 * 4^5

a6 = 512

3 0
3 years ago
You earn $65,000 a year, are married, and claim your spouse, yourself, and two children. What amount is withheld weekly for fede
german

Answer:

C

Step-by-step explanation:

5 0
2 years ago
A person invest $10,000 into a bank the bank pays 4.75% interest compounded semi annually. To the nearest 10th of a year, how lo
Mama L [17]

Answer:

T is 13.9 years to the nearest 10th of a year

Step-by-step explanation:

In this question, we are to calculate the number of years at which someone who invests a particular amount will have a particular amount based on compound interest.

To calculate the number of years, what we do is to use the compound interest formula.

Mathematically,

A = P(1+ r/n) ^nt

Where A is the final amount after compounding all interests which is $19,200 according to the question

P is the initial amount invested which is $10,000 according to the question

r is the rate which is 4.75% according to the question = 4.75/100 = 0.0475

n is the number of times per year in which interest is compounded. This is 2 as interest is compounded semi-annually

t= ?

we plug these values;

19200 = 10,000(1+0.0475/2)^2t

divide through by 10,000

1.92 = (1+0.02375)^2t

1.92 = (1.02375)^2t

We find the log of both sides

log 1.92 = log [(1.02375)^2t)

log 1.92 = 2tlog 1.02375

2t = log 1.92/log 1.02375

2t = 27.79

t = 27.79/2

t = 13.89 years

The question asks to give answer to the nearest tenth of a year and thus t = 13.9 years

7 0
3 years ago
8/12-4/12 it is 7th grade math mcgrawhill page 281
navik [9.2K]

Answer:

-1.5

Step-by-step explanation:

8÷12 is 1.5 and 4÷12 is 3 so 1.5-3 is -1.5

8 0
2 years ago
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