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3 years ago

I need help on this please

Mathematics

1 answer:

Sidana [21]3 years ago

8 0

Answer:

7.5

Step-by-step explanation:

because a^2+b^2=c^2 then:

a=5

c=9

b=?

so you do 9^2 - 5^2 which will give you 56, you square root 56 and get 7.48 which you round to 7.5 since it wants it in <em>tenths</em>

<em>pls brainliest if you found it useful</em>

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Answer:

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Step-by-step explanation:

Given:

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3 years ago

In Yellowstone National Park there are 300 species of birds that migrate. This accounts for 2/7 of all the species of birds sigh

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Answer:

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Step-by-step explanation:

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Read 2 more answers

an investment $of 6,599.20 earns 4.2% interest over 7 years. approximately how much interest is earned on the investment

Natalka [10]

Answer:

Interest earned on the investment is; $2237.31254875

Step-by-step explanation:

Given: Principal (P) = $6, 599.20 r= 4.2% and t = 7 years.

Formula for annual compound interest, including principal sum is:

A = P(1+\frac{r}{100n})^{nt} .....[1]

where ;

A represents the total amount , including interest.

P represents the initial deposits

r represents the rate of interest

t represents the number of times that the interest is compounded per year

n represents the number time that interest is compounded per year

Here, n = 12

therefore,

Substituting the values of P= $6, 599.20 r= 4.2% and t = 7 years in equation [1];

A = 6599.20(1+\frac{4.2}{1200})^{7 \times 12} = 6559.20(1+0.0035)^{84}

Simplify:

A = $8796.51254875

We have to find the interest is earned on the investment;

Use the formula:

A = I + P or

I = A - P

where,

I represents the interest earned on the investment;

we have;

I = 8796.51254875 - 6559.20 = 2237.31254875

Therefore, the interest earned on the investment is; $2237.31

6 0

3 years ago