Mathematics: If f(x) = x² + 7, what is the value of f(4)?

If f(x) = x² + 7, what is the value of f(4)?

Ответ:

AleciaCassidy

12.01.2022

Mathematics

The value of f(4) is 23

Step-by-step explanation:

f(x) = x² + 7

1) Plug in x as 4.

f(4) = 4² + 7

2) Simplify 4² to 16.

f(4) = 16 + 7

3) Simplify.

resulting in

The value of f(4)is 23

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Ответ:

1963038660

16.08.2022

Mathematics

1.75% and 16 times

Step-by-step explanation:

Compound interest formula:

$\sf A=P(1+\frac{r}{n})^{nt}$

where:

A = final amountP = initial principal balancer = annual interest rate (in decimal form)n = number of times interest applied per time periodt = number of time periods

Given:

P = $600r = 7% = 0.07n = 4t = 4

Substituting given values into the formula:

$\sf \implies A=600(1+\frac{0.07}{4})^{4 \times4}$

$\sf =791.9576107...$

Equivalent interest rate:

$\sf \implies \dfrac{r}{n}= \dfrac{0.07}{4}=0.0175=1.75 \%$

Number of times compounded:

$\sf \implies nt=4 \times 4=16$

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If f(x) = x² + 7, what is the value of f(4)?

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