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2 years ago

Evaluate 5 + 2(x + 7)2 for x = -4. O A. 23 O B. 13 O C. 18 O D. 63

Mathematics

2 answers:

dusya [7]2 years ago

7 0

Hey there! :)

Answer:

A. 23.

Step-by-step explanation:

Given:

5 + 2(x + 7)² for x = -4

Substitute in -4 for x in the equation:

5 + 2((-4) + 7)²

5 + 2(3)²

5 + 2(9)

5 + 18 = 23.

Therefore, the correct answer is A. 23.

sertanlavr [38]2 years ago

5 0

Answer:

Step-by-step explanation:

5 + 2(x + 7)^2

Let x =-4

5 + 2 ( -4+7)^2

Parentheses first

5 +2 (3)^2

5+ 2*9

Multiply

5+18

add

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3 years ago

HELP! BRAINLIEST AND 15 POINTS!

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Step-by-step explanation:

first solve for h

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2 years ago

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Ede4ka [16]

Answer:

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Let's think of each scenario at a time.

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3 years ago

tyrone opens an account at the local bank by depositing $50 of his birthday money. He continues to deposit $50 each month for 5

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Answer-

The amount will be $8944.62 after 5 years.

Solution-

We know that,

$\text{FV of annuity}=P[\dfrac{(1+r)^n-1}{r}]$

Where,

P = Payment = $50 monthly

r = rate of interest compounded monthly= $3\frac{1}{4}=3.25\%=0.0325$

n = number of period = 5 years = 5×12 = 60 months

Putting the values in the formula,

$\text{FV of annuity}=50[\dfrac{(1+0.0325)^{60}-1}{0.0325}]$

$=50[\dfrac{(1.0325)^{60}-1}{0.0325}]$

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$=50[\dfrac{5.8140}{0.0325}]$

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$=8944.62$

Therefore, the amount will be $8944.62 after 5 years.

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3 years ago

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2 years ago