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3 years ago

(7i²– 5i + 12) – (3i²+ 6i– 9)simplify

Mathematics

1 answer:

Harlamova29_29 [7]3 years ago

8 0

Answer:

the correct answer is

4i^2 +6i +21

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3 years ago

Which of the following statements are true of the hypotenuse of a right triangle?

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3 years ago

Which system of inequalities is represented by the graph?

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3 years ago

1. Jeremy has $12000 cash to invest in the bank compounded at 4% interest annually.

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Answer:

$A(x) = 12000(1.04)^x$

Step-by-step explanation:

Compound interest:

The compound interest formula is given by:

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

Where A(t) is the amount of money after t years, P is the principal(the initial sum of money), r is the interest rate(as a decimal value), n is the number of times that interest is compounded per year and t is the time in years for which the money is invested or borrowed.

$12000 cash

This means that $P = 12000$

Compounded at 4% interest annually.

This means that $r = 0.04, n = 1$

What equation will calculate the value in x years?

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

$A(x) = P(1 + \frac{r}{n})^{nx}$

$A(x) = 12000(1 + 0.04)^x$

$A(x) = 12000(1.04)^x$

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3 years ago

Kyle has created a video game called Falling Stars in which the player zaps stars from the sky. A certain number of stars must b

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Answer:the answer is D) 5(30 - 5) + 40; 165 stars

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5(30 - 5) + 40

5(25) + 40

165 stars

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4 years ago

Read 2 more answers

(7i²– 5i + 12) – (3i²+ 6i– 9)simplify ​

(7i²– 5i + 12) – (3i²+ 6i– 9)simplify