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3 years ago

6

If you deposit 1000 in a savings account with an intrest rate of r compounded annually then the balance in the account after 3 y

ears is given by the function b(c)=1000(1+r) where is r written as a decimal?

1 answer:

deff fn [24]3 years ago

7 0

Answer:

3.23%

Step-by-step explanation:

The rate is acquired from 1100 = (1+r)^3 *1000. then r is equal to 3.23%.

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Read 2 more answers

The drawing shown contains the intersection of two lines.

Phantasy [73]

Answer:

$\Huge \boxed{x=5}$

$\Huge \boxed{121\°}$

Step-by-step explanation:

∠1 and ∠2 are vertical angles.

∠1 = ∠2

<u>Part A:</u>

<u></u>

Create an equation and solve for x.

20x + 21 = 30x - 29

Add 29 and -20x on both sides.

20x + 21 + 29 - 20x = 30x - 29 + 29 - 20x

Simplify the equation.

50 = 10x

Divide both sides by 10.

$\frac{50}{10}$ = $\frac{10x}{10}$

Simplify the equation.

5 = x

Switch sides.

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<u>Part B:</u>

<u></u>

Let x = 5

20(5) + 21

Distribute.

100 + 21

Add.

= 121

Since both angles are vertical angles, they are equal.

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∠2 = 121°

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3 years ago