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3 years ago

: $800 invested at a 9% interest rate for 8 years.

Mathematics

2 answers:

Korvikt [17]3 years ago

6 0

Answer:

576$

Step-by-step explanation:

$800×9/100×8=576$

Colt1911 [192]3 years ago

3 0

You would make $576. 800 at a 9% rate is $72 per year. 72x8 years is $576

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Step-by-step explanation:

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3 years ago

Steve puts an 18-foot ladder against his house. The ladder reaches a height of 15 feet on the house. How far is the bottom of th

krek1111 [17]

Answer:

$3 \sqrt{11}$

Step-by-step explanation:

Since we are given the hypotenuse which is 18 since it slanted, and leans on the house. And we are given one of the legs which is 15 since it is vertical. We can use the pythagorean theorem to solve for this problem.

${a}^{2} + {b}^{2} = c {}^{2}$

where a and b are the legs and c is the hypotenuse l.

Let plug it in

${a}^{2} + 15 {}^{2} = {18}^{2}$

${a }^{2} + 225 = 324$

${a}^{2} = 99$

$a = \sqrt{99}$

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$a = 3 \sqrt{11}$

4 0

3 years ago

Help me find the length of BC?

sergiy2304 [10]

Is This For Geometry?

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3 years ago

How to calculate angle BCE?

Olenka [21]

Answer:

75.3 degrees ( to nearest tenth).

Step-by-step explanation:

If we take a section through the plane BCHE we get a rectangle.

BC = 2 cm and BE = √(7^2 + 3^2). ( By the pythagoras theorem).

tan < BCE = √(7^2 + 3^2) / 2.

So the m < BCE = 75.3 degrees.

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3 years ago

I need help with these to question <br> #Math

Ganezh [65]

Answer:

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Step-by-step explanation:

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3 years ago