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2 years ago

I was never taught how to do this... some one help me.

Mathematics

2 answers:

Tatiana [17]2 years ago

8 0

So cos means adjacent over hypotenuse which would be 15/17 and you can’t simplify it down farther so 15/17 is your final answer.

lys-0071 [83]2 years ago

6 0

$\cos X = \frac{\text{adjacent}}{\text{hypotenuse}} = \boxed{\frac{15}{17}}$

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professor190 [17]

9514 1404 393

Answer:

$1686.05

Step-by-step explanation:

The amount with compound interest is ...

A = P(1 +r/n)^(nt)

for principal P earning annual rate r compounded n times per year for t years.

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The balance after 3 years is $1686.05.

7 0

3 years ago

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Which equation represents a line that passes through the point (−2, 6) and is parallel to the line whose equation is 3x − 4y = 6

mart [117]

Method 1: Realize that the desired equation will look exactly the same as the given equation 3x − 4y = 6, except that the constant will be different.

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Then the new line is 3x - 4y = 30.

8 0

3 years ago

Concrete is poured to create a slab in the shape of a rectangular prism. The slab is 50 yards long, 1.5 yards wide, and 0.25 yar

Mice21 [21]

Answer:

Volume formula is to multiply all dimensions.

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Step-by-step explanation:

3 0

3 years ago

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2x=8 <br>so find the value of x

melisa1 [442]

Answer:

x = 4

Step-by-step explanation:

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6 0

3 years ago

Marcos purchased a sail boat for $56,900. He anticipates each year the boat will decrease in value by 8.1% from the previous yea

Varvara68 [4.7K]

Answer: $56,900\left( 0.919\right)^x$

Step-by-step explanation:

Given

Marcos purchased a sailboat for $\$56,900$

Each year the boat will decrease in value by $8.1\%$

After 1 year it is

$\Rightarrow 56,900-56,900\times 0.081\\\Rightarrow 56,900\left( 1-0.081\right)\\$

after another year it becomes

$\Rightarrow 56,900\left( 1-0.081\right)-56,900\left( 1-0.081\right)\times 0.081\\\Rightarrow 56,900\left( 1-0.081\right)\cdot \left( 1-0.081\right)\\\Rightarrow 56,900\left( 1-0.081\right)^2$

After $x$ years it is

$\Rightarrow 56,900\left( 1-0.081\right)^x$

$\Rightarrow 56,900\left( 0.919\right)^x$

5 0

3 years ago