1. As you can see in the figure attached, the trapezoid is formed by a rectangle and two equal right triangles. The base of each triangle is 4 feet and you know the lenght of the hypotenuse AD, therefore, you can calculate the height by applying the Pythagorean Theorem:

$h=\sqrt{(5ft)^{2}-(4ft)^{2}}=3ft$

2. Now, you can calculate the area with the following formula:

$A=(\frac{B+b}{2})h$

Where B is the longer base, b is the shorter base and h is the height.

Then:

$A=(\frac{15ft+7ft}{2})(3ft)=33ft^{2}$

8 0

4 years ago

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Anybody know how to solve this?

avanturin [10]

The answer would be A. I just did this yesterday. Do you want the steps?

4 0

3 years ago

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Which describes the correct procedure when converting a number from scientific notation to standard notation if the power of 10

jenyasd209 [6]

Answer:

A. Move the decimal point to the left

Step-by-step explanation:

Given that:

The scientific notation = 10⁻¹⁰

Let recall;

That the standard notation usually took the form of an inverse:

For example;

Let say 10⁻¹ will be $\dfrac{1}{10}$ in scientific notation;

SO, $\dfrac{1}{10} = 0.1$

Now; we are given 10⁻¹⁰ as a scientific notation,

To standard notation, we get:

$10^{-10} = \dfrac{1}{100}$

= 0.01

Thus, it is true to say that the decimal point will be moved to the left side when converting a number from scientific notation to standard notation if the power of 10 is -10.

4 0

3 years ago

A car is 100 inches long and 60 inches wide. There plan is for it to be 9 inches wide how long will the model be?

umka21 [38]

Answer:

Step-by-step explanation:

$\frac{x}{100} =\frac{9}{60} \\x=\frac{900}{60} =15 \\length=15~inch$

4 0

3 years ago