3 years ago

The length of a rectangle is four times the width. If the area of the rectangle is 36

Mathematics

1 answer:

Pavel [41]3 years ago

8 0

Answer:

36÷12=3

12×3=36

Length is 12

Width is 3

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In parallelogram ABCD measure angle A=(2x) and measure angle B=(5x+5). what are the measures of the angles of the parallelogram

iragen [17]

Opposite angles are equal, so we know that C=2x and D=5x+5 as well.

The sum of the interior angles of any quadrilateral is 360, so we have

$2(2x+5x+5)=2(7x+5)=360 \iff 7x+5=180 \iff 7x=175 \iff x=25$

So, the measures of the angles are

$2x=50,\quad 5x+5=130$

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3 years ago

A windshield wiper turns through an angle of 150°. The top of the blade traces the are with a 20-inch radius. How long is the

aev [14]

Answer:

Step-by-step explanation:

Arc length is given by the formula:

$\displaystyle s=2\pi r\frac{\theta}{360^\circ}$

Where r is the radius and θ is the central angle, in degrees.

The windshield wiper has a radius of 20 inches and a central angle of 150°. Hence:

$\displaystyle s=2\pi (20)\left(\frac{150}{360}\right)$

Use a calculator:

$\displaystyle s=\frac{50}{3}\pi \approx52.36\text{ inches}$

Our answer is A.

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3 years ago

Select all the values of x from this list that make the inequality FOR POINTS!

denis23 [38]

The answer would be A D E

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3 years ago

What is the square root of 450

RUDIKE [14]

Answer:

$15\sqrt{2}$ or 21.2132

Step-by-step explanation:

$\sqrt{450}$

$\sqrt{15^{2} }$ (root of a product is equal to the product of the roots of each factor)

$\sqrt{15^{2} } \sqrt{2}$ (simplify)

$15\sqrt{2}$ or ≈ 21.2132

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4 years ago

Read 2 more answers

What is the value of 17-2(5-3)

Shkiper50 [21]

Answer:

Step-by-step explanation:

17-10+6

7+6=13

hope it helps

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3 years ago