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3 years ago

Find the measure of the angle complementary to the given angle. mZy = 15°

Mathematics

1 answer:

yarga [219]3 years ago

4 0

Answer: 75 degrees

Step-by-step explanation:

The definition of a "complementary angle" is adding up to 90 degrees, and if one of the angles is 15 degrees, that angle measure and the unknown angle measure must add up to 90 degrees. To find the unknown, we subtract 15 from 90, and we get 75. Therefore, the answer is 75 degrees.

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Write an algebraic expression 3 more than twice a number

kati45 [8]

Answer:

2x+3

Step-by-step explanation:

Let x be the number

twice a number

3 more than

2x+3

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3 years ago

Help me solve this questions with steps please

Flauer [41]

Answer:

Step-by-step explanation:

Since the triangle is right use the tangent ratio to find x

tan22° = $\frac{opposite}{adjacent}$ = $\frac{203}{x}$

Multiply both sides by x

x × tan22° = 203 ( divide both sides by tan22° )

x = $\frac{203}{tan22}$ ≈ 502.5 m → B

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4 years ago

Write 0.05 as a fraction. A) 1 12 B) 1 15 Eliminate C) 1 18 D) 1 9

zheka24 [161]

$x=0.0\overline{5}\\\\x=0.0555...\qquad\text{multiply both sides by 10}\\\\10x=0.555...\qquad\text{multiply both sides by 10}\\\\100x=5.555...\\\\\text{Make the difference:}\\\\100x-10x=5.555...-0.555...\\\\90x=5\qquad\text{divide both sides by 90}\\\\x=\dfrac{5}{90}\\\\x=\dfrac{5:5}{90:5}\\\\x=\dfrac{1}{18}\\\\Answer:\ \boxed{0.0\overline{5}=\dfrac{1}{18}}\to\boxed{C)}$

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3 years ago

a circle has a center at (3,5) the point (3,8) is on the circle what is the circumference of the circle to the nearest tenth of

kogti [31]

You need to use the distance formula to find the radius of the circle.

$d = \sqrt{(x_2 - x_1)^2 + (y_2-y_1)^2} \\ \\ d = \sqrt{(3-3)^2 + (8-5)^2} \\ \\ d = \sqrt{0^2+3^2} \\ \\ d = \sqrt{9} = 3$

The radius is 3.

The circumference is $2 \pi r$

$= 6\pi \\ \\ =18.8$

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3 years ago

Im having trouble with this question... please help me.

kompoz [17]

Answer:

last option.

Step-by-step explanation:

See attached.

I'm not sure why you crossed out the last option, but it seems to be correct.

3 0

3 years ago

Read 2 more answers