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2 years ago

If the coordinates of a pre-image are (x, y), which motion rule represents a counterclockwise rotation of 90° about the origin?

Mathematics

1 answer:

soldier1979 [14.2K]2 years ago

5 0

Answer:

What is the angle of rotation for this counterclockwise rotation about the origin?

answer:

270°

Step-by-step explanation:

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Pls help I'm bad at math v.v<br><br> Lines m and n are parallel.

Eva8 [605]

Answer:

The measure of angle 1 is 55.

Step-by-step explanation:

The top angle= 75 because of the vertical angle theorem

The right angle= 50 because of the alternate exterior angle theorem

75+50=125

There are 180 degrees in a triangle so the angle has to equal 55

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3 years ago

An important proportion that the ancient Greeks used was the ______

Lubov Fominskaja [6]

Evaluation. Is an proportion that the Greeks used.

6 0

3 years ago

4(−3x+8)=−16 Which value is the solution to the equation below?

Aleks04 [339]

Answer:

I'm 99.9% sure that x=4

Step-by-step explanation:

3 0

3 years ago

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The measure of each interior angle of a regular 100-gon is (3x + 26.4).<br>What is the value of x?

Sonbull [250]

$\bf \textit{sum of all interior angles in a polygon}\\\\ n\theta = 180(n-2)~~ \begin{cases} n = sides\\ \theta =angle~in\\ \qquad degrees\\[-0.5em] \hrulefill\\ n= 100 \end{cases}\implies \theta 100=180(100-2) \\\\\\ 100\theta = 180(98)\implies 100\theta =17640\implies \theta =\cfrac{17640}{100}\implies \theta = \cfrac{882}{5}$

which is pretty much just 176.4°, well, we also know that θ = 3x + 26.4

$\bf 176.4 = 3x + 26.4\implies 150 = 3x\implies \cfrac{150}{3}=x\implies 50=x$

5 0

3 years ago

Need help don’t like math help

ss7ja [257]

Answer:

50.65 grams

Step-by-step explanation:

7 0

3 years ago

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