3 years ago

When point e (-7, 2) is rotated 90º counterclockwise about the origin, it becomes point e' (-2, -7)?

1 answer:

7 0

Yes the point(-7, 2) rotated 90<span>º counterclockwise is (-2, -7).
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serious [3.7K]

Answer:

Step-by-step explanation:

Given the trigonometry function as shown sin W = 0.79, to get W, the following steps must be followed.

Step 1: Take the arcsin of both sides of the equation

$sin^{-1}(sinW) = sin^{-1}0.79\\W = sin^{-1}0.79$

Step 2: Use a calculator to get the resulting value of W

$W = 49.46^{0}$

$W = 49.5^{0}$ (to nearest tenth of a degree)

This gives the acute angle needed.

Note that acute angle are angles that are less than 90°

8 0

3 years ago

ra1l [238]

4/7 of his money = $48

1/7 of his money = $48 ÷ 4 = $12

7/7 of his money = $12 x 7 = $84

Answer: $84

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3 years ago

strojnjashka [21]

Answer:

2 + (3 + 4) = (2 + 3) + 4 ⇒2+7 = 5+4.

Step-by-step explanation:

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3 years ago

GrogVix [38]

The equation can be (3450-1000)<span>÷7=350.</span>

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3 years ago

natali 33 [55]

I feel like it’s 180 dregrees, good luck!

3 0

3 years ago