Answer: (-1, 2)
Step-by-step explanation:
<u>It's a counter-clockwise rotation, that means (x, y) changes to (y, -x).</u>
(-2, -1) ⇒ (-1, -(-2)) ⇒ (-1, 2)
<u>If it's a clockwise rotation, then (x, y) will change to (-y, x)</u>
(-2, -1) ⇒ (-(-1), -2) ⇒ (1, -2)
Answer: 1. (-5) 2. 24) 3. (-32)
Step-by-step explanation:
Substitute values and isolate v.
v^2 = u^2 + 2as
v^2 = 8^2 + 2(3)(19)
v^2 = 64 + 114
v^2 = 178
v = √178
v = about 13.3
Since the velocity isn’t exactly 13m/s, it cannot be A, so the correct answer is C.
The coefficient 3 means the length is 3 times the width ⇒ B
Step-by-step explanation:
The formula of the area of a rectangle is A = l × w, where
- l is the length of the rectangle
- w is the width of the rectangle
∵ The width of the rectangle is x
∴ w = x
∵ The length of the rectangle is 3x
∴ l = 3x
- That means the length of the rectangle is 3 time the width
because x × 3 = 3x
∴ Area of the rectangle is A = 3x × x
∵ x × x = x²
∵ 3 × 1 = 3
∴ A = 3x²
∴ The coefficient 3 means the length is three times the width
The coefficient 3 means the length is 3 times the width
Learn more:
You can learn more about the rectangles in brainly.com/question/6594923
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