Problem 1
Answer: Direct variation; k = 1/4
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Explanation:
We can rewrite the given equation y = x/4 into y = (1/4)x. Then note how it's in the form y = kx. In this case, k = 1/4. In decimal form, this is k = 0.25
All direct variation equations are in the form y = kx. The value of k is the constant of variation.
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Problem 2
Answer: Inverse variation; k = 9
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Explanation:
The equation 9/y = x rearranges to xy = 9.
We can then solve for y to get y = 9/x
This is in the form y = k/x, where k = 9
All inverse variation equations are in the form y = k/x, with k as the constant of variation.
Answer:
It's x = -1.5
Step-by-step explanation:
Answer:
<ABC = 30°
Step-by-step explanation:
<ABC + <CBD = 90 <em><u>[Complementary angles add up to 90°]</u></em>
x+7+2x+14 = 90
3x + 21 = 90
3x = 90-21
3x = 69
<em>Dividing both sides by 3</em>
x = 23
Now
<ABC = 23+7
<ABC = 30°
Answer:
Step-by-step explanation:
street never meet
Answer:1 and 5
Step-by-step explanation: