The circle shown has a radius of 4 cm.
1 answer:
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Answer:
Step-by-step explanation:
Given expression,
= √(4×8)×√(4×7)×√3×√(3×√2)
= √4×√8×√4×√7×√3×√3×√2 ( because √(m×n)=√m×√n)
=√4×√4×√8×√2×√7×√3×√3
=4×√(4×2)×√2×√7×3
=4×√4×√2×√2×√7×3
=4×2×2×√7×3
=48√7
Thus,=
<h3>Answer: Choice C</h3>
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Explanation:
The x coordinate of the preimage point Q is x = 6.
The x coordinate of the image point Q' is x = 21.
The ratio of image over preimage is 21/6 = (3*7)/(3*2) = 7/2
You'll get this same value if you do the same steps with the y coordinates.
Therefore, the scale factor is 7/2 and the dilation rule is
Note: 7/2 = 3.5