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3 years ago

9

Two figures are similar. One is 18 inches tall and the second is two feet tall.What is the scale factor. Not a multiple choice q

uestion

1 answer:

sladkih [1.3K]3 years ago

3 0

Answer:

3:4

Step-by-step explanation:

Compare the heights: 18 in and 24 in.

Then find the scale factor through division: 18/24 = 3/4 or 3:4

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Using the slope formula, find the slope of the line through the given points.

BabaBlast [244]

Answer:

-2

Step-by-step explanation:

Slope = (4-8) / (9-7) = -4/2 = -2

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2 years ago

Math Activity #2<br>The number of the day is 178.25<br>• Write this number in word form:

Nady [450]

Answer:

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3 years ago

Read 2 more answers

Subtract seven over eight minus two over three

Stells [14]

Answer:

5/24

Step-by-step explanation:

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3 years ago

Show your work with long division please

Naya [18.7K]

Answer:

<h3> __</h3><h3>0.63</h3>

Step-by-step explanation:

7/11 = no, add 0

70/11 = 6, so 0.6, remainder is 4, add 0

40/11 = 3, so 0.03, remainder is 7, add 0

70/11 = 6... and it goes on

<h3>The answer is 0.63 bar notation on both 6 and 3</h3>

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3 years ago

10. Simplify the rational expression by rationalizing the denominator. 3 sqrt 160/sqrt 1350x A) 2 sqrt 15x/15x B) 3 sqrt 160/135

Viefleur [7K]

The simplified expression by rationalizing the denominator is (C) $\frac{4 \sqrt{15x} }{15x}$ .

First we must simplify the expression:
$\frac{3 \sqrt{160} }{\sqrt{1350x} } = \frac{12 \sqrt{10} }{15 \sqrt{6x} } = \frac{4 \sqrt{10} }{5 \sqrt{6x} }$

Then we factor the rational parts and cancel it out:
$\frac{4 \sqrt{2} \sqrt{5} }{5 \sqrt{2} \sqrt{3x} } = \frac{4\sqrt{5} }{5\sqrt{3x} }$

Then we rationalize the expression:
$\frac{4\sqrt{5} }{5\sqrt{3x} } * \frac{\sqrt{3x} }{\sqrt{3x} } = \frac{4 \sqrt{15x} }{5*3x} = \frac{4 \sqrt{15x} }{15x}$

<span>Finally, the simplified expression by rationalizing the denominator is (C) $\frac{4 \sqrt{15x} }{15x}$ .</span>

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3 years ago