3 years ago

Which pair of slopes could represent perpendicular lines?

Mathematics

1 answer:

Dmitry_Shevchenko [17]3 years ago

5 0

Answer:

1/2, 2/4

Step-by-step explanation:

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Figure a is dilated by a scale factor of 1/2 to form figure b. What is the length of x?

PIT_PIT [208]

Answer:

The correct option is 3. The value of x is 8 inches.

Step-by-step explanation:

It is given that Figure A is dilated by a scale factor of 1/2 to form Figure B. It means both figure are similar and corresponding sides of similar figures are proportional.

$\text{scale factor}=\frac{\text{Side of image}}{\text{Side of preimage}}$

$\frac{1}{2}=\frac{x}{16}$

Multiply both sides by 16.

$\frac{16}{2}=x$

$8=x$

Since scale factor is 1/2, so we can directly say that the side length of image is half of the corresponding side of preimage.

The length of x is 8 inches. Therefore the correct option is 3.

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3 years ago

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Forty-three girls went camping. The girls were able to choose to participate in karate and swimming. Twenty-one girls went swimm

horsena [70]

7 girls participated only in Karate.
21 + 8 = 29
29 + 7 = 36
36 + 6 = 43

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2 years ago

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Cos (A+B) =1/5<br>COS (A-B) = 3/5<br>Then find tan (A-B)

Soloha48 [4]

Answer:

tan (A-B) = ± 4/3

Step-by-step explanation:

COS (A-B) = 3/5

COS² (A-B) = (3/5)² = 9/25 = 1 - sin² (A-B)

sin² (A-B) = 1 - 9/25 = 16/25

sin (A-B) = ± 4/5

tan (A-B) = sin (A-B) / cos (A-B) = (± 4/5) / (3/5) = ± 4/3

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3 years ago

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Answer:

eight people drink 6 glasses of water

Step-by-step explanation:

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7 over 1

Step-by-step explanation:

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