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tangare [24]
3 years ago
12

1

Mathematics
1 answer:
Andrei [34K]3 years ago
6 0

C. complementary angles

Step-by-step explanation:

two angles are called complementary when their measures add to 90 degrees

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Annie walks 15 feet away from her house and places a mirror on the ground. She backs 4 feet away from the mirror so that she can
Firdavs [7]

Answer:

18.75 ft

Step-by-step explanation:

The given scenario can be drawn as shown in the following attachment.

Given that,

m\angle DCE=\angle ACB and m\angle DEC=\angle ABC=90^{\circ}

Therefore, \Delta ABC\sim \Delta DEC

\Rightarrow \dfrac{AB}{DE}=\dfrac{BC}{EC}

\Rightarrow \dfrac{AB}{5}=\dfrac{15}{4}

\Rightarrow AB=\dfrac{15\times 5}{4}=18.75 ft

AB is the height of the house.

7 0
3 years ago
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Write an expression that is equivalent to 3/5 (3y+15)<br> 3/5y +9, 3/5y+15, 9/5y+9, 9/5y + 15?
NISA [10]
Given the expression

\frac{3}{5} (3y+15)

The expression that is equivalent to the given expression is given by:

\frac{3}{5} (3y+15)= \frac{9}{5} y+ \frac{3}{5} (15)= \frac{9}{5} y+9
6 0
3 years ago
How do you find the fraction of 0.35
SOVA2 [1]

Answer:

\frac{7}{20}

Step-by-step explanation:

0.35 is the same as 35/100

which can be simplified to 7/20

4 0
2 years ago
Simplify (11+4)x10+5
AURORKA [14]

Answer:

155

Step-by-step explanation:

= (15)x10+5

= 150+5

= 155

4 0
3 years ago
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The nine cats in a pet store were weighed. Their weights (in pounds) are given below.
stepladder [879]
Range is 6 and the mode is 8
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