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Kaylis [27]
3 years ago
8

Question: What is the complementary angel of 31 degrees? A.97 B.67 C.57 D.87

Mathematics
1 answer:
Alona [7]3 years ago
6 0
The complement of 31° is the angle that when added to 31° forms a right angle (90° ).
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Which one of the following does not represent a proportional relationship?
Tamiku [17]

Answer:

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Step-by-step explanation:

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3 years ago
On a photo, the Christmas tree is 17 in. Long and 10 in. Wide. The scale factor is 1/18. Find the actual height of the Christmas
tino4ka555 [31]
The actual height is 306 inches by 10 inches. In simple terms, it is 25 1/2 ft tall and 15 ft wide. 
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3 years ago
√108<br><img src="https://tex.z-dn.net/?f=9%20%5Ctimes%20%5Cfrac%7B13%7D%7B20%7D%20" id="TexFormula1" title="9 \times \frac{13}{
ki77a [65]
I'm assuming your allowed to use a calculator for this? That's what I would do.
\sqrt{108}  = 10.39
To go about the fraction, take the whole number and times it by the denominator, then add in the numerator to create a new fraction(a whole one not mixed). Then simply divide the numerator by the denominator.
9 \times 20 = 180
180 + 13 = 193
193 is the new numerator and the new whole fraction is this and dividing it out gives you,
\frac{193}{20}  = 9.65
For the third one, just input it into a calculator,
2\pi + 3.4 = 9.68
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Step-by-step explanation:

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