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Ierofanga [76]
3 years ago
9

A right angle is complementary. true or false

Mathematics
1 answer:
r-ruslan [8.4K]3 years ago
6 0
True. Complementary angles are 90 degrees.
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13 in
lilavasa [31]

Answer:

19.105 in if c is the hypotenuse

5.196 in if c is a leg

Step-by-step explanation:

The Pythagorean theorem is used for this.

If c is the hypotenuse, ...

... c² = 13² + 14² = 365

... c = √365 ≈ 19.105 . . . . in

_____

If c is a leg, ...

... 14² = 13² + c²

... c² = 196 -169 = 27

... c = √27 ≈ 5.196 . . . . in

7 0
4 years ago
A chemist is using 347 milliliters of a solution of acid and water. If 16.3 percent of the solution is acid, how many millileter
Katyanochek1 [597]
56.561 Milliliters

How:
347*.162 (Remember, percents are fractions)
=56.561

4 0
3 years ago
Read 2 more answers
Ou have traveled 25 miles in 2 minutes and come to a standstill. What was your initial velocity?
Illusion [34]
If you traveled 25 miles in 2 minutes, your average speed was 25 miles per 2 minutes or 750 miles per hour. If your rate of deceleration was constant, your initial speed was two times 750 miles per hour or 1500 mph. 

<span>I do not have enough information to determine your initial velocity because I don't know what direction you were going, and velocity is speed with direction.</span>
4 0
3 years ago
Find the degree of this polynomial<br><br> 9u2 + 8u
d1i1m1o1n [39]

Answer:

2

Step-by-step explanation:

9u^2 + 8u

The degree is the highest power  since it has a single variable

The highest power is 2

Degree 2

8 0
3 years ago
The ratio of the number of boys to girls is 5:7 if there are 600 studens in school how many girls are there
Art [367]

Answer:

There would be 350 girls in the school.

Step-by-step explanation:

We can find this by creating two proportions. the first fraction would be the number of girls out in the sample:

7/12

The second part would be the amount of girls in the whole school. We can set the girls as x since we do not know.

x/600

Now we can set the two equal to each other and cross multiply.

7/12 = x/600

600*7 = 12*x

4200 = 12x

350 = x

8 0
3 years ago
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