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dimulka [17.4K]
3 years ago
11

Help

Mathematics
1 answer:
geniusboy [140]3 years ago
6 0

Answer:

1: 9 questions incorrect and 41 correct

2: There are a total of 35 students. 21 girls and 14 boys.

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60 in<br> 63 in<br> What is the length of the hypotenuse?<br> inches<br> Submit
saveliy_v [14]

Answer:

assuming 60 and 63 are the side lengths

87 in is the hypotenuse

Step-by-step explanation:

60^2 + 63^2 = x^2

5 0
2 years ago
What is the product?
fredd [130]

Answer:

\frac{4k + 2}{k^{2}-4 }  ×  \frac{k-2}{2k+1}   =  \frac{2}{k + 2}

Step-by-step explanation:

\frac{4k + 2}{k^{2}-4 }  ×  \frac{k-2}{2k+1}

To solve the above, we need to follow the steps below;

4k+2 can be factorize, so that;

4k +2 = 2 (2k + 1)

k² - 4  can also be be expanded, so that;

k² - 4 = (k-2)(k+2)

Lets replace  4k +2  by  2 (2k + 1)

and

k² - 4 by  (k-2)(k+2)   in the expression  given

\frac{4k + 2}{k^{2}-4 }  ×  \frac{k-2}{2k+1}

\frac{2(2k+ 1)}{(k-2)(k+2)}   ×  \frac{k-2}{2k+1}

(2k+1) at the numerator will cancel-out (2k+1) at the denominator, also (k-2) at the numerator will cancel-out (k-2) at the denominator,

So our expression becomes;  

\frac{2}{k + 2}

Therefore, \frac{4k + 2}{k^{2}-4 }  ×  \frac{k-2}{2k+1}   =  \frac{2}{k + 2}

3 0
3 years ago
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Which function is equivalent to Y=-cot(x)?<br>​
worty [1.4K]
I hope this helps you out

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3 years ago
If AC is parallel to DF, what is the measure, in degrees, of ∠ABD
Kamila [148]

Answer:

Yes it is parellell

Step-by-step explanation:

3 0
3 years ago
A flag is in the shape of a right triangle. The hypotenuse is 17 meters. The length of one leg is 7 meters less than the other l
vova2212 [387]
Somebody is answering it right now
6 0
2 years ago
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