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nasty-shy [4]
3 years ago
8

What is the factored form of x^2 -4x-12

Mathematics
1 answer:
denis-greek [22]3 years ago
8 0

How about this?

(x - 6) x (x + 2)


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LeAnn wants to giftwrap a present she got for her little brother. How many square inches of giftwrap will be needed to cover a b
Crazy boy [7]
Just find the surface area. 5*7=35, but 35*2=7<span>0</span>, because the top and bottom. Then do 7*3*2=42, for 2 parallel sides, and then 3*5*2=30. Now add 70+30+42=142 square inches. There's your answer.
7 0
3 years ago
M^ 2 + m − 90 factorize
laiz [17]

Answer:

(m+10)(m-9)

Step-by-step explanation:

To factor this equation we want to find two numbers that multiply to -90 but also add/subtract to 1.

Those two numbers are 10 and -9 (10×-9=-90, 10-9=1)

5 0
3 years ago
Read 2 more answers
What is the formula for ANOVA
Sergio039 [100]
P = 3
n = 5
N = 15
<span><span><span>x </span><span>¯ </span></span> </span> = 16
<span><span>SST</span> </span>  = <span><span>∑n(x−<span><span>x </span><span>¯ </span></span><span><span>) </span><span>2 </span></span></span> </span>
<span><span>SST</span> </span> = <span><span>5(12−16<span><span>) </span><span>2 </span></span>+5(16−16<span><span>) </span><span>2 </span></span>+11(20−16<span><span>) </span><span>2 </span></span></span> </span>
= 160
<span><span>MST</span> </span> = <span><span><span><span>SST</span><span>p−1</span> </span> </span> </span>
<span><span>MST</span> </span> = <span><span><span>160<span>3−1</span> </span> </span> </span>
= 80
<span><span>SSE</span> </span> = <span><span>∑(n−1)<span><span>S </span><span>2 </span></span></span> </span>
SSE = 4*4 + 4*1 + 4*16
= 84
<span><span>MSE</span> </span> = <span><span><span><span>SSE</span><span>N−p</span> </span> </span> </span>
<span><span>MSE</span> </span> = <span><span><span>84<span>15−3</span> </span> </span> </span>
MSE = 7
<span>F </span> = <span><span><span><span>MST</span><span>MSE</span> </span> </span> </span>
<span>F </span> = <span><span><span>807 </span> </span> </span>
= 11.429
 

8 0
3 years ago
Which of the sets shown includes the elements of set Z that are both odd numbers and multiples of 7?
vesna_86 [32]

Answer:

B. {-21.-7. 7. 21)

Step-by-step explanation:

The set made up of odd numbers and multiples of 7 is given as;

       {-21.-7. 7. 21)

Multiples of 7 are usually those numbers where 7 is  factor.

Odd numbers are numbers that cannot be divide by 2.

 So, the most fitting answer is B.

4 0
3 years ago
What’s the area of 2 4/5 and 2 4/5
cricket20 [7]

Answer:

aww this was the day before my birthday

3 0
3 years ago
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