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Setler79 [48]
3 years ago
7

( 10 x 4 + 3 x 2 − 5 x + 4 ) + ( 7 x 5 − 5 x 4 + 2 x − 9 ) Add/subtract the polynomial

Mathematics
1 answer:
Allisa [31]3 years ago
6 0

Answer:

78

Step-by-step explanation:

I say 78 because ( 10×4+3×2-5+4)+(7×5-5×4+2×9= 78 there you go hope this helps

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Please help me....I really need help!!
scoundrel [369]

\dfrac{c^2-4}{6c^4+15c^3}\div\dfrac{c^2+4c+4}{12c^3+30c^2}=\dfrac{c^2-2^2}{3c^3(2c+5)}\div\dfrac{c^2+2(c)(2)+2^2}{6c^2(2c+5)}\\\\_{\text{use}\ a^2-b^2=(a-b)(a+b)\ \text{and}\ (a+b)^2=a^2+2ab+b^2}\\\\=\dfrac{(c-2)(c+2)}{3c^3(2c+5)}\cdot\dfrac{6c^2(2c+5)}{(c+2)^2}=\dfrac{(c-2)}{c}\cdot\dfrac{2}{(c+2)}=\boxed{\dfrac{2(c-2)}{c(c+2)}}

6 0
3 years ago
Which is the best estimate of the correlation coefficient for the scatter plot?
leva [86]

The best estimate for this correlation would be B) 0.9.

We can see that the number is constantly going up, which would throw out the D answer.

We can also see that for every time the x goes up 1, the y goes up a little less than one. We can see that in the ordered pairs that exist on the graph such as (3, 2), (8, 6) and (2.1, 1.9).

Since the y values are just lower than the x, the correlation would be just under one. Therefore, 0.9 is an accurate estimation.

7 0
3 years ago
Read 2 more answers
Solve | X-4| < 3 and graph the solution​
Westkost [7]

Answer:

Add 4 to both sides

x<7

Step-by-step explanation:

3 0
3 years ago
12. (2v^3 - v + 8) + (-v^3 + v - 3)<br><br> 14. (4h^3 + 3h + 1) - (-5h^3 + 6h - 2)
Lana71 [14]
12. On addition, you can just combine like terms.
2v^3+(-v^3)=v^3
-v+v cancels each other out
8+(-3)=5
So you have v^3+5

14 On subtraction, you have to remember to distribute the negative sign so after you do that you have:
4h^3+3h+1+5h^3-6h+2
Then you can combine like terms
4h^3+5h^3=9h^3
3h-6h=-3h
1+2=3
So you end up with:
9h^3-3h+3

Hope that helps and feel free to ask any questions.
7 0
3 years ago
John, Sam &amp; Rob were playing cards. John scored x points,Sam scored 3 fewer than John. Rob scored twice Sam's points. togeth
Lostsunrise [7]

Answer:  2x-6

Work Shown:

john = x

sam = x-3 since he scored 3 fewer than john

rob = 2*(sam) = 2(x-3) = 2*x-2*3 = 2x-6

7 0
2 years ago
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