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laiz [17]
2 years ago
5

Can someone help, i think its B but i dont think thats right.

Mathematics
1 answer:
suter [353]2 years ago
7 0
It looks right to me
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What pair of factors of -45 has a<br> sum of 4?
damaskus [11]

Answer:

9 and -5

Step-by-step explanation:

9*-5=-45

9+-5=4

5 0
2 years ago
Read 2 more answers
Hey, can I please get some help with this? It shouldn’t be too hard, thanks!
Fynjy0 [20]

Answer:

  • (x -3)(x+3)(2x +1)
  • (x -1)(x +1)(x +3)
  • (2x -1)(2x +1)(x -4)

Step-by-step explanation:

A) 2x³ +x² -18x -9 = x²(2x +1) -9(2x +1) = (x² -9)(2x +1) = (x -3)(x+3)(2x +1)

__

B) x³ +3x² -x -3 = x²(x +3) -1(x +3) = (x² -1)(x +3) = (x -1)(x +1)(x +3)

__

C) 4x³ -16x² -x +4 = 4x²(x -4) -1(x -4) = (4x² -1)(x -4) = (2x -1)(2x +1)(x -4)

_____

In each case, the third-level factoring mentioned in step 4 is the factoring of the difference of squares: a² -b² = (a -b)(a +b).

_____

The step-by-step is exactly what you need to do. It is simply a matter of following those instructions. You do have to be able to recognize the common factors of a pair of terms. That will be the GCF of the numbers and the least powers of the common variables.

7 0
3 years ago
What is the area of the figure? The diagram is not drawn to scale.
Veronika [31]
The picture in the attached figure

we know that
the figure is a parallelogram 
the area of parallelogram=base*height
in this problem
base=34 in
height=35 in
so
area=34*35----> area=1190 in²

the answer is
<span>A. 1,190 in^2</span>

4 0
3 years ago
Find X, last two anwsers are 4 and 8
IgorLugansk [536]

Answer:

9

Step-by-step explanation:

8X+4=360-108-80-96

8X+4=76

8X=76-4

8X=72

X=72/8

X=9

8 0
2 years ago
A gas can is filled at the rate of 320 cubic inches per minute. The can is 10 inches long, 8 inches wide, and 12 inches high. Ho
elena-14-01-66 [18.8K]

Solution:

The gas can is filled at the rate of 320 cubic inches per minute.

The can is 10 inches long, 8 inches wide, and 12 inches high.

So volume of the can=10 in*8 in *12 in

\text{Volume of can }=960  \ in^3\\

Time required to fill the can=\frac{960}{320}=3  \ minutes\\

Hence Time required to fill the can =3 minutes.

6 0
3 years ago
Read 2 more answers
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