First I'd expand the brackets so that you can re-simplify the values, so:
(2x + 3)(3x + 4)
6x^2 + 9x + 8x + 12
6x^2 + 17x + 12
The answer A. 2x(3x + 4) + 3(3x + 4) can be simplified the same way, with 6x^2 + 8x + 9x + 12, and so the answer is A. I hope this helps!

3 0

2 years ago

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11. In a sample of n=6, five individuals all have scores of X=10 and the sixth person has a score of x=16. What is the mean for

ahrayia [7]

Answer:

Step-by-step explanation:

Given that in a sample of n=6, five individuals all have scores of X=10 and the sixth person has a score of x=16

i.e. the data entries are

10,10,10,10,10,16

Sum = 66

No of items n = 6

Average = sum/no of entries

= $\frac{66}{6} \\=11$

Average is 11.

mean of this sample is 11

8 0

3 years ago

The volume of a cylinder is 405pl with a diameter of 18. Find the height

KatRina [158]

Answer:

the answer is 2.5 inches

8 0

3 years ago

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6.) -2x + y = -1 X Y -4 -3 -2 1 0

MrRa [10]

Answer:

Step-by-step explanation:

i ASSUME THE QUESTION IS TO DETERMINE Y?

Rearrange the equation to y = 2x - 1 and solve for each value of x

X Y

-4 -9

-3 -7

-2 -5

1 1

0 -1

7 0

2 years ago