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anastassius [24]
3 years ago
15

Which expression is equivalent to (3x-1) (-5x+6)?

Mathematics
1 answer:
Gnoma [55]3 years ago
8 0

Answer:

−15x2+23x−6

Step-by-step explanation:

(3x−1)(−5x+6)

=(3x+−1)(−5x+6)

=(3x)(−5x)+(3x)(6)+(−1)(−5x)+(−1)(6)

=−15x2+18x+5x−6

=−15x2+23x−6

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Which products result in a difference of squares? Check all that apply.
Amanda [17]

Answer:

2nd - (w - 5)(w + 5)

4th - (-4v - 9)(-4v + 9)

Step-by-step explanation:

1. The first option shows an expression multiplied by its opposite(x -1), so therefore, it does not show the difference of squares

2. The second option does show the difference of squares because it is in the form (a + b)(a - b)

3. The third option is just a square because the same expression is multiplied by itself.

4. The fourth option is the difference of squares because it is in the form (a + b)(a - b). a equals -4v and b equals 9 in this case.

5. The fifth option is not the difference of squares. No term in common in both expressions

6. The sixth option is just a square because the same expression is multiplied by itself.

In all, there are two options that are the difference of squares, the 2nd and 4th.

5 0
3 years ago
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ella [17]

Answer:

I think it is 3(x+1) not sure but try it(it is a graph answer)

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2 years ago
-6(a + 8)<br> I need help!
Yuliya22 [10]

Answer: I got -6a + 48

Step-by-step explanation:I distributed and I got negative 6a because when you distributed the variable goes with whatever number is before it and I got 48 because -6 multiplied by 8 you get positive 48 because the 8 is bigger then the negative 6 so I don't know if your teacher wants you to solve for the answer but like I said I got -6a + 48

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3 years ago
In Maryland, the sales tax is 6%. If you buy a shirt for $38, how much is the tax?
scoundrel [369]

Answer:

$2.28

38x.06

Brainlyest Pls

3 0
3 years ago
Find the probability that a data value picked at random from a normally distributed population will have a standard score that c
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P(z < 3)
From the normal distribution table,
P(z < 3) = 0.9987
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