3 years ago

Which expression is equivalent to -1?

Mathematics

1 answer:

creativ13 [48]3 years ago

7 0

Hello,
Answer B

If x≠y then
$\dfrac{x-y}{-x+y}=\dfrac{x-y}{-(x-y)}=-1$

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Factor the greatest common factor from the polynomial 3x^2 + 6x -9

ryzh [129]

Answer:

$3(x+3)(x -1)$

Step-by-step explanation:

$3x^2 + 6x -9$

All the terms in this polynomial are divisible by 3. Factor 3 out of this polynomial:

$= 3(x^2 + 2x -3)$

Now, factor inside the parentheses by grouping:

$= 3(x^2 -1x+3x -3)$

We knew to split the +2x up into -1x and 3x because -1 and 3 multiply to get -3, which is the last value in the polynomial.

$= 3(x(x -1)+3(x -1))\\= 3(x+3)(x -1)$

Therefore, the final factored polynomial is $3(x+3)(x -1)$ .

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2 years ago

To make 1 1/2 ozen muffins a recipe uses 3 1/2 cups of flour how many cups of flour is needed for every dozen muffins made

Ahat [919]

Answer:

the answer is 2 1/3 or There is 2\frack{11}{14}\ cups needed to make every dozen of muffins.

Step-by-step explanation:

Hope this helps:)

3 0

2 years ago

Read 2 more answers

If you roll a fair six-sided die and a fair four-sided die, what is the probability that neither die shows a 1?

Masja [62]

For the first die, 5 out of 6 are not 1.
That is 5/6.
For the second die, 3 out of 4 are not 1.
That is 3/4.
Multiply 5/6 by 3/4 to get the probability.
5/6 x 3/4 = 20/72
Simplify once to get 10/36.
Do it again to get 5/18.
In decimal form it is 0.2777 and in percent form it is 27.77%.
Hope this helps!

3 0

3 years ago

ONE HUNDRED POINTS

Over [174]

Answer:

See Below.

Step-by-step explanation:

We are given that ∠A = ∠D, and we want to prove that ΔACB ~ ΔDCE.

Statements: Reasons:

$1) \text{ $\angle A=\angle D$}$ $\text{Given}$