3 years ago

Factor x3 – 4x2 + 7x – 28 by grouping. What is the resulting expression

Mathematics

1 answer:

Anni [7]3 years ago

7 0

Answer: Answer d

Step-by-step explanation:

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cricket20 [7]

Answer: yes because they both go to the 0 and has the same shape.

Step-by-step explanation: yes

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3 years ago

Simplify negative 2 and 1 over 9 – negative 4 and 1 over 3

iren2701 [21]

Ok to start you have to put

2+-1/9 - 4+-1/3

what exactly is the question because without the proper info. nobody is going to be able to figure it out.

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3 years ago

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2/5 0.5 is a equivalent number or pair

NemiM [27]

They are not equivalent because 2/5 is equal to .4.

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4 years ago

If x – 10 is a factor of x2 – 8x – 20, what is the other factor?

Svetach [21]

Answer:

The other factor is $(x+2)$

Step-by-step explanation:

we know that

$(x-a)(x-b)=x^{2}-xb-xa+ab$

$(x-a)(x-b)=x^{2}-(a+b)x+ab$

In this problem we have

$x^{2} -8x-20$

and

$a=10$ -----> because is a factor

substitute and solve for b

$x^{2} -8x-20=x^{2}-(10+b)x+10b$

$8=10+b\\b=-2$

Verify in the second equation

$-20=10b$ -----> $-20=10(-2)$ -----> $-20=-20$ --> is ok

The other factor is $(x+2)$

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3 years ago

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Lee needed to make full length curtains to fit from the top of the window to the floor. The wall beneath the window had the heig

worty [1.4K]

Add the 2 together
2 2/3 + 2 3/4 you need a common denominator to add fractions
2 8/12 + 2 9/12 = 4 17/12 =
5 5!12 feer

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3 years ago