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3 years ago

What multiplies to be -63 and adds up to be -2

Mathematics

1 answer:

Lyrx [107]3 years ago

5 0

-9x7 mutiplies to be -63, and add up to be -2.

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The length of CD is 12 units C’D’ is the image of CD under a dilation with a scale factor of n.Which of these are true?

Korvikt [17]

Answer: FIrst option, Fourth option and Fifth option.

Step-by-step explanation:

First it is important to know the definition of "Dilation".

A Dilation is defined as a transformation in which the Image (which is the figure obtained after the transformation) and the Pre-Image (this is the original figure, before the transformations) have the same shape, but their sizes are different.

If the length of CD is dilated with a scale factor of "n" and it is centered at the origin, the length C'D' will be:

$C'D'=nCD=(n)(12\ units)$

Therefore, knowing this, you can determine that:

1. If $n=\frac{3}{2}$ , you get:

$C'D'=(\frac{3}{2})(12\ units)=18\ units$

2. If $n=4$ , then the length of C'D' is:

$C'D'=(4)(12\ units)=48\ units$

3. If $n=8$ , then:

$C'D'=(8)(12\ units)=96\ units$

4. If $n=2$ , then, you get that the lenght of C'D' is:

$C'D'=(2)(12\ units)=24\ units$

5. If $n=\frac{3}{4}$ , the length of C'D' is the following:

$C'D'=(\frac{3}{4})(12\ units)=9\ units$

8 0

3 years ago

For a-d, choose Yes or No to tell whether 3 is the greatest common factor of the terms in each expression.

lina2011 [118]

Answer:

1. no

2. no

3. yes

4. no

Step-by-step explanation:

6 0

3 years ago

1. A school has 400 students. They all come to school by bus, and each bus carries the same number of students. How many student

podryga [215]

Answer:

4, I believe

Step-by-step explanation:

400 students

100 buses

400/100=4

7 0

3 years ago

Read 2 more answers

pls help me i don't get it plssssss https://s3.amazonaws.com/content.accelerate-ed.com/Elementary/docs/Math5/Module10Assignment3

UNO [17]

Answer:

I have a screenshot so here you go

Step-by-step explanation:

7 0

3 years ago

What number must you add to complete the square?<br> x2 + 8x = 11

notsponge [240]

Answer:

Step-by-step explanation:

The number to add on both sides to complete the square is the square of the numerical coefficient that accompanies the term in "x", divided by 2.

That is in our case: $(\frac{8}{2}) ^2 = 4^2=16$

Therefore:

$x^2+8x+16=11+16\\x^2+8x+16 = 27$

That way the left hand side of the equation becomes the perfect square of the binomial: (x+4).

You can also prove that such is correct by developing the square of the binomial:

$(x+4)^{2} = (x+4)(x+4)= x^2+4x+4x+16= x^2+8x+16$

8 0

3 years ago