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castortr0y [4]
3 years ago
5

What is the simplified expression for 3 a squared + 9 a b + 5 minus 4 a squared minus 4 a b + 3?

Mathematics
2 answers:
Oksanka [162]3 years ago
6 0

Answer:

Negative a squared + 5 a b + 8

Step-by-step explanation:

i took the test on edge

DENIUS [597]3 years ago
6 0

Answer: c

Step-by-step explanation:

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Answer:

Transformation include reflecting and dilating of points

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The points are given as:

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(a)The scale factor from PQR to P'Q'R

To do this, we make use of corresponding sides QR and Q'R

So, the scale factor (k) is:

k=q'r'/qr

k=2/8

k=1/4

(b) The coordinates of P"Q"R from reflecting P'Q'R' about the y-axis

The rule of this transformation is:

(x,y)--------(-x,y)

So, we have:

p"=(-1,0)

q"=(0,-1)

r"=(2,-1)

(c) Are triangle PQR and P"Q'R" congruent?

No they are not

This is so because

PQR was dilated by 1/4 to get P'Q'R

P'Q'R' and P"Q"R" are congruent

Hence,  PQR and P′'Q′'R′' are not congruent

Step-by-step explanation:

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Step-by-step explanation:

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Step-by-step explanation:

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3 years ago
Which of the following is NOT a tax collected by the federal government? A. sales tax B. excise tax C. income tax D. payroll tax
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