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LenKa [72]
2 years ago
11

Write an equivalent expression for (2 m + 3) (m - 1)​

Mathematics
1 answer:
Dmitry [639]2 years ago
4 0

Answer:

2m^2-3m-9

Step-by-step explanation:

use FOIL

F-firsts

2m*m=2m^2

O-outer

2m*-3=-6m

I-inner

3*m=3m

L-lasts

3*-3=-9

2m^2-6m+3m-9\\\\-6m+3m=-3m\\\\2m^2-3m-9

(2m+3)(m-3)

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Bill worked 24 hours last week and earns $8.25 per hour. what is the total amount of money he earned
11Alexandr11 [23.1K]

Answer:

198

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3 0
2 years ago
Find the measure of the segment indicated.
julsineya [31]
Answer is QM = 18

You can find the length of QM by using Pythagorean theorem. See the attachment.

It is a quadrilateral with 4 equal congruent sides.

If SP = 30, so do the other 3 sides indicated by the tick marks on all 4 sides.

We will call side RQ = the hypotenuse
or side “c” = 30
We know RM is leg “b” = 24
Side “a” is our unknown QM

Our formula is
a^2 + b^2 = c^2

a^2 + 24^2 = 30^2

a^2 + 576 = 900

a^2 = 900 - 576

a^2 = 324

Take square root of both sides to solve a

a = 18

QM = 18

3 0
11 months ago
Rewrite x^2+12x+42 in the form (x+b)^2 +c
Rzqust [24]
This is completing the square:

(x^2+12x+36)+42-36

Answer: (x+6)^2 +6
6 0
2 years ago
The value of an antique chair is expected to increase by 3% every year. If the chair was bought for $1,020 in 2001, find its exp
castortr0y [4]
Hi there
The formula is
A=p (1+r)^t
A future value?
P present value 1020
R rate of increases 0.03
T time 2,015−2,001=14 years
So
A=1,020×(1+0.03)^(14)
A=1,542.8 round your answer to get
A=1543

Hope it helps
8 0
3 years ago
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