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stiv31 [10]
3 years ago
5

Factorize m²-2mn+n²-9r​

Mathematics
1 answer:
san4es73 [151]3 years ago
3 0

Answer:

(m-n)^{2}-9r

Step-by-step explanation:

m²-2mn+n²-9r​

(m-n)^{2}-9r

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a train goes 20% farther than an older train in the same amount of time. During the time it takes the other train to go 200 mile
MakcuM [25]

Answer:

240 miles

Step-by-step explanation:

To solve this we need to write an equation. For this problem let <u>d be the distance traveled</u>. We know that the new train (being much more modern than poor old Thomas who is long retired) can go 20% further. To show this we will take 20% of 200 and then add that to the original distance.

Our equation would look something like this:

d=200+(20%·200)

[one more little note: to find percentage take your percent and convert it into a decimal 20%=0.2)

d=200+(0.2·200)

d=200+40

<u>d=240</u>

4 0
3 years ago
You buy tires for $150 per tire. You want to replace all four tires The dealership
a_sh-v [17]

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Step-by-step explanation:

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7 0
3 years ago
∆ABC =~ ∆DEF
earnstyle [38]

Answer:

angle E

Step-by-step explanation:

YOYOU CAN CUT BOTH OF THEM AND PLACE IT IN TOP OF EACH OTHER

3 0
3 years ago
Read 2 more answers
Let F: R → R be defined by f(x) = x”. Show that f'is one-to-one and onto.​
Brrunno [24]

Answer:

both

Step-by-step explanation:

3 0
2 years ago
Alexandria purchased a computer on sale. The original price was $1200. The sale price was 5/6 of the original price. how much di
Vaselesa [24]
I believe you ment to say sale price but I hope this helps you understand your question. The original price was 1200, and if it were 5/6 on sale (this method works for all questions like this) you would do 1200 ÷ 6 = 200 x 5 = $1000.
7 0
3 years ago
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