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puteri [66]
3 years ago
9

Write the expression in factored form: m²-n²

Mathematics
2 answers:
gavmur [86]3 years ago
5 0
 difference of 2 squares

m^2 - n^2  = (m - n)(m + n)
mash [69]3 years ago
4 0
This expression is a difference of squares: x^2 - y^2 = (x + y)(x - y)

m^2 - n^2 = (m + n)(m - n)
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If a pump takes 60 minutes to circulate 25 gallons of water, how many minutes does it take to circulate 2.5 gallons of water?
Marizza181 [45]
It takes 6 minutes to circulate 2.5 gallons of water
8 0
3 years ago
25 students are learning how to make balloon animals. There are 194 balloons to be shared equally among the students. How many b
alexdok [17]
25 students
194 balloons

194/25 = 7.76
Each student gets 7 balloons, 7 x 25 = 175 balloons will be used
194 - 175 = 19 balloons remaining (Answer to part 1 of this question)

If each student needs 8 balloons
8 * 25 = 200
200 - 194 = 6 ballons needed (Answer to part 2 of this question)

We also could have found the answer to part 2 by saying that we had 19 balloons left over when the students each were given 7 balloons
Each student needs another 1 balloon = 25 balloons, 
We have 19 left over
25 - 19 = 6 balloons need to be purchased (we got the same answer both ways so it is very likely we have the correct answer)
6 0
3 years ago
P(x)=2x^3-11x^2+ax-40 if x+4 is a factor of this polynomial what is the value of a
Vika [28.1K]

Answer:

a = -86.

Step-by-step explanation:

By the Factor Theorem, if x + 4 is a factor then P(-4) = 0, so:

P(-4) = 2(-4)^3 - 11(-4)^2 + a(-4)- 40 = 0

-128 - 176 - 4a - 40 = 0

-4a = 128 +176 + 40

-4a = 344

a = -86.

3 0
3 years ago
What is the solution of -8/2y-8=5/y+4-7y+8/y2-16
omeli [17]
The answer would be -0.102564 repeating because if you do the math before dividing you would get -8/6.5/-1.5/-8

3 0
3 years ago
Solve 4 [5 (12+3)-2]-7 PLSSS HELP MEEE
viva [34]

Answer:

285

Step-by-step explanation:

4(5x15-2)-7

4(75-2)-7

4x73-7

292-7

285

3 0
3 years ago
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