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katrin [286]
2 years ago
3

Help me with this ques. (need solution and answer both) thanks so much <3

Mathematics
1 answer:
IRINA_888 [86]2 years ago
5 0

Answer:

1.) 27a^11 + 18a^9 -72a^7

2.) 6p^4q^3 - 10p^3q + 4p^2q3

Step-by-step explanation:

1.) Distribute and do the math

-9a^5 x (-3a^6) - 9a^5 X (-2a^4) - 9a^5 x 8a^2

27a^11 + 18a^9 -72a^7

2.)  Distribute and do the math

2pq^2q x 3p^2q^2 - sp^2q x 5p + 2p^2q x 2q^2

6p^4q^3 - 10p^3q + 4p^2q3

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Given that 4(n-5)+2=3(n-1),what is the value of n
Alina [70]
We'll first simplify both sides of the expression to get (simply using the distributive property):
4n-20+2=3n-3

Then, we can simplify a little bit:
4n-18 = 3n-3

To solve for n, we have to isolate it. Let's subtract 3n from both sides to further simplify it:
n-18 = -3

Then, add 18 to both sides to get the value of n:
n = 15

And that's your answer. If you have questions on how I got that, feel free to ask!
5 0
3 years ago
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Which of the following choices is a solution of the equation -x − 6 &lt; 2?
solniwko [45]

Answer:

A. -8

Step-by-step explanation:

-x-6 < 2

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Change < to > because of the negative x

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3 years ago
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an auto repair shop charges $25 an hour they say your muffler needs to be replaced for $65 it takes them 2.5 hours to fix your c
Levart [38]

Answer: $130.50

Step-by-step explanation:

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25+25+12.50=$62.50

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65plus62.50

Total= $130.50

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3 years ago
Z − 4 = 8<br> Solve for z.
nika2105 [10]

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Step-by-step explanation:

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Identify which of the following is not equivalent to 2 3/4.
mezya [45]

The figure that is not equivalent to 2¾ is 2¼ × 2½. That is option B.

<h3>Simplification of equivalent fractions</h3>

Simplification is a process that is used to make a fraction appear in its simplest forms.

The fraction given is = 2¾

The simplification of the fraction= 2^3/4 = 2

But simplification of 2¼ × 2½ is equal to;

2¼= 0.5

2½= 1

Therefore 2¾ is not equivalent to 2¼ × 2½ when simplified.

Learn more about fraction here:

brainly.com/question/78672

#SPJ

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2 years ago
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