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sukhopar [10]
2 years ago
13

Simplify and find value. a 3x^3−x^3+5x^3−9x^3 if x=−1

Mathematics
2 answers:
Snowcat [4.5K]2 years ago
7 0

Answer:

the answer is 2

Step-by-step explanation:

so when you simplify this problem you have to put (-1) in parentheses and then you multiply each number by itself and if it's an addition you add it.

balandron [24]2 years ago
4 0

Answer:

I think it is 2

Sorry if I got it wrong

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bazaltina [42]

Answer:

Letter A.

Step-by-step explanation:

0 is not divisible, so the last the last two alternatives are impossible.

The second one doesn't work, so I'd stick to letter A.

6 0
2 years ago
training for a cycle race in the first week if I was 195 miles in the second we can manage is 243 Miles what is the percentage i
Ivahew [28]

Answer:

24.61%

Step-by-step explanation:

The distance covered in first week = 195 miles

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We need to find the percentage increase in distance​. It can be calculated as follows :

\%=\dfrac{243-195}{195}\times 100\\\\=24.61\%

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4 0
3 years ago
XD Plzzzzzz do 2 slides (4 problems)
Leya [2.2K]

Answer:

Slide 1:

1. Solution = (-3,2)

<em>y = 2x - 1</em>

<em>y = 3/2x + 6</em>

2. No solution

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<em>y = -4/2x - 5</em>

Slide 2:

3. Solution = (1, -6) ONE SOLUTION

4. Solution = (-4, -1) ONE SOLUTION

p.s i attached the graphs for problems 3 and 4. The first picture is for problem 3 and the second picture is for problem 4

I really hope this helped :)

6 0
3 years ago
Find the measure of angle C in the triangle below. (The figure is not drawn to scale.)
alisha [4.7K]
2x+4x-4=80
6x-4=80
6x=84
84/6=14
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Hope this helps.
6 0
2 years ago
Daniel earns $3.18 in 3<br> days how much money<br> will he earn in 7 days?
coldgirl [10]

Answer:

$7.42

Step-by-step explanation:

1. divide $3.18 by 3 (it equals $1.06)

2. multiply $1.06 by 7 (it equals $7.42)

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