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Nezavi [6.7K]
4 years ago
9

Simplify the expression. (5x2 - x - 7) + (2x2 + 3x + 4)

Mathematics
1 answer:
kifflom [539]4 years ago
5 0

Answer:

7x^2-2x-3

Step-by-step explanation:

First get rid of the parenthesis

5x^2-x-7+2x^2+3x+4

Next simplify the variables

7x^2-x-7+3x+4

7x^2-2x-7+4

7x^2-2x-3

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Answer:

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Step-by-step explanation:

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4 0
3 years ago
3f+2g=30 and f+2g=26
tatuchka [14]
3f + 2g = 30 . . .(1)
f + 2g = 26 . . . .(2)

(1) - (2) => 2f = 4 => f = 4/2 = 2

From (2), 2 + 2g = 26 => 2g = 26 - 2 = 24 => g = 24/2 = 12

Therefore, f = 2 and g = 12
7 0
3 years ago
In a basketball game Elena scored twice as many points as Tyler Tyler scores four points fewer than Noah and Noah scores three p
saveliy_v [14]

Full question:

In a basketball game, Elena scores twice as many points as Tyler. Tyler scores four points fewer than Noah, and Noah scores three times as many points as Mai. If Mai scores 5 points, how many points did Elena score? Explain your reasoning

Answer and explanation:

We start from known to unknown. We know that Mai scored 5 points and so we work from here.

Since Mai scored 5 points and Noah scored three times as many points then Noah's score = 3×5= 15 points

Since Tyler scored four points less than Noah, Noah's score= 15-4= 11 points

Finally Elena's score is twice that of Tyler hence Elena's score =2×11= 22 points

7 0
3 years ago
What can you conclude from the box-and-whisker plot?​
muminat

Answer:

that it is a cat :')

Step-by-step explanation:

remember, whisker = cat

3 0
3 years ago
P(A)=7/20,P(B)=3/5,P(A∩B)=21/100 ,P(A∪B)=?
satela [25.4K]

Answer:

P( A U B) = 37/50

Step-by-step explanation:

7/20+3/5+21/100

IF YOU NEED MORE HELP LMK

7 0
3 years ago
Read 2 more answers
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