What is the coefficient of the simplified expression? 3x+2-3x+7+5x

Mathematics

2 answers:

Alex777 [14]2 years ago

8 0

Answer:

5x+9 (im pretty sure but i could be wrong) but hope i helped

Step-by-step explanation:

KiRa [710]2 years ago

4 0

9+5x i think this is right 92% sure

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aivan3 [116]

Answer:

Thousandths place.

Step-by-step explanation:

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2 years ago

How many times do you need to divide by ten to get from 5947.7 to 5.9477 ?

mixas84 [53]

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3 years ago

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3 years ago

The ordered pairs (1,3), (2,9), (3,27), (4,81), and (5,243) represent a function. What is a rule that represents this function?

weqwewe [10]

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2 years ago

If GF is a midsegment of CDE, find CD. A. 3.4 B. 6.8 C. 13.6 D. 14

bogdanovich [222]

Answer:

Step-by-step explanation:

Triangle CGF and triangle CED are similar. Hence, the ratio of their corresponding sides are equal. Thus we can write:

$\frac{5x+4}{2x+3}=\frac{CD}{3x+0.8}$

We can now cross multiply and solve for CD:

$\frac{5x+4}{2x+3}=\frac{CD}{3x+0.8}\\(5x+4)(3x+0.8)=(2x+3)(CD)\\15x^2+4x+12x+3.2=(2x+3)(CD)\\15x^2+16x+3.2=(2x+3)(CD)\\CD=\frac{15x^2+16x+3.2}{2x+3}$

Since GF is a midsegment of CDE, CD is double of CF. So we can write:

$CD=2CF\\\frac{15x^2+16x+3.2}{2x+3}=2(3x+0.8)\\\frac{15x^2+16x+3.2}{2x+3}=6x+1.6\\15x^2+16x+3.2=(6x+1.6)(2x+3)\\15x^2+16x+3.2=12x^2+18x+3.2x+4.8\\15x^2+16x+3.2=12x^2+21.2x+4.8\\3x^2-5.2x-1.6=0$