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Maurinko [17]
3 years ago
8

Find the sum of the terms.

Mathematics
1 answer:
kow [346]3 years ago
5 0

Answer:

C

Step-by-step explanation:

Given

\frac{x}{x^2+3x+2} + \frac{3}{x+1} ← factor the denominator of first fraction

= \frac{x}{(x+1)(x+2)} + \frac{3}{x+1}

Multiply the numerator/ denominator of second fraction by (x + 2)

= \frac{x}{(x+1)(x+2)} + \frac{3(x+2)}{(x+1)(x+2)}

The denominators are now common, so add the numerators leaving the denominator, that is

= \frac{x+3x+6}{(x+1)(x+2)}

= \frac{4x+6}{(x+1)(x+2)} → with numerator 4x + 6 → C

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If EF = x + 5, DC = 2x + 4, and AB = 2x + 2. Find EF.<br><br>​
bonufazy [111]

Answer:

B *second one down.

Step-by-step explanation:

EF = 1/2(AB + CD)

x+5 = 1/2 (2x + 2 + 2x+4)   Combine the like terms on the right.

x+5 = 1/2 (4x + 6)                Remove the brackets.

x+5 = 1/2*4x + 1/2*6

x+5 = 2x + 3                       Subtract x from both sides

5 = 2x-x + 3

5 = x + 3                            Subtract 3 from both sides

5-3 = x

x = 2

EF = x + 5

EF = 2 + 5

EF = 7

The answer is B

3 0
3 years ago
Can someone help me with this problem :)
Elodia [21]
if they’re separate triangles then x would be 8 considering the triangle further away has a patterned measurement
6 0
3 years ago
How would I solve 3+x=9?
kotegsom [21]

Answer:

x=6

Step-by-step explanation:

3+x=9

-3    -3

x=6

5 0
3 years ago
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Solve the equation 4=t/2.5
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the answer would be 10 because you have to times by 2.5 on both sides to get t on its own.

4 × 2.5 is 10

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