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djverab [1.8K]
3 years ago
15

What number should be added to the expression x^2 + 2x to change it into a perfect square trinomial?

Mathematics
1 answer:
Firlakuza [10]3 years ago
8 0
The answer is (x+1)²= x²+2x+1
so x^2 + 2x must be added 1 to become  x²+2x+1=<span>(x+1)²</span>
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Answer:

Step-by-step explanation:

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basically if its divisible by 12 its divisible by 3

6 0
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Out of the 30 days in April, 3/5 of the days were sunny and clear. The rest of the days were either cloudy or contained some rai
Lelechka [254]

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3 years ago
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dezoksy [38]

Answer:

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Step-by-step explanation:

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7 0
3 years ago
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AB←→||CD←→. Find the measure of ∠BFG.
Colt1911 [192]

Answer:

Value of ∠ BFG = 135°

Step-by-step explanation:

Given:

AB || CD

∠ AFG = (3x + 15)°

∠ FGD = (5x - 5)°

Find:

∠ BFG

Computation:

We know that;

∠ AFG = ∠ FGD

3x + 15 = 5x - 5

3x - 5x = - 5 - 15

- 2x = - 20

2x = 20

x = 10

Value of ∠ AFG = 3x + 15

Value of ∠ AFG = 3(10) + 15

Value of ∠ AFG = 45°

∠ BFG = 180° - Value of ∠ AFG

∠ BFG = 180° - 45°

∠ BFG = 135°

Value of ∠ BFG = 135°

8 0
3 years ago
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Oksana_A [137]

Answer:

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Step-by-step explanation:

we know that he can paint 12 cars in 3 weeks.

that means that he can paint 4 cars per week.

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3 0
3 years ago
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