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nata0808 [166]
3 years ago
7

What’s the measure of A

Mathematics
1 answer:
jeka943 years ago
8 0

Answer:Angle A is equal to 113

Step-by-step explanation:

If two angles are vertical, that would make them equal to each other.

7x-20=6x-1

Add on to both sides

7x-19=6x

Subtract Seven from both sides

-19=-x

Divide by negative one to get rid of the negative

19=x

Then plug x into the equation 7(19)-20

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Answer:

see explanation

Step-by-step explanation:

(a)

Given

x² + 5x + 6

Consider the factors of the constant term ( + 6) which sum to give the coefficient of the x- term ( + 5)

The factors are 3 and 2, since

3 × 2 = 6 and 3 + 2 = 5, hence

x² + 5x + 6 = (x + 3)(x + 2) ← in factored form

(b)

To solve

x² + 5x + 6 = 0 ← use the factored form, that is

(x + 3)(x + 2) = 0

Equate each factor to zero and solve for x

x + 3 = 0 ⇒ x = - 3

x + 2 = 0 ⇒ x = - 2

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3 years ago
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saul85 [17]

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