2 years ago

Can someone please help me solve this and if u have any questions text me don’t comment

Mathematics

1 answer:

Valentin [98]2 years ago

4 0

Answer:

x = 4

Step-by-step explanation:

Sum of angles (in degrees) in a triangle = 180

60 + 70 + 12x + 2 = 180

Add like terms

132 + 12x = 180

subtract 132 from both sides

12x = 48

divide both sides by 12

x = 4

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1 year ago

Tina is attempting to factor the expression 10x^2-13-3. In her first step, she rewrites the expression as 10x^2-10x-3x-3. Which

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ANSWER

B. The two middle coefficients add to the correct number but do not multiply to the correct number.

EXPLANATION

The given quadratic trinomial that Tina tries to factor is

$10 {x}^{2} - 13x - 3$

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$a{x}^{2} + bx + c$

we have a=10, b=-13 and c=-3

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