3 years ago

Which are factors of x2 - 4x – 5? Select two options.

Mathematics

2 answers:

faust18 [17]3 years ago

8 0

Answer:

(x – 5)

(x + 1)

Step-by-step explanation:

It's A and D on edg

Kay [80]3 years ago

5 0

Answer:

(x+1) (x−5)

I hope this helps

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Find the measure of ∠C if ∠A = 3 2 x + 20 ∠B = 7 2 x + 20 ∠C = 5 2 x + 40 ∠D = 3 2 x + 10 A) 65° B) 76° C) 95° D) 115°

Rudiy27

The sum of the angles of a quadrilateral is 360°.
$\left(\dfrac{3}{2}x+20\right)+\left(\dfrac{7}{2}x+20\right)+\left(\dfrac{5}{2}x+40\right)+\left(\dfrac{3}{2}x+10\right)=360\\\\9x+90=360\\\\x=\dfrac{270}{9}=30$

Given that x=30, the measure of ∠C is
∠C = (5/2)×30 +40 = 115

The appropriate choice is ...
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