Answer:
Factoring
Step-by-step explanation:
x^2 + 7x = x(x + 7) = 0
So
x = 0 or x = -7
4 solutions:
<span><span> x = 3
</span><span> x = 1/3 = 0.333
</span><span> x = -7/2 = -3.500
</span><span> x = 1
</span></span>
Answer:
∠3 is 70°
Step-by-step explanation:
∠1 is 50° since it is across from another 50° angle
and then you use the equation x+25+2x+50=180 to find x
x then equals 35°
you then use the alternate interior angle theorem to say that ∠3 is 2x, or 70°
Answer:
311.04 and 373.248
Step-by-step explanation: