Answer:
4x+50=90 being complementary
4x=90-50
x=40/4=10
value of x=10°
Answer:
209.8 miles to go.
Step-by-step explanation:
The musher is x miles from nome.
The ,usher is 4x miles from anchorage.
4x + x = 5x = total distance = 1049 miles.
if 5x = 1049, then 4x = 4/5 * 1049 = 839.2 miles.
if 5x = 1049, then x = 1/5 * 1049 = 209.8 miles.
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The musher has completed 839.2 miles and has 209.8 miles to go.
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A quadratic equation refers to an equation with the highest degree of 2. The first equation, 2(x+5)^2 + 8x + 5 + 6 = 0 is the only one with the highest degree of 2 (in (x+5)^2), so that is the quadratic.
(9x^2+10x+c) = (3x+b)^2
= 9x^2 + 6b x+ b^2
1) 6b= 10
b+ 5/3
2) c=b^2
c= (5/3) ^2
c= 25/9
(9x^2+10x+25/9)=(3x+5/3)^2
I hope this helps:)