Answer:
x = 1 and x = -1
Step-by-step explanation:
Next time, please separate the equations with a comma or semicolon. Thanks.
We can substitute 4x for y in the quadratic equation x^2 + y^2=17:
x² + (4x)²=17.
Then x² + 16x² = 17, or
17x² = 17, or x² = 1. There are two solutions: x = 1 and x = -1.
<span>supplementary of two angles whose sum is 180</span>
so
<span>∠1 + ∠2 = 180</span>
<span>3x + 2x−25 = 180</span>
5x - 25 = 180
5x = 180 +25
5x = 205
x =205/5
x =41
<span>answer is C)41
</span>
7 is ten times the value of 0.7
4:5 to 3:7 hope it helps!