Substitute y=4x to the second equation:
x^2 + (4x)^2 = 17
x^2 + 16x^2 = 17
17x^2 = 17
x^2 = 17/17
x^2 = 1
x = 1 and -1
When x=1, y=4(1) = 4
When x=-1, y=4(-1) = -4
Thus the solutions would be (1,4) and (-1,-4). That would correspond to D. and A.
Answer: x=90° y=43°
Step-by-step explanation: Right away you may be able to tell that x is a right triangle, which is 90°. Now, look at the two small lines cutting through some of the triangle. That means the sides are congruent, and that the bottom two angles are the same. So if angle C is 47°, then so is D. A triangle has 180° in total. So since we already have 47° and 90°, subtract 47 and 90 from 180 to get angle y.
Answer:
$71.39
Step-by-step explanation:
Ⓗⓘ ⓣⓗⓔⓡⓔ
Well, 8.25%=0.0825
0.0825x$65.95=about $5.44
$65.95+$5.44=$71.39
(っ◔◡◔)っ ♥ Hope this helped! Have a great day! :) ♥
Answer:
How?
Step-by-step explanation:
Hi there!
80% of 40 games is 32 games AND 75% of 20 peaches is 15 peaches.
