A^2 + 3^2 = 5^2
a^2 + 9 = 25
a^2 = 16
a^2 = (square root)16
a = 4
Answer:
x = 17deg
Step-by-step explanation:
Let angle y be the unknown angle IN THE TRIANGLE.
Angle y = 180 - 90 - 73
= 17deg
Angle x = Angle y (Alternate angles on 2 parallel lines)
Angle x = 17 deg
First you have to figure out what each equation is. The straight horizontal line is dotted so it is < or >. It runs through y = 1 and the shading is above it so our inequality for that one is y > 1. The other line is on a slant so it has a slope and since it is solid, it will be

or

. The line goes through the origin, so the y-intercept is 0, and from that point, if we go up 2 and over 1 we find another point on the line. That means that the slope is 2/1 or 2. Since it goes through the origin, the equation for that line is y = 2x. But we need the inequality. It looks like the solutions to this line are those that are above it, as well. So

. Our solution, then, is the last choice above, d.
Answer:
23.28
Step-by-step explanation:

notice then, is clearly, -10, -12, -14, -16, -18 and so on.