Answer:
D
Step-by-step explanation:
Using the sine ratio in the right triangle
noting that sin45° = 
← exact value
sin45° = 
= 
Multiply both sides by h, then
h × = 8
Multiply both sides by 
h = 8 → D
Answer:
y ≤ x + 1; y ≤ 1
Step-by-step explanation:
The horizontal line has the form y = b. Since it is an inequality with a solid line, it will be y ≥ b or y ≤ b. Here b is the y-intercept which is 1. So the equation is y≤1 or y≥ 1.
The solid diagonal line has a y-intercept at 1 and a slope of 1. So the equation is y ≥ x + 1 or y ≤ x + 1.
The solution which has the right combination is y ≤ x + 1; y ≤ 1.
Here are the steps
put it into y=mx+b 4y=-5x+20
to isolate y divide both sides by y=-5/4+5
to find the xi
xi is when y=0 so plug it in to the equation 4y=-5x+20 4(0)=-5x+20
0=-5x+20 subtract 20 from each side -20=-5x the negatives cancel out 20=5x
to isolate x divide each side by 5 x=20/5
20/5=4
Answers:
m=-5/4
yi=5
xi=4
Answer:
13.0 inches
Step-by-step explanation:
