Cos theta = 75/115
theta = cos^-1 (75/115)
theta = 49.2 degrees
Let's solve for x.
2x−9y=14
Step 1: Add 9y to both sides.
2x−9y+9y=14+9y
2x=9y+14
Step 2: Divide both sides by 2.
2x
/2
=
9y+14
/2
x=
9
/2
y+7
Answer:
D. y=5x+2
Step-by-step explanation:
The y int. is 2, and the slope is 5/1. If you plug that into a calculator, you can see the slope being steep.
Answer:
44%
Step-by-step explanation:
<u> 11 </u> = <u> x </u>
25 100
'percent' means <u>out of 100</u>
25 x 4 = 100
11 x 4 = 44
Note that
sin(30°) = 1/2
cos(30°) = √3/2
tan(30°) = 1/√3
cos(45°) = 1/√2
tan(45°) = 1
Therefore
5 sin²(30°) + cos²(45°) - 4 tan²(30°)
= 5*(1/4) + 1/2 - 4*(1/3)
= 5/12
= 0.4167
2 sin(30°) cos(30°) + tan(45°)
= 2(1/2)(√3/2) + 1
= 1.866
Answer: 0.223