Answer:
Step-by-step explanation:
Method 1: Using a calculator <em>instead</em> of the unit circle
The unit circle gives coordinates pairs for the <em>cos</em> and <em>sin</em> values at a certain angle. Therefore, if an angle is given, use a calculator to evaluate the functions at cos(angle) and sin(angle).
Method 2: Using the unit circle
Use the unit circle to locate the angle measure of 150° (or 5π/6 radians) and use the coordinate pair listed by the value (see attachment).
This coordinate pair is (-√3/2, 1/2).
You need to work out the area so
Area of a rectangle is l x b
So
A= l x b
A= 8 x 4
A= 32
Therefor 32 cubic feet of dirt is needed
Answer:
x = 159; y = 140
Step-by-step explanation:
a = 40
a + y = 180
y = 180 - 40
y = 140
b = 61
b = (180 - x) + a
61 = 180 - x + 40
x = 159
I think it’s B. 7.50+1.50x<_15
Answer:
$229
Step-by-step explanation:
Pay check = P
so
Total spent movie T = $13.74
T = 0.4 *0.15* P = $13.74
The 40% on the Movie Theatre spending is part of the 15% spending at the mall.
So 40% of 15% of the Pay Check = $13.74
P = $13.74 / (0.4*0.15) = 34.35/0.15 = 229
