Just remember that 100% = 1.00 !
y = .78x
y = 108.5x
y = .946x
A straight angle measures 180 degrees.
Angle x and the 150-degree angle form a straight angle.
x + 150 = 180
x = 30
Angle z and the 100-degree angle form a straight angle.
z + 100 = 180
z = 80
Now you know the measures of two angles of the three angles of the triangle. The sum of the measures of the angle of a triangle equals 180 degrees.
x + y + z = 180
30 + y + 80 = 180
y + 110 = 180
y = 70
Answer: x = 30; y = 70; z = 80
The total area of the blades is the area of a triangle multiplied by 4.
We have then:

Where,
b: base of the blades
h: height of the blades
Substituting values we have:

Doing the calculation we have that the area of the blades is given by:

Answer:
The total area of the blades is:

Answer:
(b) For each hour that Michelle drove, she traveled an additional 50 miles.
Step-by-step explanation:
Given
---- start
--- end
Required
Which is true
(a): Journey = 6 hours
This is false, because:


---- 7 hours
(b): The average rate is 50 miles per hour
To do this, we calculate the slope (m) using:




This means that the rate is 50 miles driven in 1 hour.
<em>(b) is correct</em>
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<em>Others are incorrect</em>