<span>Angle 7 and 5 are vertical angles, so they're equal.
Angles 7 and 8 are supplementary, so they have to add up to 180.
2x + 15 + 3x = 180
Solve for x, then plug it into the expression for angle 7 to get you answer</span>
Answer:
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Step-by-step explanation:
Volume of a cube is Side to the third power ( S^3)
S = 3.2 meters
Volume = 3.2^3
Volume = 32.768 cubic meters (cm^3)
You may need to round the answer.. The problem doesn't say how many decimal places are needed.
Answer:
Step-by-step explanation:
Q1
Q2
- b) sin = opposite/hypotenuse
Q3
- Cos A = 0.1908
- A = arccos 0.1908
- A = 79° ⇒ Option c)
Q4
- tan A = 16/19
- A = arctan 16/19
- A = 40° ⇒ Option b)
First you would plug in the 9 for x, then you would try to solve for y
