I'll only show you one. Try the rest yourself.
1:
x - 4 = 9
Add 4 to both sides,
x-4+4 = 9+4
x = 13
I’m gonna guess C sorry if it’s wrong
V = 20 cm ^3
multiply 6 cm by 5 cm by 2/3 cm and your answer is 20cm^3
Answer:
-0.899
Step-by-step explanation:
In the 4th quadrant, the sine is negative and the cosine is positive. The sine is ...
sin(-arccos(0.437)) ≈ -0.899
_____
You can also use the trig identity ...
sin(x) = -√(1 -cos(x)²) = -√(1 -.190969) = -√.809031 ≈ -0.89946150557
The sine is about -0.899.
Slope: - 2/3
Y - Intercept: 2
Hope this helps! :)