The answer is either 20 or 12
Answer:
Step-by-step explanation:
Given
Required
x and y
Add both equations to eliminate y
Divide both sides by 6
Substitute in the first equation
Divide by -3
Answer:
2.4 hours
Step-by-step explanation:
I will do 9 only. You can do 11.
Question 9
sin(60) = x/8
sin(60)(8) = x
4•sqrt{3} = x
x^2 + y^2 = 8^2
(4•sqrt{3})^2 + y^2 = 64
16(3) + y^2 = 64
48 + y^2 = 64
y^2 = 64 - 48
y^2 = 16
sqrt{y^2} = sqrt{16}
y = 4
Do 11 the same way.
Answer: 1/6
Step-by-step explanation:
Because there's only one number that's greater than 5 on a numbered cube and that's '6'
