Answer:
x = -8
y = -3
Step-by-step explanation:
So first you're going to want to get x or y by itself using elimination or substitution. I used elimination to get x by itself.
You can multiply the second equation (2x + 2y = -22) by -2 so you can eliminate the y's. When you multiply it, you get -4x - 4y = 44
Then, you can add -3x + 4y = 12 and -4x - 4y = 44. The y's cancel out to leave -7x = 56. Divide both sides by -7 to get x = -8.
Now, you can plug in -8 for x in either one of the equations. I plugged it into the second equation to make it 2(-8) + 2y = -22.
2 · -8 = -16.
-16 + 2y = -22. Add 16 to both sides to get 2y = -6. Divide both sides by to get y = -3.
Hope this helps! :)
Answer:
divide circumference by pi 3.14
divide by 2
it's 11
pls brainliest
First, find the height of the pyramid using the volume formula.
Then use the Pythagorean theorem to find the slant height.
V = (1/3)Ah
48 = (1/3)(6^2)h
144 = 36h
h = 4
Since the side of the base is 6 in., half the side is 3 in.
The height of the pyramid is 4 in.
Call the slant height S.
3^2 + 4^2 = S^2
9 + 16 = S^2
25 = S^2
S = 5
Answer: The slant height is 5 in.
Answer:
60
Step-by-step explanation:
The radius of Earth is 6,378.1 kilometers. That means we divide that with 384,000 kilometers
Step 1: Plug them into the division:
384,000 ÷ 6,378.1
That makes 60.206...
Which means we have to....
Step 2: Simplify to the nearest integer.
Since an integer cannot be a decimal, it is 60.
