Answer:
2400 cm^2
Step-by-step explanation:
The surface area for a cube is just 6* area in one face (As there are 6 faces), so 6*20^2 = 6*20*20 = 2400 cm^2
Answer:
One solution (-1,2)
Step-by-step explanation:
Since these two linear equations have different slopes, different y-intercepts, and are indeed linear, these equations will only have one crossing when graphed, and hence one solution.
To find that solution, we can simply set the equations equal to each other.
y = -x + 1
y = 2x + 4
-x + 1 = 2x + 4
-3 = 3x
-1 = x
Now plug that value back into one of the equations:
y = -x + 1
y = -(-1) + 1
y = 2
So now you know the crossing for these two equations occurs at (-1,2).
Cheers.
The answer is 1/8 because he shaded obe out of eight parts
Answer: x=7/2, x=-3
Step-by-step explanation:
First lets do look at it without the absolute value marks
4x-1=13
4x=14
x=7/2
Now lets do the same but assume 13 is negative,
4x-1=-13
4x=-12
x=-3
Answer:
x-36=214
Step-by-step explanation:
If you already have the elevation of the bottom floor, you need to figure out how to get the top floor's elevation by taking 124 and 36 and adding them together. You will get 160. Then, take 160 and plug it in for x, leaving you with x-36=124 or 160-36=124. Hope this helps.
