Step-by-step explanation:
(x - 1)² = 50
Either x - 1 = +√50 or x - 1 = -√50.
Hence, x = +/-√50 + 1 = +/-(5√2) + 1.
Answer:
58 times 11 equals 638 then you divide and its 53.1
Step-by-step explanation:
Hello there! :D
So, if the surface area is 6s^2
Plug in the larger box.
6*6^2
6*36= 216
Surface area of larger box= 216
Smaller box:
6*3^2
6*9
54 <=== smaller box surface area
Now, divide the larger surface area by the smaller.
216/54= 4
It is four times larger than the smaller box.
I hope this helps!
~kaikers
Answer:
x = -4
Step-by-step explanation:
To make this easier to explain and easier to solve, we're going to first multiply the second equation of 9x-7y=-15 by -1 to make the y coefficient positive.
This results in -9x+7y=15.
When we line up the two equations on top of each other now, we'll see that both the first and second equations have opposite y coefficients, which is vital for elimination.
The next step is to add the second equation to the first one. Teachers may tell you to subtract, but I find it easier to add if you make the two y coefficients of negative value to each other.
4x-7y=5
+ -9x+7y=15
___________
-5x+0y=20, or just -5x=20, because you have successfully eliminated the y variable.
From there, you're going to solve like a normal equation (divide both sides by -5) toget you x=-4.
