First thing you must do is square root both sides. This gives you:
1/3y + 2 = √121 which becomes 1/3y + 2 = 11 and 1/3y + 2 = - 11
This is because both 11 and - 11 when squared are equal to 121. So we must solve for both to find the solutions.
1/3y + 2 = 11
Subtract 2 from both sides to get 1/3y = 9
Now multiply both sides by 3 to isolate the variable y
3(1/3y) = 9(3) which becomes y = 27.
Now for the other equation 1/3y + 2 = - 11
Again, subtract 2 from both sides to get 1/3y = - 13
And multiply by 3 to isolate the variable y
3(1/3y) = - 13(3) which becomes y = - 39
Your answer: y = - 39, 27
Answer:
Step-by-step explanation:
A is certainly true. If you put 30 into your calculator, you get factions for the cube root and square root. True
B is true. 5^2 = 25 Twenty five is made up of 2 fives.
C is a perfect cube. 10 * 10 * 10 = 1000. But it is not a perfect square. False.
D 64 is a perfect cube. (It is also a perfect square).
E false 16 is a perfect square. It is not a perfect cube
True Statements
A B D
I'm pretty sure it would be d
Hope this helps!
A- Perpendicular lines have negative reciprocal slopes. Therefore a perpendicular line to 2x-8 will have a slope of -1/2. Once solved in slope intercept form, choice A shows a line of slope -2/4, equivalent to -1/2
Answer:math+way will give you the correct answer