Simplify the second equation.
1/2y = -x + 1
Multiply both sides by 2
y = -2x + 2
Since both equations equal y you can set them equal to each other.
-2x + 2 = 3x - 1
Solve for X
-5x = -3
x = 3/5
Plug this into one of the equations.
3(3/5) - 1 = y
1.8 - 1 = y
y = .8
(0.6, 0.8)
Answer:
C) x = 1 / 2
Step-by-step explanation:
Formula for volume of a cube = a^3 ('a' to the power 3 or 'a' cubed)
a = side
Since volume = 1/8 ,
cube root of 1 / 8 will equal the side of the cube(which is 'x').
cube root of 1 / 8 = 1 / 2
answer = 1 / 2
(a) and (b) looks correct
(c) Here's how my table looks like:
15 -18 324
27 -6 36
28 -5 25
34 1 1
42 9 81
52 19 361
SUM 828
(d) Take the sum of 828 and divide it by 6 to get 138. Now take the square root of 138 to get the standard deviation:
sqrt(138) ≈ 11.75
Answer:
800+70+9 OR 8x100+7x10+9x1
Step-by-step explanation:
