Answer:
, or in this case, 
Step-by-step explanation:
Assuming that Justine's score is represented by 
and Meagan's score is represented by 
, we know that will always be the opposite of .
To represent opposite, we put a negative sign before the variable.
This makes the current number, even if it's negative, the opposite value.
Let's test it out.
Since Justine's score is -7, substituting it into the equation makes it . We know that two negatives make a positive, so 
.
Now let's assume Justine's score is 7. Plugging it into the equation, we get 
. That's the same thing as 
, and -1 times 7 is -7.
Hope this helped!
Sqrt(5u + 2) = sqrt(3u + 14)
Square both sides to clear the square root.
5u + 2 = 3u + 14
subtract 3u from both siides
2u + 2 = 14
subtract 2 from both sides
2u = 12
divide both sides by 2
u = 6
When you square a square root you MUST check the solution.
sqrt(5*6 + 2) = sqrt(3*6 + 14)
sqrt(32) = sqrt(32)
Answer:
y = -3x - 4
Step-by-step explanation:
x - y - 2 = 4x + 2
x - y - 2 + y = 4x + 2 + y
x - 2 = 4x + 2 + y
x - 2 - 4x - 2 = 4x + 2 + y - 4x - 2
-3x - 4 = y
so y = -3x - 4
Answer:
1. 81
2. 4 (square root of) 25^3
3. 30 (square root of) 10
6-3=3, so m=3. Easy as pie
