Answer:
k = 4
Step-by-step explanation:
-9 +8k = 7+4k
Subtract 4k from each side
-9 + 4k = 7
Add 9 to each side
4k = 16
Divide by 4
k = 4
Plug in the value you got for k:
-9 + 8(4) ? 7 + 4(4)
-9 + 32 ? 7 + 16
23 ? 23
23 = 23
To find the mean you add up all the numbers then divide the answer by the amount of numbers there are
in this case we add 28+ 18+ 19+ 18+ 17 then divide by 5
THE MEAN IS 20!!!
-HAVE A NICE DAY!!!
Answer:
104 + 3(90.50)
Step-by-step explanation:
Always do what's inside the parenthesis first.
PEMDAS
(-4h+2)(3h+7)
= -12h^2 - 28h + 6h +14
= -12h^2 - 22h +14 ;D
