Same is the answerso it means equal to
-84= -4b -4(-7 -8b)
⇒ -84= -4b -4* (-7) -4*(-8b) (distributive property)
⇒ -84= -4b+ 28+ 32b
⇒ -84 -28= 32b -4b
⇒ -112= 28b
⇒ -112/28= b (inverse operation)
⇒ -4= b
Final answer: b= -4
Answer:
63
Step-by-step explanation:
Find 10% of 90 which is 9 then multiply by 3 to get 30%. You get 27 them you ssubtract that from 90
Answer:
Step 3 they took the square root incorrectly
Step-by-step explanation:
5 ( x-2)^2 +6 = 86
Subtract 6 from each side
5 ( x-2)^2 +6 -6= 86-6
5 ( x-2)^2 = 80
Divide each side by 5
5 ( x-2)^2 /5 = 80/5
(x-2)^2 = 16
Take the square root of each side
sqrt((x-2)^2) = ±sqrt(16)
x-2 = ±4
We are going to continue the process; this time we are going to evaluate both functions at x=2.4:
For our first function:
For our second function:
To the nearest tenth:
We can conclude that the positive solution of our functions to the nearest tenth is
.