Answer:
positive
Step-by-step explanation:
Answer:
here lets make it easy for you
An expression is a problem WITHOUT an Equal sign
An equation is a problem WITH an Equal sign
Answer: 60 gallons
Step-by-step explanation:
Given: Dimension of room = 4ft by 8ft
The height of ceiling =10 feet
The surface area of walls in a room which painter will paint= 
Since, A painter needs to cover the walls of four rooms in two coats of paint.
Then, the total area he need to paint =
If each gallon of paint covers 32 square feet.
Then, The amount of paint he needs=
Answer:
a = 5
b = 12
c = 13
Step-by-step explanation:
a^2+b^2=c^2
b-a=7(b=a+7)
c=a+8
Then, substitute
a^2+((a+7)*(a+7))=c^2
a^2+a^2+7a+7a+49=c^2
2a^2+14a+49=c^2
Because c = a+8
2a^2+14a+49=(a+8)(a+8)
2a^2+14a+49=a^2+16a+64
a^2-2a=15
a^2-2a-15=0
(a-5)(a+3)=0
a = 5,-3
a = 5(a side cannot be negative)
Plug in a=5 to the other equations to get
a = 5, b = 12, c = 13
Hope it helps <3
I think it’s C cuz I took this too
