9514 1404 393
Answer:
a) $540 cost to paint
b) 72000 liters to fill
Step-by-step explanation:
Relevant formulas are ...
P = 2(L +W) . . . . perimeter of a rectangle of length L and width W
A = LW . . . . . . area of a rectangle of length L and width W
V = LWH . . . volume of a cuboid of length L, width W, and height H
__
a) The total painted area is the area of the pool walls plus the area of the pool bottom. The wall area is the product of pool perimeter and wall height. The bottom area is the product of pool length and width.
A = PH + LW = 2(L +W)H +LW
A = 2(8 m +6 m)(1.5 m) + (8 m)(6 m) = 42 m² +48 m² = 90 m²
At $6 per square meter, the cost of painting the pool is ...
($6 /m²)(90 m²) = $540 . . . . cost to paint the pool
__
b) The volume in liters is best figured using the dimensions in decimeters.
V = (80 dm)(60 dm)(15 dm) = 72000 dm³ = 72000 L
72000 liters will be needed to fill the pool.
Answer:
See below
Step-by-step explanation:
The value in the absolute brackets | x-b | can be negative or positive but the result is a positive number....
so you can have this
x-b = c <u> OR </u> x-b = -c which will often result in two solutions for x
Answer:
B
Step-by-step explanation:
Climate happens over a long period of time.
Weather varies day to day.
Ex: South Texas has a hot humid summer (climate)
Ex: It is 89 degrees in California today (weather)
Number 41 is letter c I think tell me if it helps you
False. Positive numbers are actually located to the right of zero.