Cold air transfers heat energy to warm air.
x = the number of feet of fence
y = the total cost of the fence and gate
43x + 128 = y
[fence costs $43 per feet(x) plus the cost of the gate(128) equals the total cost of the fence and gate(y)]
Answer:
x =12
Step-by-step explanation:
The two angles add to 90 degrees
4x+4 + 5x-22 = 90
Combine like terms
9x - 18 = 90
Add 18 to each side
9x -18+18 = 90+18
9x = 108
Divide each side by 9
9x/9 = 108/9
x =12
Answer:
Machine A makes 432 on Monday. Machine 2 makes 520 parts on monday. 432+520=952
Step-by-step explanation:
Answer:
<u>417.4ft^2</u>
Step-by-step explanation:
Surface area of a cone = πr(r+√r²+h²)
r is the radius
h is the height
Substitute
Surface area of a cone = π(5)(5+√5²+21²)
Surface area of a cone = πr(5+√25+441)
Surface area of a cone = π(5)(5+21.59)
Surface area of a cone = 3.14*5*26.59
Surface area of a cone <u>= 417.4ft^2</u>
<u>Hence the surface area of the cone is 417.4ft^2</u>
