Point H shows 45 because 6.7 multiplied by each other equals 45 and 6.7 on the line is point H
Answer:
3.14 cm²/min
Step-by-step explanation:
rate of increasing of radius, dr/dt = 0.01 cm/min
r = 50 cm
Area of plate, A = πr²
rate of increase of area
dA/dt = 2πr dr/dt
dA/dt = 2 x 3.14 x 50 x 0.01
dA/dt = 3.14 cm²/min
Thus, the increase of rate of area is 3.14 cm²/min.
The answer for ''4x = 5x - 12'' would be x = 12.
4x - 5x = 12 (subtract 5x from both sides)
-x = -12 (simplify 4x - 5x to -x)
x = -12 ( multiply both sides by -1) .
For the 2nd one ''10p + 5 = 18p - 6/2''
The answer is 1 not those choices
10p + 5 = 18p - 3
5 = 18p - 3 - 10p
5 = 8p - 3
5 + 3 = 8p
8 = 8p
1 = p
p = 1.
