Answer: all real numbers
Step-by-step explanation:
7a + 1 = 8a - a + 1
7a + 1 = 7a + 1
a = all real numbers
This problem deals the rate of change.
For the formula of the area of a circle, we differentiate both sides with respect to time t.
(A = πr^2) d/dt
dA/dt = 2πr (dr/dt)
Since we don't know yet the radius r, the area of a circle is given.
A = πr^2
r^2 = A/π = 4π/π
r^2 = 4
r = 2 cm
Therefore, the rate of the radius is
dA/dt = 2πr (dr/dt)
dr/dt = (dA/dt)/(2πr)
dr/dt = π/(2π*2)
dr/dt = 0.25 cm/min
Hope this helps.
Answer:
x + 25
Step-by-step explanation:
First, group terms that are similar:
4x - 3x + 15 + 10
Next subtract the similar terms:
4x - 3x = 1x
Simplify 1x:
1x = x
Add the other numbers:
15 + 10 = 25
Final product:
x + 25
Yes. Because 150x13=1950. then 1950+60=2610. so yes they met their goal
Answer:
x=25
Step-by-step explanation:
(2x+15) + X. 25 times 2 =50+15= 65+25= 90
