vertical angles are equal
7x+28 = 5x+22
subtract 5x from each side
2x +28 =22
subtract28 from each side
2x =-6
x = -3
angle a
7x+28
7(-3) +28
-21+28
7
Angle A =7
Answer:
( x+3 )² = 7
expand ( x+3 )² : x²+6x+9
x²+6x+9=7
x²+6x+2=0
use a scientific calculator casio mode setup click no 5 , then click 3 input the equation
a = 1
b = 6
c = 2
answer : x = -3+square root 7 or x = -3-square root 7
Answer:
1 to 125
Step-by-step explanation:
in other words it is multiplied by 125
Answer:
Costs are <u>changing</u> at the rate of <u>$588</u> per month at this production level.
Step-by-step explanation:
From the question, we have:
C = 0.3X^2 + 8,000 ........................ (1)
Differentiating equation (1) with respect to time, t, we have:
dC/dt = (0.3 * 2) X (dX/dt)....................... (2)
Where;
X = 70
dX/dt = 14
Substituting this into equation (2), we have:
dC/dt = (0.3 * 2) * 70 * 14
dC/dt = 588
This implies that costs are <u>changing</u> at the rate of <u>$588</u> per month at this production level.