She would have 6 or 7 lessons 130 divided by 20 = 6.5
Answer:
x = -1
Step-by-step explanation:
y = 5 is a horizontal line
It's perpendicular would be a vertical line of the form:
x = a
Since it passes through (-1,-3)
a = -1
Hence line is: x = -1
Answer:
If you are using slope intercept it is incorrect
Step-by-step explanation:
For the first part y is 2 so using y=Mx+b it’s 2=-6-5 which is not correct
Since Sarah’s age is 2x of Bob’s age (which is 42) Sarah is 84.
Answer:
Minimum unit cost = 5,858
Step-by-step explanation:
Given the function : C(x)=x^2−520x+73458
To find the minimum unit cost :
Take the derivative of C(x) with respect to x
dC/dx = 2x - 520
Set = 0
2x - 520
2x = 520
x = 260
To minimize unit cost, 260 engines must be produced
Hence, minimum unit cost will be :
C(x)=x^2−520x+73458
Put x = 260
C(260) = 260^2−520(260) + 73458
= 5,858
