Answer:
Step-by-step explanation:
an equation of this tangent is : y = f'(4)(x-a)+f(4)
a = f'(4)
f(x) = - x²
a=4
f'(x) = -2x
f'(4) = -2(4) = -8
f(4) = -(4)² = -16
so : y = - 8 (x-4)-16
y = - 8x +16
Answer:
3460
Step-by-step explanation:
Answer:
It will take ≈5 hours (5.278)
Step-by-step explanation:
First we need to find how many number she counts in one hour. We know she counts 60 every one minute and there are 60 minutes in an hour. 60x60=3600
Now we divide 19,000 by 3600 to find how many hours it will take
19000/3600=5.278
It will take ≈5 hours (5.278)
Answer:
donald can buy 2
Step-by-step explanation:
price of a shirt = $45÷3
=15
=30÷2=15
Answer:
Y=4x+4 is y4 and x 1 on the graph and 1x and 1y
Y= 4x+2 is 2x 0y and 6x and 1x 6y
Step-by-step explanation: