Answer:
t=-3.7
Step-by-step explanation:
5 (t+3)=-3.5
solving the bracket we have;
5t+15=-3.5
collect like terms
5t=-3.5-15
5t=-18.5
divide both sides by 5;
t=-3.7
The first step to finding the derivative is to take any exponent in the function and bring it down, multiplying it times the coefficient. We bring the 2 down from the top and multiply it by the 2 in front of the x. Then, we reduce the exponent by 1. The final derivative of that term is 2*(2)x1, or 4x.
Answer:
The answer is: y = -3x + 10
Step-by-step explanation:
Given point: (4, -2)
Given slope: m = -3
Use the point slope form of the equation and substitute:
y - y1 = m(x - x1)
y - (-2) = -3(x - 4)
y + 2 = -3x + 12
y = -3x + 10
Proof:
f(4) = -3(4) + 10
f(4) = -12 + 10
= -2, giving the point (4, -2)
Hope this helps! Have an Awesome Day!! :-)
Answer:
x =10
Step-by-step explanation:
30:12 is a 2.5 ratio so the smaller one is 2.5x smaller so 25/x = 2.5 or 25/2.5 = x = 10
Answer:
D
Step-by-step explanation:
4x + 7
this is exactly, 1:1, what the sentence said.
the product of 4 and a number = 4x
is increased by 7 = 4x + 7