1) We have to calculate the first derivative:
y=2x²+2
y´=4x
2) the slope at the point x=3; will be f´(3);
f´(3)=4(3)=12
answer: the slope will be 12.
Answer:
A = 450(1.1)^x
Step-by-step explanation:
Since the animal decreases by 10% each year, we will use the compound interest formula to find the required equation
A = P(1+r)^t
P is the number of animals = 450
r is the rate = 10% = 0.1
t is the time = x
Substitute into the formula;
A = 450(1+0.1)^x
A = 450(1.1)^x
This gives the required expression
If a random variable has a standard deviation of σ and a sample of size n is collected for the variable, then the mean has a standard error given by σ/√n. So the standard error of the mean is calculated using the two quantities: standard deviation σ and the sample size n.
$8.77 will be the total cost after the 20% tip.
Step-by-step explanation:
3bx-3 = -3+12x
3bx=-3+3+12x
3bx=12x
3bx/3=12x/3
bx=4x
bx/x=4x/x
b=4