Math Answers

Terry is buying juice. He needs 3 L. A half liter of juice cost $2.39. A 250 mL container of juice c Play needs 3 L. A half liter of juice cost $2.39. A 250 mL container of juice costs $1.69.What should Terry buy so he gets 3 Liters at the lowest price? Explain

Cosx(tanx+sinxcotx) = sinx+cos^2x

The price of a company's share dropped by 3.00% by the end of the first year, down to $44.25. During the second year the price of the share dropped by $1.77.

a. What was the price of the share at the beginning of the first year?


b. What was the price of the share at the end of the second year?


c. What was the percent change in the price of the share over the two years?

Zachary's base salary is $1,450 per month and he gets paid commission on all sales that he makes over $20,000. Last month, he earned a total of $4,425 and made sales of $79,000.
a. What is the amount of sales eligible for commission?


b. What is the amount of commission earned last month?

c. What was his rate of commission?

d^2y/dx^2+3(dy/dx)+ 2y=1+3x+x^2

Suppose that X and Y have the following joint
probability function:
x
f(x, y) 2 4
1 0.10 0.15
y 3 0.20 0.30
5 0.10 0.15
(a) Find the expected value of g(X, Y ) = XY 2.
(b) Find μX and μY .

f(x) = 3x + 6, g(x) = 2x2

Find (fg)(x)

There are 100 persons and 100 plates
Rich one eat in 5 plates
Men with Service eat in 3 plates
And 3 poor eat in 1 plate then how many rich service and poor people are there

(D²+3DD'+2D'²)z=12xy

1) Find the result of the following integrals.
a) ∫▒〖(2+y)^2 dy〗
b) ∫▒(x²+x+1)/√x dx

2) Find the results of the following integrals by using Substitution rules.
a) ∫_0^1▒〖xe〗^(-x²) dx
b) ∫_0^1▒〖(e^z+1)/(e^z+z) dz〗
c) ∫▒〖dx/(ax+b)(a≠0)〗