Kellen

Given a normal distribution with µ = 101 and σ = 4 if you select a sample of n = 4,

There is a 67% chance that xbar is above what value

Let f be the function defined by f(x) = 3x2 + 6x - 10. Find the following.

f(a + 5)

f(5a)

f(a + h)

Let f(x) = 1/x and g(x) = 5x + 3.

Find the following.

1. f(x)/g(x)

2. f(g(x))

3. g(f(x))

f(x) = (7x + 5)/(9x^2 − 6x − 3)

Use the four-step process to find the slope of the tangent line to the graph of the given function at any point.

f(x) = -1/10 x^2

Step 1: f(x + h) =

Step 2: f(x + h) - f(x) =

Step 3: (f(x + h) - f(x))/h =

Step 4: f'\(x\) = lim_(h->0)(f(x + h) - f(x))/h =

1. Find the limit, if it exists. (If an answer does not exist, enter DNE.)

lim ((9 x^2 - 9 x)/x)

(x->0)

2.Find the limit, if it exists. (If an answer does not exist, enter DNE.)

lim ((25 - x^2)/(5 x^2 + x^3))

(x->-5)

I have been on birth control for about two years but when i ran out of pills last month, I wasnt able to pick them up for a week. So i started my new pack a week later than I should have. So should I expect my period to occur at my normal time, or when i take the placebo pills at the end of this month.

thanks!

1.A sample of assistant professors on the business faculty at state supported institutions in Ohio revealed the mean income to be $72,000 for 9 months with a standard deviation of $3,000. Using Chebyshev's Theorem, what proportion of the faculty earns more than $66,000 but less than $78,000?

2.A sample of the monthly amounts spent for food by families of four receiving food stamps approximates a symmetrical distribution. The sample mean is $150 and the standard deviation is $20. Using the Empirical Rule, about 95 percent of the monthly food expenditures are between what two amounts?

3.The distribution of a sample of the outside diameters of PVC gas pipes approximates a symmetrical, bell-shaped distribution. The arithmetic mean is 14.0 inches, and the standard deviation is 0.1 inches. About 68 percent of the outside diameters lie between what two amounts?

he consumption function in a certain economy is given by the equation below.

C(y) = 0.75y + 6

C(y) is the personal consumption expenditure, y is the disposable personal income, and both C(y) and y are measured in billions of dollars. Find the following. ~I know you plug 0,52,109 into the equation but once I do that I get stuck~

C(0) = ? billion dollars

C(52) = ? billion dollars

C(109)=? billion dollars

he consumption function in a certain economy is given by the equation below.

C(y) = 0.75y + 6

C(y) is the personal consumption expenditure, y is the disposable personal income, and both C(y) and y are measured in billions of dollars. Find the following.

C(0) = ? billion dollars

C(52) = ? billion dollars

C(109)=? billion dollars

Write the equation in the slope-intercept form.

6x − 7y + 35 = 0

Given the equation y = 7x − 2, answer the following questions.

(a) If x increases by 1 unit, what is the corresponding change in y?

(b) If x decreases by 5 units, what is the corresponding change in y?

[(8x^2 − 49xy − 49y^2) / (x^2y)] Divided by (7y − x)^2 / x^3y

Use the quadratic formula to solve the quadratic equation.

3x^2 + 12x + 11 = 0

Perform the indicated operations and simplify the expression.

((a + 5) / (3a)) plus [(b-7)/(5b)]

The markup on a used car was at least 35% of its current wholesale price. If the car was sold for $11,200, what was the maximum wholesale price? (Round your answer to the nearest cent.)

(The markup is on the wholesale price not on the price it is being sold for. so the current whole price + 35% of the current whole sale price = 11200) That was in the help section

The markup on a used car was at least 35% of its current wholesale price. If the car was sold for $11,200, what was the maximum wholesale price? (Round your answer to the nearest cent.)

Perform the indicated operations and simplify the expression.

[(8x^2 − 49xy − 49y^2) / (x^2y)] Divided by (7y − x)^2 / x^3y

ALSO,

Perform the indicated operations and simplify the expression.

(a + 5 / 3a) plus [(b-7)/(5b)]

x(cubed) + 6x(squared) − 7x

over

−6x(squared) − x + 7

I have been very constant on birth control but five days ago I had sex on my most fertile days and today i had light bleeding. What could be the reasoning for this?