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Question 1093061: A car rental agency charges $160 per week plus $0.35 per mile to rent a car. Express the weekly cost to rent the car,f, as a function of the number of miles driven during the week, x.
Solve the problem.
Click here to see answer by josmiceli(19441)

Question 1093064: The total cost in dollars for a certain company to produce x empty jars to be used by a jelly producer is given by the function C(x)=0.4x+33,000. Find C(80,000), the cost of producing 80,000 jars.
Click here to see answer by richwmiller(17219)

Question 1093120: Suppose that $1,245.8 is invested at 7.5% compounded continuously. How much is in the account after 16.8 years? Round your answer to the nearest cent.
Click here to see answer by greenestamps(13200)

Question 1093125: One tiny leak drips 3drops every second and each drop is 0.3ml.How much water will be wasted if you ignore the leak for one year
Click here to see answer by math_helper(2461)

Question 1093144: A labourer is paid N 5,400.00 per month. What is his total salary in 1 3/4 years?
Click here to see answer by Alan3354(69443)

Question 1093170: Please help!!!
Find the critical values,points of inflection and discuss the concavity of the graph of
f(x)=(x-1)^3(x+3)
and then sketch a neat graph of f,showing all the salient points.
Click here to see answer by Boreal(15235)

Question 1093222: Commonwealth Edison company's charge for electricity in January 2010 is 9.44� (cents) per kilowatt-hour. In addition, each monthly bill contains a customer charge of $12.55. If last year's bills ranged from a low of $76.27 to a high of $248.55, over what range did usage vary (in kilowatt-hours)?
Click here to see answer by josmiceli(19441)

Question 1093161: Please help!!
A plane flies horizontally at an altitude of 5km and passes directly over a tracking telescope on the ground.When the angle of elevation is π/3,this angle is decreasing at a rate of π/6 rad/min.How fast is the plane flying at that time?
Click here to see answer by addingup(3677)

Question 1093292: The equation V = -2000t + 20,000 describes the value in dollars of a certain model of car after it is t years old. If a car is worth $14,000, find the age of the car.

Click here to see answer by addingup(3677)

Question 1093283: Find the perimeter of a regular hexagon that is circumscribed by a circle with radius r = 11 m.
Select one:
a.
33 m
b.
66 m
c.
33√3 m
d.
66√3 m

Click here to see answer by Boreal(15235)

Question 1093254: An English teacher wants to make a theatrical presentation and asks her students for material to build the stage, she asked a student to carry 9.50 feet of blue ribbon. If the student knows that 1 foot is equal to .305 meters, how many centimeters should you order at the stationery?
Click here to see answer by Boreal(15235)

Question 1093432: Solve the system using the substitution method. Show work
X-4y=-65, y=-3x
Click here to see answer by ikleyn(52781)

Question 1093436: James invested some money at 5% interest. James also invested $⁢221 more than 2 times that amount at 7%. How much is invested at each rate if James receives $850.52 in interest after one year? (Round to two decimal places if necessary.)

Click here to see answer by josmiceli(19441)

Question 1093453: Your 1,360 kg car accelerates at 2.5 m/s^2 for 4 s.
What is the net force applied to produce this acceleration?
What is the car;s final velocity? (mi/hr)
How far does the car move during the acceleration? (in m and ft)

Click here to see answer by ikleyn(52781)

Question 1093488: The hypotenuse of a right triangle is 7 ft long. One leg is 1.4ft longer than the other leg. Find the length of the legs
Click here to see answer by josgarithmetic(39617)

Question 1093488: The hypotenuse of a right triangle is 7 ft long. One leg is 1.4ft longer than the other leg. Find the length of the legs
Click here to see answer by ikleyn(52781)

Question 1093452: A standard issue service pistol is the Beretta M9. It fires a 9 mm diameter round that has a mass of 8 gr. The standard muzzle velocity is 360 m/s. The barrel is 12.7 cm long.
A. How long does the bullet take to travel through the barrel after it is fired?
B. What is the acceleration of the bullet while it is in the barrel?
C. What is the force (N) applied to produce this acceleration?
Click here to see answer by ikleyn(52781)

Question 1093527: Determine if the function is one-to-one by noting the function family to which it belongs and mentally picturing the shape of its graph. y = 3x
Select one:
a. one-to-one
b. not one-to-one
Click here to see answer by ikleyn(52781)

Question 1093528: Determine if the function is one-to-one by noting the function family to which it belongs and mentally picturing the shape of its graph. y = 3
Select one:
a.not one-to-one
b. one-to-one
Click here to see answer by ikleyn(52781)

Question 1093538: How to find area under the standard normal curve which lies :-
a) to the left of z= .94
b) to the right of z=-0.65
c) to the right of z=1.76
d) between z=-0.34 and 0.62
Thank full in anticipation
Click here to see answer by Theo(13342)

Question 1093596: I have three consecutive even integers that add up to 108. What are the 3 integers?
Click here to see answer by Boreal(15235)

Question 1093529: Find the inverse.
f (x) = √x-8
Select one:
a. f ^�1(x) = x^2 + 8, x ≥ 0
b. f ^-1(x) = √x + 8
c. f ^�1(x) = x^2 + 8, x ≥ 8
d. f ^�1(x) = (x + 8)^2, x ≥ 0
Click here to see answer by Boreal(15235)

Question 1093633: If the area of a rectangle is expressed as y^4 + y^2x - 6x^2 , then the product of the length and the width of the rectangle could be expressed as what?

Click here to see answer by greenestamps(13200)

Question 1093657: Ryan, a consumer electronics salesperson, earns a base salary of $1300 per month and a commission of 88% on the amount of sales he makes. One month Ryan received a $1756 paycheck. Find the amount of his sales for the month.
Click here to see answer by josmiceli(19441)

Question 1093732: Mr M wants to start saving early for his son's tertiary studies one day. He wants pay 350 weekly into a savings account that returns 8,5% interest per year compounded weekly. How many years will it take him to have a 400 000 in the account. I got 6.75 please confirm my answer because the options l am given don't match what l am given.
[1] 12.4 years
[2] 26.1 years
[3] 21.98 years
[4] 53.8 years
Click here to see answer by greenestamps(13200)

Question 1093748: a farmer needs $250 000 to purchase a 10-ton trailer. The bank approves the loan for the full amount. The interest rate is 18% per year, compounded monthly and the loan has to be paid off in 5 years time. What is the farmers minimum monthly payment?
Click here to see answer by addingup(3677)

Question 1093741: if my salary has to double every 7 years to keep up with inflation. What will is the yearly inflation rate if salaries increase yearly? Can I have a formula please
Click here to see answer by jorel1380(3719)

Question 1093752: Determine the equation of the the straight line that passes through points (2;-7) and (1;4)
Click here to see answer by Alan3354(69443)

Question 1093752: Determine the equation of the the straight line that passes through points (2;-7) and (1;4)
Click here to see answer by rothauserc(4718)

Question 1093758: 3(y+2)=4(2-y) anyone to please help me solve this equation step by step need to understand what is to be done to get to the answer
Click here to see answer by Alan3354(69443)

Question 1093755: 2(x-1)-3(x+1)=12x+21
Click here to see answer by Alan3354(69443)

Question 1093725: How long will it take to have R30 000 for a trip to Europe if I invest R20 000 now at 15% per year,compounded quarterly?
Click here to see answer by Alan3354(69443)

Question 1093687: Solve for B (0 < B < 90�), if possible. Round to the nearest tenth of a degree.
Select one:
a. 38.4�
b. Not possible
c. 37.7�
d. 36.9�
Click here to see answer by Alan3354(69443)

Question 1093683: Find the inverse function using diagrams and test points
f(x) = 2x + 1
Select one:
a. f ^-1(x) = (x/2) -1
b. f ^-1(x) = (x/2) +1
c. f ^-1(x) = x-1/2
d. f ^-1(x) = x+1/2
Click here to see answer by josgarithmetic(39617)

Question 1093724: If your salary has to double every 7 years to keep up with inflation, what is the yearly inflation rate if salaries increase yearly?
Click here to see answer by richwmiller(17219)

Question 1093882: you invest $9000 between two accounts paying 7% and 9% annual interest, respectively. If the total interest earned for the year is $730, how much was invested at each rate?
Click here to see answer by stanbon(75887)

Question 1093884: There is a jar of 47 coins that equal $9.15
How many coins are nickels and how many coins are quarters?
Click here to see answer by Alan3354(69443)

Question 1093884: There is a jar of 47 coins that equal $9.15
How many coins are nickels and how many coins are quarters?
Click here to see answer by ikleyn(52781)

Question 1093891: How do I graph the inequality x+4y>8
Click here to see answer by ikleyn(52781)

Question 1093900: For this problem:
(-m^2n^-1)^-2/(mn)^-1
simplify
I get -n^3/m^3
but the books answer is
n^3/m^3
Am I not to assume a -1 in front of the first m in the numerator?
Please explain.

Click here to see answer by stanbon(75887)

Question 1093899: Please help me understand this
The formula when interest is compounded n time per year is A=p(1+r/n)nt
Where A is the accrued amount after t years, P is the starting principal, and r is the interest rate, expressed as a decimal, that is compounded n times a year. If you invest $1000 at an interest rate of 7%, and leave it there for 30 years, determine your ending balance if the interest is compounded.
1. Once a year 2. Twice a year

Click here to see answer by stanbon(75887)

Question 1093847: The probability of an event A is 3-4x. Find the value of x which can be and cannot be.
Click here to see answer by Theo(13342)

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