02/16/15
Word problem
A plane travels 800 mi from Dallas, Texas, to Atlanta, Georgia, with a prevailing west wind of 40 mph. The return trip against the wind takes 1/2 hr longer. Find the average speed of the plane in...
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02/16/15
the rainfall total 2 years ago was 10.2 inches. Last years total was 20% greater. what was last years rainfall total?
We are learning percent markup and markdown and percent increase and decrease. I want to know, which one do i do for this problem?
02/16/15
How do I solve 1.171343 X 10 to the power of -11 Thank you!
1.171343 X 10-11
Please advice on how to solve.
HELP!! I dont understand this word problem!
An investment is worth $3980 in 1994. By 1999 it has grown to $6380. Let y be the value of the investment in the year x, where x=0 represents 1994. Write a linear equation that relates the value of...
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02/15/15
how to slove this .. !! please cos(x)cos(2x)cos(4x)cos(8x)= sin(16x)/sin(x)
cos(x)cos(2x)cos(4x)cos(8x)= sin(16x)/sin(x)
PLEASE URGENT GUYS!
02/15/15
Functions of f and g
if f(x)= 4x-1 and g(x)= x+1/4
(a) What are f(g(x)) and g(f(x))?
(b) Are f(x) and g(x) inverse functions?
02/15/15
How do you expand the logarithm log(base 8) 8 (radical 3a5) ?
I don't know what to do with the 8bin front of the radical
02/15/15
Let F(x) = -x^2+2x-3
Three Part Question:
( A )Find the average rate of change of the graph of f(x) between x=c and c+h.
( B )Find the slope of the tangent line of the graph of f(x) at x=c by the definition.
( C...
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02/15/15
What is the possible discriminant of the graph?
a parabola opening up one x intercept near negative 6
Choose one answer. A. -17 B. zero C. 12 D. 49
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02/15/15
If 3 ± 2i are solutions to x2 + bx + c = 0, where b and c are real numbers, what is the value of b?
math practice problem, please help!
02/14/15
The product of 3 consecutive integers is -1716. What is the greatest of the 3 integers.
Please show it in an equation and explain a little more when and how synthetic division is used in that equation.
02/14/15
Factorials
How do I solve this problem and put it through my T1 84+ calculator?
25!/(25-10)! 10!
i'm very confused on the order of putting everything in and I'm not getting the answers right
02/14/15
Factorials !
How do I input a factorial into my T1 84+ calculator? For example the problem is
26!/(26-10)! 10!
I cannot seem to find the factorial button or how to solve this problem
02/14/15
help me solvea area problem
cynthia besch wants to buy a rug for a room that is 28ft wide and 29 ft long. she wants to leave a uniform strip of floor around the rug she can afford to buy 702 square feet of carpeting. what...
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02/14/15
dollars and half-dollars totals 90.50. If the number of half dollars is 20 more than 5 times the number of dollars. What is the number of dollars in the jar?
A Jar of dollars and half-dollars totals 90.50. If the number of half dollars is 20 more than 5 times the number of dollars. What is the number of dollars in the jar?
02/14/15
consider the equations f(x)=-6x-1 and g(x)=4x^2 select the solution for (fg)(x)
a)-6-1+4x^2
b)-24x^3-4x^2
c)-24x^2-1
d)-24x^5
02/14/15
Trista has a total of 160 CDs from both Classic Rock and Hip-Hop genres. The number of Classic Rock CDs is 8 more than three times the number of Hip-Hop CDs. Wh
Trista has a total of 160 CDs from both Classic Rock and Hip-Hop genres. The number of Classic Rock CDs is 8 more than three times the number of Hip-Hop CDs. Which system of equations can be used...
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02/13/15
How much of the solution should be drained and replaced with bleach to increase the bleach content to the recommended level?
A health clinic uses a solution of bleach to sterilize petri dishes in which cultures are grown. The sterilization tank contains 90 gal of a solution of 4% ordinary household bleach mixed with pure...
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02/13/15
How long it takes to catch a faster jogger
a jogger who can run a 10 minute mile starts a half-mile ahead of a jogger who can run an 8 minute mile. How long will it take the faster jogger to catch the slower jogger?
02/13/15
How do I simplify this: f(x)=log(e) [(x+1) v(x-1)] and find derivative
How do I simplify this: f(x)=log(e) [(x+1) √(x-1)] and find derivative
Please show step by step solution
Thanks!
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02/12/15
Finding break-even point with information given in problem
A division of the Gibson Corporation manufactures bicycle pumps. Each pump sells for $9, and the variable cost of producing each unit is 20% of the selling price. The monthly fixed costs incurred...
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02/12/15
Finding break-even quantity and break-even revenue in terms of constants given
Suppose the cost function associated with a product is C(x) = cx + F dollars and the revenue function is R(x) = sx, where c denotes the unit cost of production, s the unit selling price, F the...
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write an absolute value inequality for 35 degrees C with the temperature able to vary as much as 1%
For your chemistry experiment, you are trying to keep the water temperature at 35°C. For the experiment to work properly, the actual temperature can vary as much as 1%. Write and solve an absolute...
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02/12/15
the area of a rectangle is (6x^2+11x+5)cm^2. the width is (x+1)cm. what is the length of the rectangle
the area of a rectangle is (6x^2+11x+5)cm^2. the width is (x+1)cm. what is the length of the rectangle
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