08/30/17

Evaluate the radical expression and express the result in the form a + bi. (Simplify your answer completely.)
√-5√-45
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08/30/17

Linear Algebra Question
the vector [-14,-7,19] is a linear combination of vectors [-3,-3,-3] and [10,9,-10] if and only if the matrix equation Ax = b has a solution x where     A = [?  ?]    and b = [?]       [?  ?]  ... more
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08/30/17

Introduction to Calc inequality
The inequality is x7 - x6 <= 0. So far, I think the first step is to factor out x^6, leaving us with (x^6)(x-1) <= 0, though I'm not sure about this step. Any help is appreciated!
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08/29/17

What is the inversion of f(x)=5/3x-3
I need help with this problem. I cant seem to figure it out.   
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08/29/17

liberal arts mathematics 12 grade
Thrifty Parking Garage has 40 parking spaces. Each space can be used by a car or a motorcycle (no trucks). One day when all 40 spaces are in use, the owner walks through the garage and looks at... more
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08/28/17

A rational function g(x) is such that g(x) = f(x) wherever f(x) is defined. Find the value of a and b.
f(x) = (2x-2)/ x2+x-2 g(x) = a/ b+x  
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08/28/17

What was the pen name of Samuel Clemens, author of The Adventures of Tom Sawer and Adventures of Huckleberry Finn?
William Marcy Tweed Thomas Nast Ely Beach Mark Twain
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08/28/17

If a jet travels at a speed of 1903 mph, what is its speed in Mach units?
If a jet travels at a speed of 1903 mph, what is its speed in Mach units?
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08/25/17

Find the real solution 2x^2=9-5x
Use the quadratic formula 
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08/24/17

A plane flew a total of 2220 miles it's average speed was 555 miles per hour how many hours did the plane fly
I need to find out how many hours did the plane fly 
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08/24/17

Find the equation of the line through (-2, -3) and (4,5)
I got a little bit into it and I still have a lot of trouble getting to the other steps to find the equation 
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08/24/17

The equation of the line perpendicular to 2x+5y=202x+5y=20 and containing the point (10,−4)(10,−4) is
help 
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08/23/17

Calculus question
The area between the two curves y = x2-2x+4 and 2y=x-2 bound by x = 0 and x =3 is what?   Help!?
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08/20/17

Graph the function f(x)=(sqrt x+2)+3 . To do so, graph the leftmost point and three additional points
How can you figure out the points when the x is a square root
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08/18/17

Calculus question
Graph 3 members of the family of curves that have f(x) = -x+1 as a common derivative. Help!?
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08/18/17

Quadratic function word problem
a)Find the area of the rectangle of maximum area with perimeter 12 centimeters.    b) Find two real numbers whose difference is 10 and whose product has the least possible value.   For a I got... more
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08/18/17

A number increased by its product with 5 equals 54. What would the number be?
 This is a question asked by one of my 8th grade teachers in math, and i have to have it done soon. Please help!!!
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08/18/17

True or False: For a one-to-one function, y= f(x), then x = f^-1(y)
How do you get the solution?
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08/18/17

what is the maximum number of relative extrema contained in the graph of this function?
3x3 -x2+4x-2
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08/18/17

Given f(x)=4/x,simplify f(x+h)-f(x)/h
this is on my calc hw. ridiculously hard. help pls?
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08/16/17

Calculus question HELP ASAP!
A biatholon is organized for swimmers and speed walkers. The first leg will require swimming from a launch 4 km from the shore of the lake. The second leg involves a walk to the finish line which... more
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08/16/17

Word Problem
Roger can run one mile in 8 minutes. Jeff can run one mile in 6 minutes. If Jeff gives Roger a 1 minute head start, how long will it take before Jeff catches up to Roger? How far will each have run?
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08/16/17

Is the radian always equal to the radius of a circle?
Is the radian of a circle always equal to the radius of a circle? If so, are there always the same number of radians in every circle? If an angle has a measure of 30 degrees, the radian would be... more
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08/16/17

Let f(x) = x^2 – 81. Find f^-1(x).
I need explaining this example. 
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08/15/17

Find the second term of a geometric sequence if
a3=18 and a5=162
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