Solve 2 + 1 =1 x-3 4x+20 x^2+2x-15
A train leaves Watsonville at noon traveling north at 44mph l. One hour later, another train, going 52mph, travels north on a parallel track. How many hours will the second train travel before it...
Sean has $86 to spend. He can spend all d it on one CD and two DVDs, or he can but two CDs and one DVD and have $16 left over. What is the price of a CD? Of a DVD?
Find an equation of the line containing the given point and perpendicular to the given line (5,2) 3x+y=5
Solve (y^2-1/y)^2 -4(y^2-1/y)-12=0
A stone mason has enough stones to enclose a rectangular patio with a perimeter of 60ft, assuming that the attached house forms one side of the rectangle. What is the maximum area that the mason can...
A student opens a literature book to two facing pages. The product of the page numbers is 812. Find the page numbers
During the first part of a trip, Sam's Chevrolet Cobalt traveled 120 mi. Sam then drove another 100 mi at a speed that was 10 mph slower. If the total time for Sam's trip was 4 hr, what was his speed...
The outside of a mosaic frame measures 14 in by 20 in., and 160 in^2 of mirror shows. Find the width of the frame.
The length of a rectangular parking lot is twice the width. The area is 162 yd^2. Find the length and the width.
The hypotenuse of a right triangle is 22m long. The length of one leg is 10 m less than the other. Find the lengths of the legs
a person can see 72 mi to the horizon from an airplane window. How high is the airplane? Use the formula D=1.2√h, where D is in miles and h is in feet.
r=2√5L Can be used to approximate the speed r, in miles per hour, of a car that has left a skid mark of length L, in feet. Use this formula to solve the following. How far will a car...
How far can you see to the horizon from a given height? the function D=1.2√h can be used to approximate the distance d, in miles, that a person can see to the horizon from a height h, in feet...
Rationalize the denominator. Assume that no radicands were formed by rasing negative numbers to even powers. 7√2 + 4√3 4√3 - 3√2
Divide and simplify. Assume that all expressions under radicals represent positive numbers. ^5√32b^10 243a^20
Multiply and simplify. Assume that no radicands were formed by raising negative numbers to even powers. ^4√9ab^3 X √3a^4b