10/12/15

The ratio of the interior angle is 1 : 4 : 5. What are the angle measures
 please tell me the awnser
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10/12/15

Distance, Rate, and Time Problem
Because of bad weather, a bus driver reduced his usual speed along a 165 mile route by 5mph. The bus arrived 15 minutes later than usual. How fast does the bus usually travel?
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10/12/15

Area of parallelogram
Trapezium ABCD and ADEF have the same height and the ratio of their areas is 13:14. If AD =10 cm and BC = 16 cm , find the length of EF.
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10/12/15

How do I factor to find the zeros
y= 4x^3 + 4x^2 - 7x +2 find all the real zeros.  I dont know how to factor this fraction. I saw the Ac factoring thing but I didnt understand it. May someone explain to me please?
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10/12/15

i don't understand if you can show work would be great
The end of pendulum with a length of 21 cm travels an arc length of 24 cm. how many degrees does the pendulum swing?
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10/12/15

f(x) 3x^2+5x-7. simplify the quotient: f(x+h)-f(x)/h
f(x) 3x^2+5x-7. simplify the quotient: f(x+h)-f(x)/h
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10/12/15

Differentiate f(x) = A/(B + Ce^x)
Differentiate f(x) = A/(B + Ce^x)
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10/11/15

a solution contains 3%salt. How much pure water should be added to 30 oncec of the solution to dilute it to a 1.75% sloution
a solution contains 3%salt. How much pure water should be added to 30 oncec of the solution to dilute it to a 1.75% slo
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10/11/15

QUADRATIC EQUATION HELP
Find the range of values of k for which the equation 2x2+x+5=k(x+1)2 has no real roots.
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10/10/15

2x2 matrice such DA=0
A)find non-zero 2x2 matirx A and D that DA=0 B)show that if A is invertible, and DA=0, then D=0
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10/10/15

How to factor
I need help with this question   20w^2+11w-3
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10/10/15

a carpenter cuts boards that are 2 meters long. It is acceptable for the length to differ from this value by at most 0.05 meters.
write and solve an absolute value inequality to find the range of acceptable lengths   
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10/10/15

(1/cosx)(cosx)=cosx/sinx
prove the identity
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10/10/15

Radicals??
Simplify. Assume that all variables are nonnegative real numbers.  Square root then 81x^7  (simplify your answer. Type an exact answee, using radicals as needed)
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10/10/15

let f(x)=-24/x and g(x)=2-x^3.
1.let f(x)=-24/x and g(x)=2-x^3. find i (fog)(x), ii (gof)(x) iii (gof)(4), iv (fog)(2)   2. a farmer has 600 yards of fencing and wishing to enclose a rectangular garden  whose width is x... more
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10/09/15

Quadratic equations
To solve the following quadratic by completing the square, what value would you add to both sides of the equation x2 - 6x=7?
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10/09/15

P varies directly as q and s but inversely as t and v. P is 360 when q=5, s=6, t=4, and v=7. Find P when q=30, s=40, t=50, and v=70.
The teacher gave us these equations to use:   directly: y=kx inversely: y=k/x
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10/08/15

How many pounds of the $8 coffee should be used?
The manager of a coffee shop has one type of coffee that sells for $8 per pound and another type that sells for $14 per pound. The manager wishes to mix 60 pounds of the $14 coffee to get a mixture... more
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10/08/15

find all points having an x-coordinate of 4 whose distance from the point (-4,2) is 10
 find all points having an x-coordinate of 4 whose distance from the point (-4,2) is 10
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10/08/15

Properties of Divisibility
Let a, b, and c be integers with a≠0. Prove that if a|b and b|c then a|c.
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10/07/15

Find the rate?
Two sides of a triangle are 6 m and 12 m in length and the angle between them is increasing at a rate of 0.06 rad/s. Find the rate at which the area of the triangle is increasing when the angle... more
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10/07/15

if ab=bc and bc=cd how can I assume that ab=cd?
i want to know the proof of it.
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10/07/15

The radius of a sphere is increasing at a rate of 4 mm/s. How fast is the volume increasing when the diameter is 40 mm
Please help me 
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10/07/15

what is (A/square root of A-1 )-square root of A-1?
It's about subtracting radicals and then simplifying them.   
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10/06/15

Train speeds?
two trains going in opposite directions leace at the same time. train B travels 15mph faster than train A. In 6 hours the trains are 630 miles apart. What is the speed of both trains? 
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