03/18/15

The area of a compact disc is 452 4/7 square centimeters. What is the diameter of the compact disc. Use 22/7 as an approximation for pi.
 I really need help on this problem because I struggle in this and I have tried many times but I can't get it.
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03/18/15

(sinx+1)(2sin^2x-3sinx-2)=0
Solve on the interval [0, 2π)   (sinx+1)(2sin^2x-3sinx-2)=0   a) x=2π, x=π/2,x=π/3 b)x=π, x=2π/3, x=5π/3 c) x=3π/2, x=7π/6, x=11π/6 d) x=2π, x=π/2, x=5π/4     Please explain in detail.... more
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03/18/15

Determine the area of the trapezoid
Trapezoid ABCD is divided into four triangles by its diagonals. The triangles adjacent to the parallel sides have areas of 2 and 18. Determine the area of the trapezoid
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03/18/15

math help please.
Find an equation of variation in which y varies directly as x and y=1.3 when x=0.2. Then find the value of y when x=4   An equation of variation is y= __   The value of y is ___ when x=4
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03/17/15

if csc(theta)=sqrt(15)/15, what is sin(theta)?
if csc(theta)=sqrt(15)/15, what is sin(theta)?
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03/17/15

Force of gravity of two masses....
How would the force of gravity between two masses be affected if the separation distance between them were the following? (Assume F2 represents the new force and F1 represents the original... more
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03/17/15

Express 172.45 degrees as an angle to the nearest minute
The question asks to the nearest minute, it also asks express 172.45 as an angle.
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03/17/15

A peculiar die has the following properties
A peculiar die has the following properties: on any roll the probability of rolling either a , a , or a is , just as it is with an ordinary die. Moreover, the probability of rolling either a , a ,... more
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03/17/15

a=bm+ut-iz/q solve for q
me and other students think you can multiply by q to the answer but our physics teacher begs to differ. I'm just curious on how you would solve this.
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03/17/15

Please help with this
A batter hits a fly ball. A scout in the stands makes the following observations.   Time(seconds).75, 1.5, 2, 2.75, 3.25, 4.75Height(feet) 77, 133, 160, 187, 194, 169   The function is... more
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03/17/15

Combinations
My teacher gave us six essay prompts to prepare for an upcoming exam. However, the exam will only have four of the original six listed and from those four we must choose one to write an essay... more
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03/16/15

(x+2)/(x^2-4+4x)÷(x^2-4)/(x-2)
identify the domain of the expression  
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03/16/15

Need help finding the missing angles and sides for a triangle?
I'm having trouble finding the missing sides and angles for the triangle. I know you have to use law of sines to find them, but I'm having trouble. Any help is greatly appreciated!   A= 42°, C=... more
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03/16/15

Tom has a 490-page book to read. If he has already read 56 pages, how many more pages should he read each week to finish in 6 weeks
I can't figure it out please help me 
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03/16/15

evaluate cos(inverse)1/2
evaluate cos(inverse)1/2Evaluate arccos1/2. I don't understand this? What does it mean to evaluate? How do I do this? What are the steps? Please show step by step with explanation. I don't know how... more
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03/16/15

f(x)= tanx/secx
Tell whether or not f(x)=sinx is an identity
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03/16/15

Given f(x) = the quantity of 5x plus 1, divided by 2, solve for f-1(8).
 Given f(x) = , solve for f-1(8). 3 7 10 20
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03/15/15

A man plants 3/4 of a garden with vegetables and 1/4 of it with flowers. He plants 2/3 of the flower section with daisies and the rest of the flower section wit
A man plants 3/4 of a garden with vegetables and 1/4 of it with flowers. He plants 2/3 of the flower section with daisies and the rest of the flower section with lilies. What fraction of the entire... more
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03/15/15

Solve The system of equations using elimination.
2x+7y=1 2x-4y=12
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03/15/15

Solve for theta in the interval 0 to 180
2 sin theta = sin 2 theta 
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03/15/15

Solve and check for the following in the interval -90 to 90
2 sin theta = tan theta
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03/15/15

Solve for theta in the interval 180 to 270
sin theta + radical 2= -sin theta
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03/15/15

How many votes were for blue?
5/8 of votes were for blue. 5/9 of the remaining were for green. And remaining 48 were for red
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03/14/15

Systems of linear equations and problem solving
in 2012, the average emails sent or recieved 115- emails each day. The number of emails recieved was 1 more than twice the number sent. how many were sent and how many were recieved each day
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03/13/15

deduce the formula of the hydrocarbon
10cm3 of hydrocarbon were expose with an excess of oxygen. When cooled to room temperature there was a contraction in volume of 30cm3. on treatment with NaOH there was a further contraction of... more
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