05/20/16

what is cos x?
If 0≤x≤90 and tan x=15/8, then cos x=?
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05/20/16

Not sure how to do this
If log3 x=2, then what's x equal to?
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05/20/16

problem solving by conditional probability
 conditional probability     Professional athletes who play in the NLF are subject to random drug tests. Suppose the probability that the test shows a positive result given that the athlete is... more
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05/20/16

The area of the 2nd rectangle is how many times as large as the area of the first?
A certain rectangle is 4 times as long as it's wide. Suppose the length and width are tripled. The area of the 2nd rectangle is how many times as large as the area of the first?
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05/20/16

what's the area in square units of triangle ABC?
In triangle ABC, the measure of angle A is 60 degrees and the measure of angle B is 30 degrees. If line AB is 8 units long, what's the area in square units of triangle ABC?
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05/20/16

If y varies directly with x, and y = 3 when x = 0.2, what is the value of y when x = 1?
If y varies directly with x, and y = 3 when x = 0.2, what is the value of y when x = 1?
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05/20/16

If y =sin^14 x + cos^20 x , then write the smallest interval in which the value of y lie
This is a question from r.d. sharma class 11 mathematics
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05/20/16

If vx = - 2 does x= 4 or it have a solution because the root can never be negative
My teacher says it has no solution 
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05/19/16

Find the volume of the region of y=sqrt (x), y=2, and x=0 that revolves around y=2.
The answer is 8pi/3. How do you find this?
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05/19/16

1/2[7-(-6)]-11
just need help figure that out
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05/19/16

I need this answered ASAP its due tomorrow!
A man bought a horse and a carriage for $500, paying three times as much for the carriage as for the horse. How much did it each cost?
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05/19/16

a curved baseball infield has a radius of 110 feet and opens at an angle pf 90 degrees find the length of the curved boundary
The questions is about baseball which I know nothing about n its geometry. Its about curved ball and it's 110 feet and opens at a angle of 90 degrees 
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05/19/16

Is it true the stringest winds are found inside the eye
I need thim
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05/19/16

a certain arithmetic sequence has the recursive formulaa n=an-1+d
A certain arithmetic sequence has the recursive formula  an =an-1+d if the common difference between the terms of the sequence is -11 what term follows the term that has the value 11?
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05/19/16

Determine if the relationship between each pair of values is a direct variation or an inverse variation
(0.8, 4), (1.6, 2), (5, 0.64)
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05/19/16

. Determine if the relationship between each pair of values is a direct variation or an inverse variation.
(2, 10), (7, 35), (12, 60)
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05/19/16

In triangle ABC, A= 50 degrees, B=10, and C=20 inches. Find a to nearest tenth
I tried solving it but the calculator gave me a error and I would like help to see what I did wrong.   First i did  the formula I used... more
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05/19/16

cos(2?)=1/v2 and 180 degrees<?<270 degrees
Find the value for cos(θ) if the following conditions hold: cos(2θ)=1/√2 and 180o<θ<270o a) -(√1+(√2)) b) -(√2+(√2))/4 c) -(√2(√2))/2 d) -(√2(√2))  
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05/19/16

2 cos^2 ? + cos ? = 1 HELP
I can't seem to do this and i appreciate the help 
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05/19/16

Determine the angle measure between vectors u and v: u = – 3i + 5j and v = 6i + 2j
Determine the angle measure between vectors u and v: u = – 3i + 5j and v = 6i + 2j .a) 0°, the vectors are parallel.b) 90°, the vectors are perpendicular to each other.c) 97.8°d) 102.5°
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05/19/16

6 coins are tossed. what is the probability of getting 4 tails?
thanks :) I'm stuck on using (nCr)*(P^r)*(q^n-r) 
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05/19/16

the probability of a baseball player with a .300 average getting at least 2 hits in the 5 at bat is .47178.
What isthe probability he gets fewer than 2 hits? thanks :)
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05/19/16

distribute 4(x-21)=?
How to find the answer.
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05/19/16

Why my answer isn't making sense?
  1/2*3/1=3/2 3/4*3/1=9/4 1/3*2/1=2/3   The LCD is 12 3/2(6)=18/12 9/4(3)=27/12 2/3(4)=8/12   18/12+27/12+8/12=53/12   I can't get an answer that would add up to my equation.  I divided... more
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05/18/16

The equation
The equation 4x^2+9y^2-36y = 0 defines a shifted ellipse. Write this equation in the standard form, find the center, focus, vertices of this ellipse, the lengths of major and minor axes and sketch... more
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