03/27/16

Math sense
a: How many 3/4s are in 1 ? b: Use the answer to part a to find the number of 3/4s in 3 ?   Please explain this fraction problem in very detail. I am totally stuck here.
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03/26/16

What are the coordinates of the vertx of the parabola y=x^2+4x-6?
Y=x2+4x-6
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03/26/16

find two numbers whose sum is 14 and whose product is the maximum possible value
 Need Help with this
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03/25/16

At what rate is the height of the pile changing when the pile is 15ft hight?
At a sand and gravel plant, sand is falling off a conveyor onto a conical pile at the rate of 10 cubic feet per minute. The diameter of the base of the cone is approximately three times the... more
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03/24/16

Mean Value Theorem
Determine if the Mean Value Theorem for Integrals applies to the function f(x) = x³ - 4x on the interval [-1, 1]. If so, find the x-coordinates of the point(s) guaranteed to exist by the theorem
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03/24/16

determine the dimensions of the enclosure that can be erected at minimum cost
The management of the UNICO department store has decided to enclose an 813 ft2 area outside the building for displaying potted plants and flowers. One side will be formed by the external wall of... more
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03/21/16

let n belong to N. if a,b,c,d belong to N and a congruent b (mod n) and a congruent d (mond n), prove ac congruent bd (mod n)
let n∈N. if a,b,c,d ∈ N and a≡b (mod n) and c≡d (mod n) prove that ac≡bd (mod n). Please, any help would be greatly appreciated. This is a study question on my study guide and I'm having difficulty.
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03/21/16

Evaluate a problem
              ² Evaluate ∫ |x-1|dx              °   0 12None of these
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03/21/16

Find G (x)
                    x Given G(x)=∫ln(2t +1)dt find G  (x)                     1  ln(2x + 1)ln(2x + 1) - ln3ln(2t + 1) + C 2/2x+1
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03/20/16

Linear Approximations estimating given number
F(x)= (x+1)^(1/3)   X naught = 0 given number is cube root (1.2)     Please Help! I Don't know how do any of these steps to get this answer. 
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03/20/16

Find the general solution to the differential equation.
a. dy/dt = 2y-t b. dy/dt=3y+2t   Please explain and show all working. Thank you ;)
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03/19/16

please help me in this hard question
let c = (0 to π ) ∫ e^(-2x) * cos x dx and s = (0 to π ) ∫ e^(-2x) * sin x dx a) show by integration by parts , or otherwise that c = 2s and s=-2c+1+e^(-2π) b) hence, or otherwise find the values... more
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03/17/16

Angle sizes between a clocks hands.
My sons Year 7 Question: An analogue clock has an hour hand and a minute hand. At 12 o'clock the is 0 degrees between the two hands. If the angle of the two hands is measured in a clockwise... more
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03/15/16

expand log(6x^3y^6)
 I"M DYING
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03/14/16

Match each interval with its corresponding average rate of change for q(x) = (x + 3)^2.
Match each interval with its corresponding average rate of change for q(x) = (x + 3)^2. -6 ≤ x ≤ -4                      0  -3 ≤ x ≤ 0                       -1  -6 ≤ x ≤ -3                   -4... more
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03/13/16

Solving quadratic triangle problem.
I keep getting the wrong answer to this : The area is 126cmsquared. The height is 2xcm and the base is x+11cm. Find x.
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03/12/16

Help with quadratic equation
Hi, I keep getting wrong answer to this : √2x2 — 3x + √2 =0 
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03/11/16

sinb = cos(2b-30)
the question arks to solve for B. can you please help me 
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03/11/16

Base of a solid
The base of a solid in the region bounded by the graphs of y = e-x y = 0, and x = 0, and x = 1. Cross sections of the solid perpendicular to the x-axis are semicircles. What is the volume, in cubic... more
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03/10/16

1. Use the first five terms of the exponential series of e^x and a calculator to approximate e^1.2 to the nearest hundredth.
I have no idea how to solve these problems, so steps would be helpful... The answer choices are the following for number 1... A) e^12= 1 + 1.2 + 1.44/2 + 1.728/6 + 2.0736/24 = 3.29 B) e^12= 1 + 1.2... more
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03/10/16

cot x+ tan x = 2 cosec x
trignometry proving
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03/09/16

I really need help with this integral problem.
Integral from square root of 2 to 2 of 1/(x(sqrt(x^(2)-1)). How do I evaluate it and get the answer? Thanks.
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03/07/16

in a 30-60-90 right triangle, the hypotenuse is 12 cm. What is the length of the longer of the two legs?
it's a special right triangle. 
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03/06/16

Sin -1 (-1/2) in radians
Sin -1 (-1/2)
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03/06/16

difference quotant
The difference quotient f(x+h)-f(x)/h for f(x)=x2-2x-4 Please help me solve this and explain how to solve. Thanks!
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