10/20/19

Calculus: Integral Calculus

Evaluate ∫1/(1-cos(x)+sin(x))
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10/20/19

What is the equal of this statement?
coseca-sina--------------- -1 cosecaA) cos^2aB) sin^2aC)1-cos^2aD)-sin^2aE)sin^2a-1
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10/20/19

I need to write a sequence for which f(3) = 1/4
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10/20/19

Restrictions on X
XZ=12 , ZY=18 , XY= 4x-6What are the restrictions on X?
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10/20/19

Simplify the expression using the properties of exponents. Expand any numerical portion of your answer and only include positive exponents.
(x^-2y)^2 (5x^0y)^3 ---------------------------(4x^3y^4)^3 (xy^-1)^3
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10/18/19

Logs is this true (trying to make the function linear)
-1*log(ax+b)=-log(a)*-log(x)-log(b)
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10/18/19

What is the recursive formula for this arithmetric sequence?
-16, -7, 2, 11A. {a1= -16 {an = an-1 +9B. {a1= 11 {an = an-1 -9 C. {a1= 11 {an = an-1 +9D. { a1= 16 {an = an-1 -9
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10/18/19

Please someone explain to me how they got the answer. I’m so confused

The volume of a cone varies jointly as the square of its radius and its height. If the volume of a cone is 25π cubic inches when the radius is 5 inches and the height is 3 inches, find the volume... more
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10/18/19

Atoy rocket.. PHYSICS HELP
A toy rocket engine is securely fastened to a large puck that can glide with negligible friction over a horizontal surface, taken as the xy plane. The 3.00-kg puck has a velocity of 1.40î m/s at... more
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10/18/19

Proving Trigonometry Identities: Help on a Practice Test.
This was the first question: Let α=β=θ in the formula cos(α+β) and thus derive a formula for cos2θAnd I solved it as: cosθcosθ - sinθsinθ = cos2 - sin2Now, the question I can't figure out is: Use... more
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10/18/19

Help me with this question (in description)
Tricia has $1500 in her bank account. She wants to buy a CD player and invest the remainder at 6 1/2% compounded quarterly for 4 years. At the end of the 4 years, Tricia wants $1500 in her bank... more
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10/18/19

A normal distribution has a mean equal to 45. What is the standard deviation of this normal distribution if 2.5% of the portion under the curve lies to the right of x= 50.88?
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10/18/19

4x^2 + 28x - 16. Factor
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10/17/19

Determine the points
Determine the points where the instantaneous rate of change dy/dx of the equation y2 - 2x2 = 32 is equal to 1.
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10/17/19

Find the vertex and the x-intercepts (if any) of the parabola. (If an answer does not exist, enter DNE.) f(x) = −3x2 + 8x − 3
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10/17/19

Inverse normal distribution
The SAT test is a test taken by any students to enter college. THe mean of the math section is 500 with a standard deviation of 100. The scores are normally distributed. What score is the cutoff... more
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10/17/19

Find a so that f(x) = ax2 + 4x − 4 has a minimum value of −8.

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10/17/19

Find both points where the line y=2x-1 intersects a circle centered at the origin with radius 3. (round to the three decimal places)
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10/17/19

On Monday, 334 students went on a trip to the zoo. All 8 buses were filled and 6 students had to travel in cars. How many students were in each bus.
X is how many students were in each bus
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10/16/19

Points A, B, and C are all collinear and AC=94. AB= 7x + 8 BC= 5x + 2. How would I find how long each segment is?
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10/16/19

Use the limit definition to compute f′(a) and find an equation of the tangent line. f(x)=1/sqrt(64x), a=4. y=____.

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10/15/19

an airplane emits a radar beam that can detect an object up to 60miles away and rotates through an angle of 150degrees. what is the area of the region covered by the radar beam?
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10/15/19

System of equations word problems
A chemists needs 30 liters of a 10% alcohol solution but has only a 30% alcohol solution. How many liters of 30% solution and water should he mix to make the desired 30 liters of 10% solution?
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10/15/19

the total age of a woman and her son is 51 years. three years ago the woman was eight times as old as her son. how old is her son now?
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10/15/19

how do i solve this

f(x) = x-7, g(x) = x2-5, and h(x) =4-2x
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