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08/19/20

Calculus in physics

Calculus is a powerful tool used in all areas of physics. One of the initial applications areas is classical physics, particularly Newtonian mechanics. An important function is the position... more

08/19/20

Which of the following sets of vectors are linearly independent?

A. [0 0], [-6 9]B. [7 -4], [6 -9], [-8 -2]C. [-6 8 7], [-4 6 -9], [10 -14 2]D. [9 6 2], [0 1 -8], [3 4 -7]E. [4 9 0], [-7 -5 0], [-3 2 0]F. [3 -1 -2], [-1 5 -8]

08/18/20

Confirm that f and g are inverses by showing that f(g(x))=x and g(f(x))=x.

f(x)=(x+4)/6g(x)=6x-4

08/18/20

sinθ=9/41 and cosϕ=−8/10, both angles terminate in Quadrant II find the exact value of cos(θ+ϕ)

sinθ=9/41 and cosϕ=−8/10, both angles terminate in Quadrant II find the exact value of cos(θ+ϕ)You do not need to simplify any radicals.

proof that p(1)+p(2)+...+p(n)=n^3 (please help)

P(x) function polynomial 2nd degree P(1)=1 P(2)=7 P(3)=19we have natural integer n ⁄ n≥1proof that P(1)+P(2)+...+P(n)=n3Help please

08/17/20

Help with Converse, Inverse, and Contrapositive statments

pls help, figuring out how to write these statements as Converse, Inverse, and Contrapositivehttps://ibb.co/jR5KcFT

08/17/20

I need help with my algebra

The product of x and 10 is greater than or equal to 23

08/15/20

Help! What is the greatest number of white squares you can place so that each covers part of the blue square without overlapping one another?

You have a large pile of squares that each have a side length of 1 inch. One square is blue, while all the other squares are white. You want to arrange several white squares so they cover part of... more

Limit of trig functions

What is the limit lim x ->0 sin x^2 /(1-cos x)

07/20/20

Find the probability of choosing an item from the intersection of following sets

Find the probability of choosing an item from the intersection of following sets    Set A : {1, 5, 10, 14, 22}   Set B : {5, 14, 20, 22, 27}

Coterminals and Reference Angles

List three angles that are co-terminal with 78º.

07/17/20

f(x)=5x+6,g(x)=3x2−4x+8. Find (f - g)(x)

07/17/20

Math. Math. Math.

Customers at a supermarket have been increasing at a linear rate. In 2011 the number was 570,000. In 2012 was 730,000 if y represent the number of customers visiting the supermarket per year and x... more

07/14/20

Simplify 23 - 7(1-x) = 26 - 5(2-4x) - 13x

07/14/20

A rancher has 2600 feet of fence to enclose a rectangular region that lies along a straight river.

A rancher has 2600 feet of fence to enclose a rectangular region that lies along a straight river. If no fence is used along the river (see the figure), find the dimensions needed to... more

07/14/20

Proving delta epsilon limits at infinity for unknown function

I have a question and it's limx>inf (f(x)= 2 and I have to prove that N exists and if x>N 1<f(x)<3I started trying to set up my proof with |f(x)-2|<E but I've never done a problem... more

Any composition and inversion expert out there?

I need help to finish the following exercise (I was able to finish 2 by myself but not the other ones. A step by step explanation would be highly appreciated!):1. What can be said about the domain... more

I don't understand

A bank loaned out $18,500, part of it at the rate of 9% annual interest, and the rest at 6% annual interest. The total interest earned for both loans was $1,335.00. How much was loaned at each... more

07/07/20

diverge or converge

please provide if it diverges or converges and please provide steps.∞∑ sin (6n2+5 /n5+5)n=1

07/04/20

Trigonometry Question

From the top of a 229-ft lighthouse, the angle of depression to a ship in the ocean is 24 degrees How far is the ship from the base of the lighthouse? To measure the height of the cloud cover at... more

07/03/20

In the video, the water level was 15 milliliters before adding the chain, and 20 milliliters after adding the chain. When I weighed the chain, its mass was 72.5 grams.

I believe the chain is solid metal (not gold plated), but is probably a blend of gold and other metals. I looked up that gold has a density of 19.3 g/ml, while the other metals like silver and... more

07/02/20

Geometry check my answers please :)

Would this be correct??A pentagon’s radius (measure from center to vertex) measures 4 cm, what is the pentagon’s area? 360 / 5 = 72sa = 54 2.5 times tan ( 54 ) h = 3.4 1/2 b ( 7.3 ) = 15b = 4.13.4... more
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