03/22/19

These are distinct Subsets
What is The number of distinct subsets of {2,3,4,...,21}What is The number of distinct subsets of {3,4,5,...,16}
Follows • 1
Expert Answers •2

03/22/19

g′(x)=7x^2−8x+7 When is the function g(x) concave down?
g′(x)=7x^2−8x+7 When is the fuction g(x) concave down?
Follows • 1
Expert Answers •1

03/19/19

How would you completely factor: a(x) =8x^3 - 12x^2 + 18x -27 without knowing any of the roots?
Follows • 1
Expert Answers •5

03/19/19

Can I still use the rational root theorem if the remaining roots are imaginary?
Follows • 1
Expert Answers •1

03/19/19

How can we move an object with zero velocity?
Consider there is a box of mass $m$ at rest on the floor. Most books give an example that we need to do a work of $mgh$ to lift the box $h$ upward. If we analyze this work done, the external force... more
Follows • 1
Expert Answers •1

03/19/19

How would the 4th root of (x^2y^4z^5) be written in exponential notation?
Follows • 1
Expert Answers •1

03/18/19

y=ln1−x√31+3√3+x2√3√+3–√arctan1+2x√33√ ?
Follows • 1
Expert Answers •1

03/14/19

How do I calculate the normal vector of a line segment?
Suppose I have a line segment going from (x1,y1) to (x2,y2). How do I calculate the normal vector perpendicular to the line? I can find lots of stuff about doing this for planes in 3D, but no 2D... more
Follows • 1
Expert Answers •2

03/14/19

Is 4/x+y/4=3/8 a linear equation?
Follows • 1
Expert Answers •1

03/14/19

Confusion with Newton's third law?
> “Every action has an equal and opposite reaction.” I have a query about the word *every* in that sentence. Suppose we have two objects A and B. A pushes B with a force of 5N and B will push... more
Follows • 1
Expert Answers •1

03/14/19

How do I compute for a cubic polynomial which leaves a remainder of (x-2) when divided by (x-1) ²and a remainder of (2x+2) when divided by (x²-2x)?
Follows • 1
Expert Answers •1

03/14/19

How do I evaluate (1+i)2+i(1+i)2+i?
Follows • 1
Expert Answers •2

03/14/19

Why isn't Earth a perfect sphere?
In general, almost everyone describes Earth as an perfect sphere, but in reality it isn't a perfect sphere. Is there any specific reason why Earth is not perfect sphere ?
Follows • 1
Expert Answers •1

03/14/19

How can I isolate "hh" from h(π2R4(H4+H2(H−h)2+(H−h)4))=1h(π2R4(H4+H2(H−h)2+(H−h)4))=1?
Follows • 1
Expert Answers •1

03/14/19

Do "other" trigonometric functions than Tan Sin Cos and their derivatives exist?
I remember my physics teacher mentioning that other trigonometric functions exist apart from the Sin Cos and Tan, he mentioned a few and they did not sound familiar, nothing like Sec Csc and Cot. I... more
Follows • 1
Expert Answers •4

03/13/19

How do you integrate: ∫π20sin(3x)cos(2x)dx ?
Follows • 1
Expert Answers •2

03/13/19

How do you graph a rational function?
Follows • 1
Expert Answers •1

03/13/19

Why are turns not used as the default angle measure?
Why is $2\\pi$ radians not replaced by $1$ turn in formulas? The majority of them would be simpler. If such a replacement was proposed earlier, why was it declined?
Follows • 1
Expert Answers •2

03/13/19

How many zeroes can the polynomial 2x2−3x+4 have?
Follows • 1
Expert Answers •4

03/13/19

If f(x) =2x+3 and f (2x+3) =5x , what is the value of 3x^2?
Follows • 1
Expert Answers •1

03/13/19

How do you solve the differential equation: dy/dx= (2x^4+4x^2+8) / (x^3+4x)?
Follows • 1
Expert Answers •2

03/12/19

Are there undiscovered elements?
Follows • 1
Expert Answers •2

03/11/19

Find all numbers x with the following property. If we raise x to the third power, the result is the same as 36 times the number. Find all such numbers and enter them separated by commas.
Follows • 1
Expert Answers •1

03/11/19

What is the volume of the solid of revolution formed when the region in quadrant l bounded by f(x)=x^2 and g(x)=4x is revolved about the x-axis? (Show your integral in your answer)
Follows • 1
Expert Answers •1

03/11/19

A table of values for a continuous function f is shown below.

If four subintervals are used, which of the following is the right sum approximation of ∫ fxdx (x=0 to x=2)?x: 0 0.5 1.0 1.5 2.0y: 4 6 8 12 22A) 6B) 12C) 24D) 48E) 60
Follows • 1
Expert Answers •1

Still looking for help? Get the right answer, fast.

Ask a question for free

Get a free answer to a quick problem.
Most questions answered within 4 hours.

OR

Find an Online Tutor Now

Choose an expert and meet online. No packages or subscriptions, pay only for the time you need.