All Questions

1241

+63

Discriminant Problem?

How many positive integers n less than 100 have a corresponding integer m divisible by 3 such that the roots of are consecutive positive integers?

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vindou Feb 10, 2019

818

Question

It takes 3 painters 4 hours to paint 1 classroom. How many hoursdoes it take 1 painter to paint 2 classrooms of the same size as the first one? Assume all painters work at the same rate for the full time.

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Guest Feb 10, 2019

959

+38

Help with Synthetic Division

I have to show that x-4 is a factor of v(x)= pi(x3-5x2-86x+360) using synthetic division and I have to show my work, but I don’t understand synthetic division. Or factoring equations. Could someone help me, please?

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IeweadOTuell Feb 10, 2019

1185

+1242

Help!

Points P and R are located at (2, 1) and (12, 15) respectively. Point M is the midpoint of segment PR. Segment PR is reflected over the x-axis. What is the sum of the coordinates of the image of point M (the midpoint of the reflected segment)? read more ..

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Lightning Feb 10, 2019

776

Can someone please help me with dividing algebraic expressions?

Programming

I know that we are allowed to ask questions about math and science but are we allowed to ask computer science. I am having trouble with bases and this question i cant understand the basic idea of what to program around:
Given a number base B (2 read more ..

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BLANK Feb 10, 2019

-2

386

Brainly.com

hey guys! i found a cool website called brainly.com!
it has alot more stuff other than math!

off-topic

Guest Feb 10, 2019

685

Please Help

We are given a cube of side length 2. We then slice a pyramid off each corner, as shown, so that every side length of the remaining polyhedron has the same length. Let $A$, $P$, $Q$, and $R$ be the vertices shown.
read more ..

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Guest Feb 10, 2019

842

The graph of the equation $y =ax^2 + bx + c$, where $a$, $b$, and $c$ are constants, is a parabola with axis of symmetry $x = -3.$ Find b/a

The graph of the equation $y =ax^2 + bx + c$, where $a$, $b$, and $c$ are constants, is a parabola with axis of symmetry $x = -3.$ Find b/a.

Thanks guys!

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Guest Feb 10, 2019

352

How is the answer G and not F

http://prntscr.com/miz1n5

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Guest Feb 10, 2019

Feb 9, 2019

814

+160

prime number math question, please help asap! :)

p and q are both prime numbers.
7p+q and pq+11 are prime numbers.
what is the value of (p^2 + q^p)*(q^2 + p^q) ?

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hearts123 Feb 9, 2019

856

+160

(GCD/prime problem) positive integers m and n, prove that (2^m -1, 2^n +1) = 1

given two positive integers, m and n.
m is an odd number.
prove that (2^m -1, 2^n +1) = 1
read more ..

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hearts123 Feb 9, 2019

701

+845

how to find vector equation

Vector A: (3, -2, 4) B: ( 1, -5, 6)
Find the vector equation of the line that passes through point a and b
please show to me how to do it so its in form r= (x,y,z) + λ(x,y,z)
thanks read more ..

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YEEEEEET Feb 9, 2019

737

I've been trying this problem on Pythagorean triples for the past 30 min

Find the values of m and n for the Pythagorean triple 48, 55, 73.

I also need the work.
read more ..

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JeffSteinman Feb 9, 2019

700

how is the answer a

http://prntscr.com/miymhe

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Guest Feb 9, 2019

307

help with these two thank you

http://prntscr.com/miyj83
read more ..

Guest Feb 9, 2019

521

help thx

there are 3 identical red balls, 4 identical blue balls, and 5 identical green balls. Three balls are randomly chosen from the bag without replacement. What is the probability that all three of them have different colors?

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Guest Feb 9, 2019

879

Approximately how many grams of Carbon-14 remain after 4300 years?

An artifact was found to have an original amount of Carbon-14 of 32 grams. Approximately how many grams of Carbon-14 remain after 4300 years? Carbon 14 decays at a rate of -0.00012 grams per year.
9.6 grams
19.1 grams
22.4 grams read more ..

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Guest Feb 9, 2019

373

need help

(a) What is the wavelength (in nm) of radiation that has an energy content of 3.71 × 103 kJ/mol? × 10 nm (b) In which region of the electromagnetic spectrum is this radiation found?

Guest Feb 9, 2019

1654

Consider points $A, B$ and $P$ in the picture below, with $\angle APB$ a right angle: [asy] size(150); import olympiad; //Draws grid lines

Consider points and in the picture below, with a right angle:

Then is the projection of onto read more ..

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Guest Feb 9, 2019

669

Help fast

Use the picture below to calculate the projection of $\mathbf{v}$ onto $\mathbf{u}$:

Rom ●

Guest Feb 9, 2019

1415

Consider the vectors $\mathbf{v} = \begin{pmatrix} 1\\3 \end{pmatrix}, \mathbf{w} = \begin{pmatrix} 3\\2 \end{pmatrix}$, and $\mathbf{x} = \

Consider the vectors , and
If the vectors v,w and x are linearly independent, answer with 0. If they aren't, find coefficients a, b and c, not all 0, such that
and answer with .

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Guest Feb 9, 2019

835

+234

College pre-calc exam

So I want to take pre-calc over the summer at a local college and they want me to take a placement exam.
What does the placement exam do in terms of the class and what is about.
If so does anyone have a youtube video or document that read more ..

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BLANK Feb 9, 2019

480

triangles help

http://prntscr.com/mixcfl

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Guest Feb 9, 2019

1038

help

Square each integer in the range and find the remainders when the squares are divided by 11. Add up all the distinct results and call it . What is the quotient when is divided by 11?

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Guest Feb 9, 2019

All Questions ⁺⁰230619 Questions

Discriminant Problem?

Question

Help with Synthetic Division

Help!

Can someone please help me with dividing algebraic expressions?

Programming

Brainly.com

Please Help

The graph of the equation $y =ax^2 + bx + c$, where $a$, $b$, and $c$ are constants, is a parabola with axis of symmetry $x = -3.$ Find b/a

How is the answer G and not F

prime number math question, please help asap! :)

(GCD/prime problem) positive integers m and n, prove that (2^m -1, 2^n +1) = 1

how to find vector equation

I've been trying this problem on Pythagorean triples for the past 30 min

how is the answer a

help with these two thank you

help thx

Approximately how many grams of Carbon-14 remain after 4300 years?

need help

Consider points $A, B$ and $P$ in the picture below, with $\angle APB$ a right angle: [asy] size(150); import olympiad; //Draws grid lines

Help fast

Consider the vectors $\mathbf{v} = \begin{pmatrix} 1\\3 \end{pmatrix}, \mathbf{w} = \begin{pmatrix} 3\\2 \end{pmatrix}$, and $\mathbf{x} = \

College pre-calc exam

triangles help

help

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