All Questions

920

A coffee shop sells bags of coffee for a regular price of

A coffee shop sells bags of coffee for a regular price of
$8
per bag. Kevin bought some bags and used a coupon for
$10 read more ..

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Guest Mar 30, 2018

639

+1243

Why does the 'Post Answer' Button becomes locked?

After some time, why does the botton at the top of a question("Post Answer") becomes locked after some time?

off-topic

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Lightning Mar 30, 2018

2985

How many bases $b$ are there such that $663_b$ is prime?

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Guest Mar 30, 2018

630

HELP

Translate this sentence into an equation.
The sum of
10
and Matt's savings is read more ..

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shalawolala13 Mar 30, 2018

463

HELP

Latoya is filling a tank with water at a rate of
4
gallons per minute. The tank already had
170 read more ..

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Guest Mar 30, 2018

780

+168

Percentages 2

Some of the children at the nursery arrive by car.

40% of the children are boys
70% of the boys arrive by car read more ..

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Walthamx Mar 30, 2018

638

+4609

geno is back!

Welcome back, GENO!

off-topic

tertre Mar 30, 2018

1817

+4609

Help, thanks!!!!!1

In the figure, point is the center of the circle, the measure of angle is 28 degrees, and the measure of angle is three times the measure of angle . What is the measure of minor arc , in degrees? read more ..

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tertre Mar 30, 2018

1111

+168

Percentage 1

A shop has a 20% of sale. On the final day of the sale prices are reduce by 25%.

What is the overall percentage reduction?
read more ..

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Walthamx Mar 30, 2018

1135

+470

shook

my birthday is on april 12 but because of that my birthday present is the ELA State Test wow ok

off-topic

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Neptune Mar 30, 2018

1479

+654

Find $a+b+c$, given that $x+y\neq -1$ and \begin{align} ax+by+c&=x+7,\\ a+bx+cy&=2x+6y,\\ ay+b+cx&=4x+y. \end{align}

Find $a+b+c$, given that $x+y\neq -1$ and \begin{align*} ax+by+c&=x+7,\\ a+bx+cy&=2x+6y,\\ ay+b+cx&=4x+y. \end{align*}

hectictar ●

supermanaccz Mar 30, 2018

1087

+895

Simplify Expressions

Link to original question: https://web2.0calc.com/questions/simplify-each-expression_1
CPhill answered but he dropped the 2 on the -2cos4x.

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AdamTaurus Mar 30, 2018

801

Rational or irrational

How can I find out if the following decimal is rational or irrational:
0.140376266280752532561505065123....
Thanks for any help.

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Guest Mar 30, 2018

1084

+251

is there a difference? :repost

I have the equation:
this equation was derived from solving the logistic growth equation:
where,
r is the rate of growth = 1.13 read more ..

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vest4R Mar 30, 2018

689

What is (f+g)(x)?

What is (f+g)(x)?

f(x)=x3−x
g(x)=x3+2x2−10 read more ..

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Guest Mar 30, 2018

2322

Two Quick Math questions

1.
What is (f−g)(x)?
f(x)=x^4−x^2+9
g(x)=x^3+3x^2+12 read more ..

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Guest Mar 30, 2018

575

How many Vertical Asymptotes?

How many vertical asymptotes does the graph of have?

I set the denominator equal to 0 and found that x = 3, and x = -10. I thought this meant the answer to the question was 2, but it was wrong. Thanks in advance.

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Guest Mar 30, 2018

1218

Rational Expressions of Polynomials

Find all A and B such that for all x besides 3 and 5. Express your answer as an ordered pair in the form (A, B).

Not quite sure how to solve this. Thanks in advance.

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Guest Mar 30, 2018

911

Help please asap

The graph of $y = f(x)$ is shown below. Assume the domain of $f$ is $[-4,4]$ and that the vertical spacing of grid lines is the same as the horizontal spacing of grid lines.
read more ..

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Guest Mar 30, 2018

775

+4609

closed form.....help.....thanks...../.,

Find a closed form for the sequence: , , .

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tertre Mar 30, 2018

2074

+1243

Help

A weather forecast predicts that for each day from Monday to Friday this week, there is a $40\%$ chance of sun, a $25\%$ chance of getting 4 inches of rain, and a $35\%$ chance of getting 10 inches of rain. What is the expected value of the total number read more ..

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Lightning Mar 30, 2018

1846

+1243

Help

You have $5$ red shirts, $5$ green shirts, $6$ pairs of pants, $8$ green hats and $8$ red hats, all of which are distinct. How many outfits can you make consisting of one shirt, one pair of pants, and one hat without having the same color of shirts and read more ..

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Lightning Mar 30, 2018

2092

+1243

Geometry and Probability

A point with coordinates $(x,\ y)$ is randomly selected such that $0\leq x \leq10$ and $0\leq y \leq10$. What is the probability that the coordinates of the point will satisfy $2x+5y \geq 20$? Express your answer as a common fraction.

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Lightning Mar 30, 2018

All Questions ⁺⁰230838 Questions

A coffee shop sells bags of coffee for a regular price of

Why does the 'Post Answer' Button becomes locked?

How many bases $b$ are there such that $663_b$ is prime?

HELP

HELP

Percentages 2

geno is back!

Help, thanks!!!!!1

Percentage 1

shook

Find $a+b+c$, given that $x+y\neq -1$ and \begin{align} ax+by+c&=x+7,\\ a+bx+cy&=2x+6y,\\ ay+b+cx&=4x+y. \end{align}

Simplify Expressions

Rational or irrational

is there a difference? :repost

What is (f+g)(x)?

Two Quick Math questions

How many Vertical Asymptotes?

Rational Expressions of Polynomials

Help please asap

closed form.....help.....thanks...../.,

Help

Help

Geometry and Probability

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