All Questions

756

+1450

Hey! Really sorry, but just in case this has slid to the bottom and nobody sees it, I kindof need some urgent help with this:

Hey! Really sorry, but just in case this has slid to the bottom and nobody sees it, I kindof need some urgent help with this:

https://web2.0calc.com/questions/part-a-find-the-sum
read more ..

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AnonymousConfusedGuy Jan 10, 2018

1227

+107

hope your have a good day

hope you having a good day if not stay strong and determined you can do anything you set your mind to

off-topic

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foxy02 Jan 10, 2018

995

James threw a ball from the roof of a building.

James threw a ball from the roof of a building. The ball fell 3 feet in the first second, 9 feet in next second, and 27 feet in the third second. Which expression represents the distance the ball fell at the nth second?
A 3n
B read more ..

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Guest Jan 10, 2018

896

PLEASE HELP!

The final mathematics exam at a certain school contains questions of equal difficulty, and is matched to the students' past performance in mathematics. Four students who take the exam have averages of 25%, 50%, 60% and 80%. What is the probability that read more ..

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Guest Jan 10, 2018

3440

Please Help

The circle with center O is inscribed in kite ABCD. AB is 24 cm and BC is 18 cm. D is 90 degrees.
Find the length of the radius if the circle, in cm.

hectictar ●●●

Guest Jan 10, 2018

1279

Please Help!

If the height of an equilateral triangle is also a root of the equation y^4-3y^2-270,
then the area of the triangle, in cm^2, is

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Guest Jan 10, 2018

1378

+213

Elimination System of Equations Challenge Problem

It's a story problem so be courteous:

A zookeeper needs to mix a solution for baby penguins so it has the right amount of medicine. Solution A has 20% medicine. Solution B has 4% medicine. How many ounces of each solution are needed read more ..

ElectricPavlov ●

OwenT154 Jan 10, 2018

1170

+956

Log function?

Which of the following is NOT true of the graph of f(x)=logx?

1) As the value of x increases, the slope of the tangent line will become less steep.
2) The graph has a vertical asymptote read more ..

ElectricPavlov ●

Julius Jan 10, 2018

1666

+956

Rate of Change?

The population of a town is increasing at a rate of 1.4% annually. The current population of the town is 2 000. Calculate the average rate of change over the next 10 years.

a) 31.95 people/year
b) 2 298 people/year read more ..

hectictar ●●●

Julius Jan 10, 2018

1081

+239

Binomial Theorem

If n Cr, denotes the coefficient of xr in the expansion of (1 + x) n, prove that:
n Cr + 2(n Cr+1) + n Cr+2 = n+2 Cr+2

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OldTimer Jan 10, 2018

1085

+27

Help! Please

The terminal side of θ passes through the point (−3,7).
What is the exact value of sinθ in simplified form?

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mathretarted Jan 10, 2018

2352

+27

I need help Algebra 2

A circle has a radius of 63 centimeters.
What is the arc length intercepted by a central angle that measures 2π/9 radians?
Express the answer in terms of π .

hectictar ●

mathretarted Jan 10, 2018

2470

help please

MathWizard likes to play a fun number trick on her friends. She tells them to think of a number. She then tells them to subtract their number from 2 and multiply the result by 5. To this product she tells them to add half the difference when 24 is subtracted read more ..

hectictar ●●●

Guest Jan 10, 2018

Jan 9, 2018

731

+1438

help plz im having some good old trouble with this one.

Ellen baked 2 dozen cupcakes of which half contained chocolate, two-thirds contained raisins, one-fourth contained chocolate chips, and one-sixth contained nuts. What is the largest possible number of cupcakes that had none of these ingredients? read more ..

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SmartMathMan Jan 9, 2018

692

Quick question i need help on! PLEASE HELP MEEEEE!

(2x2)-4

TheXSquaredFactor ●

Guest Jan 9, 2018

1495

+1438

Help plz. ANYONE OUT THERE?

There are 42 people in pilates class. Today, 36 of them brought yoga mats, 26 of them brought eco-friendly water bottles, and 20 of them remembered to bring both yoga mats and water bottles. How many people had to suffer through class having neither a yoga read more ..

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SmartMathMan Jan 9, 2018

2355

+1438

hey could i get some help?

Amaretta's birthday is July 27, and her brother Enzo's birthday is September 3. Every year, Amaretta and Enzo celebrate by eating cake every day from Amaretta's birthday through Enzo's birthday (including both birthdays). If they did this for the first read more ..

hectictar ●

SmartMathMan Jan 9, 2018

923

+1438

help what is 1+1?

WHAT IS 1+1?

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SmartMathMan Jan 9, 2018

702

+1438

help

What is the 1000th positive integer with an odd number of digits?

hectictar ●

SmartMathMan Jan 9, 2018

1260

+1450

Arithmetic Sequences

The measures of the three angles of a triangle form an arithmetic sequence. What must be the measure, in degrees, of at least one of its angles?
read more ..

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AnonymousConfusedGuy Jan 9, 2018

1046

+1438

help plz

English has 6 letters that can be vowels. This includes Y, which can be either a consonant or a vowel; for this problem, we'll consider Y a vowel.
The other 20 English letters are always consonants.
How many two-letter "words" can we make from read more ..

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SmartMathMan Jan 9, 2018

1735

Help!

Triangle ABC is an isosceles right triangle with AC=4 square root 3 cm. F is the midpoint of hypotenuse AC,
and triange DEF is equilateral. Find the perimeter of triangle DEF.

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Guest Jan 9, 2018

707

Help!

The table shows values for functions f(x) and g(x)

What is the solution to f(x)=g(x)
Select each correct answer read more ..

hectictar ●

Guest Jan 9, 2018

All Questions ⁺⁰230604 Questions

Hey! Really sorry, but just in case this has slid to the bottom and nobody sees it, I kindof need some urgent help with this:

hope your have a good day

James threw a ball from the roof of a building.

PLEASE HELP!

Please Help

Please Help!

Elimination System of Equations Challenge Problem

Log function?

Rate of Change?

Binomial Theorem

Help! Please

I need help Algebra 2

help please

help plz im having some good old trouble with this one.

Quick question i need help on! PLEASE HELP MEEEEE!

Help plz. ANYONE OUT THERE?

hey could i get some help?

help what is 1+1?

help

Arithmetic Sequences

help plz

Help!

Help!

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