All Questions

-1

1142

+386

HELP

If the square root of the length of the hypotenuse of a right triangle is 2 units, what is the sum of the squares of the length of the two other sides?

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Paresh Mar 25, 2020

-1

600

+318

Pre Calc PLEASE HELP!

The concentration C(t) of a drug administered to a patient intravenously jumps to its highest level almost immediately. The concentration subsequently decays exponentially according to the law C(t)=C0e^-kt where C0=C(0). The physician adminstering the read more ..

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mharrigan920 Mar 25, 2020

548

if 2+2=4 and 4+4=8 what book are you reading now.

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Guest Mar 25, 2020

-1

515

+386

18 is not the answer

In right triangle $PQR$, we have $\angle Q = \angle R$ and $PR = 6\sqrt{2}$. What is the area of $\triangle PQR$?

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Paresh Mar 25, 2020

327

help

A deck of playing cards has 52 cards, of which 12 are face cards. If you shuffle the deck well and turn over the top 3 cards, one after the other, what's the probability that all 3 are face cards?

Guest Mar 25, 2020

-2

839

+318

PreCalc

The number of people in a community who became infected during an epidemic t weeks after its outbreak is given by the function f(t)=20,000/1+ae^-kt where 20,000 people of the community are susceptible to the disease. Assume that 5000 peoeple were infected read more ..

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mharrigan920 Mar 25, 2020

-1

663

+386

help

In right triangle $PQR$, we have and $PR = . What is the area of $\triangle PQR$?

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Paresh Mar 25, 2020

-2

740

+318

PreCalc Please help

In region A, the average pH value of the rainfall is
3.63.6.
Find the average concentration of hydrogen ions
left bracket [H+] read more ..

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mharrigan920 Mar 25, 2020

475

confused.com

if 20% is equal to 81, how i find what 100% equals

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Guest Mar 25, 2020

554

+208

math

I'm trying to find the x and y-intercepts but I don't know where to start

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monkeyree1124 Mar 25, 2020

435

Please help.

A bag contains five white balls and five black balls. Your goal is to draw two black balls. You draw two balls at random. Once you have drawn two balls, you put back any white balls, and redraw so that you again have two drawn balls. What is the probability read more ..

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Guest Mar 25, 2020

-1

1134

+386

lol

A square and a right triangle have equal perimeters. The legs of the right triangle are 20 inches and 15 inches. What is the area of the square, in square inches?

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Paresh Mar 25, 2020

-1

441

Probability Question-Confused

From a standard deck of cards, the four Aces, four 2's, four 3's, and four 4's are drawn, forming a smaller deck of 16 cards. All 16 cards are dealt at random to four players, so that each player gets four cards. What is the probability that each player read more ..

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Guest Mar 25, 2020

-1

1348

+386

HElP

Many television screens are rectangles that are measured by the length of their diagonals. The ratio of the horizontal length to the height in a standard read more ..

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Paresh Mar 25, 2020

480

help

write down the square number between 26 and 63 that is odd

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Guest Mar 25, 2020

448

HELP ME

Simplify the expression .

off-topic

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Guest Mar 25, 2020

461

HELP PLEASE CPHILL

Simplify to a much simpler expression of the form , where and are positive integers.

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Guest Mar 25, 2020

1091

HELP PLEASE

Simplify to a much simpler expression of the form , where and are positive integers.

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Guest Mar 25, 2020

838

What is the volume of a cylinder with a height of 2.3 in and a base with a diameter of 15.2 in, to the nearest tenth of a cubic inch?

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Guest Mar 25, 2020

1844

help

When the sun shines at a 60° angle to the ground, Nadia’s shadow is 31 in. long. To the nearest inch, how tall is Nadia?

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Guest Mar 25, 2020

513

I need help with this!It would really help!

1.Solve by factorisation:
2x2+3x-20=0

2.: read more ..

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Guest Mar 25, 2020

727

+288

Subset Question

Try to create a subset from {1,2,3...,2019} so that in the subset every two numbers' sum is a multiple of 20. What is the maximum size of this subset?

-----Thanks!

Infinite Series

Consider the infinite series defined by:

A) What is the value of r from the ratio test?
read more ..

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auxiarc Mar 25, 2020

All Questions ⁺⁰232936 Questions

HELP

Pre Calc PLEASE HELP!

if 2+2=4 and 4+4=8 what book are you reading now.

18 is not the answer

help

PreCalc

help

PreCalc Please help

confused.com

math

Please help.

lol

Probability Question-Confused

HElP

help

HELP ME

HELP PLEASE CPHILL

HELP PLEASE

What is the volume of a cylinder with a height of 2.3 in and a base with a diameter of 15.2 in, to the nearest tenth of a cubic inch?

help

I need help with this!It would really help!

Subset Question

Infinite Series

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