All Questions

521

help

A positive integer has the same remainder of 2019 when divided by 2020 and 2021. What is the remainder when this number is divided by 235?

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Guest Dec 20, 2019

728

Help please

How many integers in the list 25,26,27... 250 are not perfect cubes?

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Guest Dec 20, 2019

450

Help

If x is an element of the set{-1,1,2}and y is an element of , {-2,-1,0,1,2}how many distinct values of x^y are positive?

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Guest Dec 20, 2019

458

what is the arctan of .301?

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Guest Dec 20, 2019

2434

Homework help

In how many ways can you spell the word ROOM in the grid below? You can start on any letter R, then on each step you can step one letter in any direction (up, down, left, right, or diagonal). read more ..

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Guest Dec 20, 2019

1431

How many times does the digit 9 appear in the list of all integers from 1 - 500?

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Guest Dec 20, 2019

694

help

In the diagram, ABCD is a square with a side length of 20 with four inscribed quarter circles as shown. Find the area of the yellow region.

read more ..

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Guest Dec 20, 2019

889

Help?

For what values of $j$ does the equation $(2x+7)(x-5) = -43 + jx$ have exactly one real solution? Express your answer as a list of numbers, separated by commas.

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Guest Dec 20, 2019

754

question help

If the quadratic $x^2+4mx+m$ has exactly one real root, find the positive value of $m$.

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Guest Dec 20, 2019

-1

1126

+288

Hard Circles Problem

Two circles are externally tangent at point , as shown. Segment is parallel to common external tangent . Let be on so that is tangent to both circles.
read more ..

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madyl Dec 20, 2019

645

help

If the area of the red circles is 20 pi. What is the area of the yellow region?

ElectricPavlov ●●

Guest Dec 20, 2019

687

Help!

If m is a real number and x^2+mx+4 has two distinct real roots, then what are the possible values of m? Express your answer in interval notation.

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Guest Dec 20, 2019

895

Graph g(x)=−2x^2−12x−24 .

Please help ASAP me I have only today todo this

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Guest Dec 20, 2019

669

Which graph represents g(x)=−(x+3)^2−5 ?

Please help ASAP me I have only today todo this

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Guest Dec 20, 2019

865

help

Katie is teaching a class of thirty pupils, of which fourteen are girls. She knows that there are twenty-two pupils who are right-handed.
What is the minimum number of girls who are right-handed in this class?

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Guest Dec 20, 2019

1190

+67

Finding angles from sides of a triangle

I need help with how to solve this problem, not the actual answer. Thanks in advance!

(Capital letters are angles, lowercase letters are sides)
read more ..

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Darry Dec 20, 2019

451

help

In which row does 2020 appear in the given figure?

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Guest Dec 20, 2019

670

help

Solve for x:

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Guest Dec 20, 2019

856

+67

What causes repetition in cosine stacking?

cos(-56)= 0.559192903471
cos(cos(-56))= read more ..

Darry Dec 20, 2019

1800

Logarithms, please help.

Thank you in advance.

ElectricPavlov ●

Guest Dec 20, 2019

1374

How many ordered pairs of positive integers $(m,n)$ satisfy $\text{GCD}(m,n) = 3$ and $\text{LCM}(m,n) = 108?$

please help asap

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Guest Dec 20, 2019

625

help

The diagram above shows two congruent right triangles 12-16-20 overlapping to form a dark blue region.
Find the area of this dark blue region.

read more ..

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Guest Dec 20, 2019

1712

How many pairs of perfect squares between 1 and 100 inclusive differ by a prime number?

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Guest Dec 20, 2019

546

Stoichiometry: N 2 + H 2 → NH 3 How many moles of ammonia are produced when 6.00 moles of hydrogen gas react with nitrogen gas?

Explanation would be helpful but not really needed :)

CharlieMomo Dec 20, 2019

All Questions ⁺⁰237780 Questions

help

Help please

Help

what is the arctan of .301?

Homework help

How many times does the digit 9 appear in the list of all integers from 1 - 500?

help

Help?

question help

Hard Circles Problem

help

Help!

Graph g(x)=−2x^2−12x−24 .

Which graph represents g(x)=−(x+3)^2−5 ?

help

Finding angles from sides of a triangle

help

help

What causes repetition in cosine stacking?

Logarithms, please help.

How many ordered pairs of positive integers $(m,n)$ satisfy $\text{GCD}(m,n) = 3$ and $\text{LCM}(m,n) = 108?$

help

How many pairs of perfect squares between 1 and 100 inclusive differ by a prime number?

Stoichiometry: N 2 + H 2 → NH 3 How many moles of ammonia are produced when 6.00 moles of hydrogen gas react with nitrogen gas?

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