All Questions

422

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

622

Help please

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

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Guest Dec 20, 2019

356

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

366

what is the arctan of .301?

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Guest Dec 20, 2019

2333

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

1414

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

599

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

790

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

643

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

1064

+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

545

help

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

ElectricPavlov ●●

Guest Dec 20, 2019

576

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

797

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

610

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

754

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

1103

+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

352

help

In which row does 2020 appear in the given figure?

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Guest Dec 20, 2019

557

help

Solve for x:

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Guest Dec 20, 2019

767

+67

What causes repetition in cosine stacking?

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

Darry Dec 20, 2019

1700

Logarithms, please help.

Thank you in advance.

ElectricPavlov ●

Guest Dec 20, 2019

1291

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

515

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

1665

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

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Guest Dec 20, 2019

450

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 ⁺⁰230670 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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