All Questions

322

factors

How many natural-number factors does N have if N=2^4*3^8*5^2*7^2?

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Guest Jan 23, 2021

303

algebra

The expression 6y^2 - y - 15 can be rewritten as A(y - B)(y - C). Find A + B + C.

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Guest Jan 23, 2021

611

Help

Allie and Ezra are sitting on flagpoles, throwing beanbags at each other. Allie's flagpole is 35 feet tall. Ezra's flagpole is 27 feet tall. The flagpoles stand 15 feet apart. How far, in feet, does Ezra have to throw a beanbag to reach Allie? read more ..

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Guest Jan 23, 2021

306

algebra

Each gallon of paint covers 200 square feet. I have to paint one side of a wall that is 12 meters tall and 250 meters long. If a foot is approximately 0.3048 meters, then what is the smallest whole number of gallons I can buy and have enough paint read more ..

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Guest Jan 23, 2021

770

Determine the value of ? in the figure below.

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Guest Jan 23, 2021

308

prime factors

How many positive divisors of 30 are prime?

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Guest Jan 23, 2021

325

range

Given that f(x) = pi^x + x^pi + 2^x + x^2, what is the range of f(x) on the interval [0, ∞)?
Give your answer in interval notation.

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Guest Jan 23, 2021

531

+33

Binomial Coefficients

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guest.exe Jan 23, 2021

398

modular inverse

what is the modular inverse of 11 + 2 , modulo 1000?
Express your answer as an integer from 0 to 999 , inclusive.

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Guest Jan 23, 2021

344

congruent

What is the unique three-digit positive integer satisfying 100x = 11 (mod 997)

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Guest Jan 23, 2021

370

number theory

What is the smallest whole number that has a remainder of 1 when divided by 4, a remainder of 2 when divided by 3, and a remainder of 2 when divided by 5?

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Guest Jan 23, 2021

295

number theory questions

Find all ordered pairs (m,n) of integers such that

(m^2 -4 ) (n^2 -4) +m+n =2021

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Guest Jan 23, 2021

332

Write 2020^2021 -2020^1011+2020 as a sum of two perfect squares

Guest Jan 23, 2021

405

can you help me with this question

•Hamdah works mowing lawns and babysitting. She earns $8.90 an hour for mowing and $7.20 an hour for babysitting. How much will she earn for 7 hours of mowing and 1 hour of babysiting

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Guest Jan 23, 2021

521

solid mensuration

The volume of the apple juice in a glass whose shape is an inverted frustum of a cone is 1176π mm³. The depth of the juice is 18mm.
Find the radius of the lower base if the product of its radii is 60 mm². *

a.5 mm read more ..

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Guest Jan 23, 2021

421

am very stuck

Let $n$ be a positive integer greater than or equal to $3$. Let $a,b$ be integers such that $ab$ is invertible modulo $n$ and $(ab)^{-1}\equiv 2\pmod n$. Given $a+b$ is invertible, what is the remainder when $(a+b)^{-1}(a^{-1}+b^{-1})$ is read more ..

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Guest Jan 23, 2021

517

+126

right angle trig question

ABCD is a regular tetrahedron (right triangular pyramid). If M is the midpoint of line CD, then what is tan(angleAMB)?

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geoNewbie21 Jan 23, 2021

1049

solid mensuration

The volume of a conical frustum is 2401π cu. cm. If the radius of the lower base is 14 cm and the altitude is 21-cm.
Calculate the lateral area of the conical frustum. *

a.1452 sq. cm read more ..

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Guest Jan 23, 2021

511

help math

A square sheet of paper ABCD is folded such that B falls on the midpoint M of CD. In what ratio does the crease divide BC?

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Guest Jan 23, 2021

417

math help

Math help: An international food festival charges for admission and for each sample of food. Admission and 4 samples cost $ 6.75. Admission and 9 samples cost $ 11.75. Write a linear function rule read more ..

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Guest Jan 23, 2021

360

PLEASE I NEED HELP

In the triangle ABC,m(∠BAC)=85∘, AD⊥BC,D∈BC,(AM)≅(MC),M∈(AC) Lines AD and BM intersect in P. If the triangle ABP is an isosceles triangle and BD=1/2 AC find the measures of angles B and C

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PlzHelpMeOut Jan 23, 2021

487

+328

Tony and his grandma's hike

Tony and his grandma went hiking together. Grandma was slow but steady and maintained the same speed throughout. Tony accompanied grandma at her pace forthe first 30 minutes. Then he walked ahead for the next 20 minutes at 4 miles an hour. And the next read more ..

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Potatobird Jan 23, 2021

411

x-y coordinates

Two sides of a square lie on the straight lines:-
\[2x+3y+7=0\]
And
\[2x+3y+11=0\]

What is the area of the square?

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Guest Jan 23, 2021

464

+328

John's Family trip

San Francisco is approximately 60 miles from San Jose. John’s family travelled from San Francisco to San Jose averaging 40 miles per hour, but on the way back, due to heavy traffic, they only averaged 24 miles per hour. What is the average speed of the read more ..

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Potatobird Jan 23, 2021

All Questions ⁺⁰234777 Questions

factors

algebra

Help

algebra

Determine the value of ? in the figure below.

prime factors

range

Binomial Coefficients

modular inverse

congruent

number theory

number theory questions

Write 2020^2021 -2020^1011+2020 as a sum of two perfect squares

can you help me with this question

solid mensuration

am very stuck

right angle trig question

solid mensuration

help math

math help

PLEASE I NEED HELP

Tony and his grandma's hike

x-y coordinates

John's Family trip

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