All Questions ⁺⁰232855 Questions

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397

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help simplify

Simplify $\sqrt{420 - \sqrt{420 - \sqrt{420 - \sqrt{420 - \dotsb}}}}$.

Guest Mar 31, 2021

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389

1

word problem

An animal collector just added some new turtles and penguins to his animal collection. He isn’t sure how many of each animal he has, though. If the animal collector knows that there are 13 heads and 34 feet total, how many penguins did he add to the collection? read more ..

ElectricPavlov ●

Guest Mar 31, 2021

0

1

521

1

no title

A student council collects aluminum pop tabs to raise money to buy a wheelchair. A company buys the pop tabs for $0.88 per kilogram.
 
If 1267 pop tabs have a mass of one pound, how many pop tabs are needed to purchase a wheelchair read more ..

ElectricPavlov ●

Guest Mar 31, 2021

+5

479

2

+379

Help. Thanks.

If the least common multiple of a and b is 120, and the ratio of a to b is 3:4, then what is their greatest common divisor?

calvinbun Mar 31, 2021

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321

0

Jack and Jill went Taco Shack for lunch.

Jack and Jill went Taco Shack for lunch. Jack ordered three tacos and three burritos for lunch and his bill totaled $11.25. Jill paid $6.25 for one taco and two burritos.
b) Write an equation to represent Jack’s lunch order.

Guest Mar 31, 2021

0

469

1

+321

pls help

itachiuchihakujo Mar 31, 2021

0

513

1

Triangle Centers

If Z is the circumcenter of triangle QRS find each measure
QR=
RZ=
XS=
ZS= <#> WZ=

Guest Mar 31, 2021

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689

1

arcs

Find the length of arc JM. Use 3.14 for pi. Round to the nearest tenth.

Guest Mar 31, 2021

0

496

1

All the roots of are real, where and are real numbers. Prove that all the roots of are real, for any real number

All the roots of are real, where and are real numbers. Prove that all the roots of are real, for any real number

Guest Mar 31, 2021

+6

475

2

+379

Help Pls, thank you.

Help Pls, thank you.

calvinbun Mar 31, 2021

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370

1

analytic geometry

Which of the following is the equation of the line that is perpendicular to y = -1/8*x - 2 and goes through the point (-2,-3)?

Guest Mar 31, 2021

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263

0

Graphing Inequalities

Which of the following inequalities is graphed below?

Guest Mar 31, 2021

+5

438

2

+379

Help. TYSM.

A number n has 3 divisors. How many divisors does n2 have?

calvinbun Mar 31, 2021

+1

388

1

algebra

The average (arithmetic mean) of Huajie’s six test scores is 89. What must he score on his seventh test to average a score of 90 on all seven tests?

Guest Mar 31, 2021

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524

1

ratio question

In Joe's fish tank, there are 9 goldfish and 13 snails. How does the ratio 9:22 describe Joe's fish tank?

A. The ratio 9:22 compares the number of snails to the total number of animals.
B. The ratio 9:22 compares the number read more ..

itachiuchihakujo ●

Guest Mar 31, 2021

+1

403

2

help on conversion

If 5 glips equals 2 glups and 3 glups equals 2 glops, then how many glips equal 1 glop? Express your answer as an improper fraction.

Guest Mar 31, 2021

0

394

1

Inequality

Solve the inequality 29/289*z < 16/161*z - 16.

Guest Mar 31, 2021

+4

428

3

+379

Help, thank you!

What is the smallest positive integer n such that 2n is a perfect square and 3n is a perfect cube?

calvinbun Mar 31, 2021

0

361

1

no title

Marian bought a 2L bottle of fruit juice for $5.50. Ivan bought a 0.75 L bottle of the same juice for $2.95. Which was the better buy? How much money would you save if you purchased 12 L of the juice?

Guest Mar 31, 2021

0

353

1

inequality problem

Solve the inequality 4(a+6) >= -5(a+3).

Guest Mar 31, 2021

0

476

1

no title

Marian bought a 2L bottle of fruit juice for $5.50. Ivan bought a 0.75 L bottle of the same juice for $2.95. Which was the better buy?

Guest Mar 31, 2021

0

372

3

Probability

Stephen reaches into a bag of marbles and pulls one out at random. What is the probability that he pulls out a marble that is not strippped/swirled?

read more ..

Guest Mar 31, 2021

+1

368

2

+321

Pls Help

itachiuchihakujo Mar 31, 2021

0

407

1

Millenium Problem - P vs NP

I'm trying to do the P vs NP problem, but I don't necessarily understand it. Would anyone mind explaining it a bit more?

Guest Mar 31, 2021

0

283

1

linear algebra

Let A be a matrix, and let x and y be linearly independent vectors such that
Ax = y, Ax = -2x + 3y
Then we have that A^5*x = ax + by
for some scalars a and b. Find the ordered pair (a,b).

Guest Mar 31, 2021

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