All Questions

394

+22

Please help I am really confused!!!

Eight trials are simulated. The results are shown in the table.

read more ..

ninjahelper5 Aug 18, 2021

-1

366

help with counting

English has letters that can be vowels. This includes Y, which can be either a consonant or a vowel; for this problem, we'll consider Y a consonant. The other English letters always consonants. How many two-letter "words" can read more ..

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Guest Aug 18, 2021

436

+179

reposted a guest's question.

Find the domain and range of g(x,y) = {mod((x), 2) > 0, -1} in interval notation.

TheGreatestOofman Aug 18, 2021

496

An interesting integral

Evaluate the following integral

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Guest Aug 18, 2021

519

not showing the equation x answer

the calculator not show the answer to a equation when i click enter after, i typed the equation my teacher gave me

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Guest Aug 18, 2021

574

+191

I attempted to just use the regular way to find the inverse and plug in but my answer is wrong

If ,

Any help would be appreciated.

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OrangeJuicy Aug 18, 2021

647

physics please help!!

Problem on Newton's laws:
An object is hung from a spring balance suspended from the roof of a lift. When the lift is descending with uniform acceleration of the balance indicates a weight of 245 N. When the lift is ascending with uniform read more ..

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Guest Aug 18, 2021

487

algebra

Two mechanics worked on a car. The first mechanic worked for 20 hours, and the second mechanic worked for 5 hours. Together they charged a total of 2150 dollars. What was the rate charged per hour by each mechanic if the sum of the two rates was 145 dollars read more ..

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Guest Aug 18, 2021

463

help geometry

Circle O and circle P, with radii 3 and 8, respectively, are both tangent to line l at H. Enter all possible lengths of OP separated by commas.

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Guest Aug 18, 2021

497

need help

As shown in the diagram, NM is the median of trapezoid ABCD and PQ is the median of trapezoid ABMN. We know AB = 5 and DC = 19. Find PQ.

read more ..

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Guest Aug 18, 2021

485

help plz

Shane deposited 60 dollars in a savings account, earning 5% interest, compounded annually.

To the nearest cent, how much interest will he earn in 3 years?

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Guest Aug 18, 2021

457

+69

Dice probability question

Omar has four fair standard six-sided dice. Omar invented a game where he rolls his four dice over and over again until the number 1 does not appear on the top face of any of the dice. Omar wins the game if on that roll the top faces of his dice show at read more ..

ddocm Aug 18, 2021

478

+69

sequence question

A sequence is defined by a1 = 1 and an = a 2 n−1 + 1 for all n ≥ 2. Find the units digit of a1000

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ddocm Aug 18, 2021

-2

352

double the quotient of c and 7

Guest Aug 18, 2021

445

help with coordinates

The point Z(-3,-2) is rotated 90 degrees clockwise around the origin. What are the coordinates of the resulting point, Z'?

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Guest Aug 18, 2021

452

Coordinates

Find the equation of the line that is parallel to the line 4x - 2y = 8 and which passes through the point (0,-8).

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Guest Aug 18, 2021

408

HELP!!

For a certain value of k, the system

has no solutions. What is this value of k?

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Guest Aug 18, 2021

491

+179

help pls

g(x,y) = {(mod((x), 2) > 0), -1}

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TheGreatestOofman Aug 18, 2021

529

+80

HELP NEED TMR

Sasha spent 1/4 of her money on 18 pins and 4 keychains. The cost of 1 keychain is thrice as much as the cost of 1 pin. She bought some more keychains as much as the cost of 1 pin. She bought some more keychains with 1/2 of her remaking money. How many read more ..

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DoctorOcopisMonOct Aug 18, 2021

-2

457

I don't understand

Could you explain the steps, I keep getting stuck and getting decimals.

1.
3x-y+4z=15 read more ..

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Guest Aug 18, 2021

484

need help

Given the equation a+b = 30 , where a and b are positive integers, how many distinct ordered-pair solutions (a,b) exist?

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Guest Aug 18, 2021

374

Complex root

If 3 + 2i is a solution for x^2 + bx + c = 0, where b and c are real numbers, then what are b and c?

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Guest Aug 18, 2021

Aug 17, 2021

385

help geometry

What is the number of degrees the minute hand of a clock moves between 10:21 pm and10:34 pm on the same day?

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Guest Aug 17, 2021

402

Help pleaseeee

The ninth phase of the training was probably the most difficult. Astronaut #1 did the best. He only had to start over once every 30 seconds. Astronaut #2 performed very poorly. He had to start every 6 seconds. How many seconds did it take the read more ..

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Guest Aug 17, 2021

336

help geometry

We can find an acute triangle with the three altitude lengths 1, 3, and h, if and only if h^2 belongs to interval (p,q). Find (p, q).

Guest Aug 17, 2021

All Questions ⁺⁰238436 Questions

Please help I am really confused!!!

help with counting

reposted a guest's question.

An interesting integral

not showing the equation x answer

I attempted to just use the regular way to find the inverse and plug in but my answer is wrong

physics please help!!

algebra

help geometry

need help

help plz

Dice probability question

sequence question

double the quotient of c and 7

help with coordinates

Coordinates

HELP!!

help pls

HELP NEED TMR

I don't understand

need help

Complex root

help geometry

Help pleaseeee

help geometry

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