All Questions

-1

531

please helpz!

Solve this trig equation.

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Guest Aug 21, 2020

-1

477

Help Please?

Find all possible integer values of n such that the following system of equations has a solution for z: \(\begin{align*} z^n &= 1, \\ \left(z + \frac{1}{z}\right)^n &= 1. \end{align*}\)
I just have no idea what to do.
read more ..

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Guest Aug 21, 2020

-1

566

PLZ HELP ME!!! I HVE TEST TOMORROW AND DONT KNOW HOW TO DO THIS PROBLEM

2x−4y=20

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RandomThoughts Aug 21, 2020

-1

696

+133

Distributions Question

(a) There are n chairs in a row. Find the number of ways of choosing k of these chairs, so that no two chosen chairs are adjacent.
(b) There are 10 chairs in a circle, labelled from 1 to 10. Find the number of ways of choosing 3 of these chairs, read more ..

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SpicyP Aug 21, 2020

-1

652

NEED HELP ASAP

One card is to be drawn from a deck of 52 cards. The deck includes four types of cards; red hearts, red stars, black triangles, black circles. Each type has 13 cards, numbered 1 − 13. What is the probability of drawing a red one, a black three, or a six read more ..

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Guest Aug 21, 2020

-1

530

need help

Write the equation of a line that is perpendicular to the given line and passes through a given point

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Guest Aug 21, 2020

-1

484

+109

Please help me asap!! Thank you!!

1.) Let be defined by

read more ..

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dp1806 Aug 21, 2020

-1

558

help pleasseeeee

How to find answer?

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Guest Aug 21, 2020

Aug 20, 2020

-1

516

geometry

If JL = 30, JK = 18, and LM = 6, then the value of LN is:

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Guest Aug 20, 2020

-1

560

feeling stuck

Find the surface area of the composite figure.

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Guest Aug 20, 2020

-1

487

help please!

a metallurgist has an alloy with 10% titanium and an alloy with 20% titanium. he needs 100 grams of an alloy with 16% titanium. how much of each alloy should be mixed to attain the 100 grams of alloy with 16% titanium?

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Guest Aug 20, 2020

-1

456

Vector Geometry

Let and be vectors such that and Find

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Guest Aug 20, 2020

-1

498

please help

I'm really lost with these.

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Guest Aug 20, 2020

-1

753

Can integers be terminating decimals?

Can integers be terminating decimals? Such as 1, 2, 3, ...
edit: srry if this is kinda off topic

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ScaryMath Aug 20, 2020

-1

616

HELPPP

Rationalize the denominator:

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Guest Aug 20, 2020

436

help please

We are given 8 chiildren: 4 boys and 4 girls. We are dividing them into 2 groups (A and B) - 4 people each. What is the propability that 4 boys (and so 4 girls) will be in the same group?

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Guest Aug 20, 2020

770

Any help appreciated pls give answer and explanation

The positive integers 1 through 49 are divided into k disjoint subsets so that no two integers whose sum is divisible by 10 are in the same subset. For example, 13 and 37 cannot be in the same subset. What is the smallest possible value of k?

Ok, read more ..

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Guest Aug 20, 2020

555

its been an hour...

https://web2.0calc.com/questions/help_9603

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Guest Aug 20, 2020

492

help on easy surface area q

bridget places a box that is 4 by 6 by 8 on the floor. She then places a 2 by 3 by 5 box on top of the first box, forming a 2 box tower. She will paint all the surfaces she can paint without moving either of the boxes. She wants to paint as little as possible, read more ..

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Guest Aug 20, 2020

458

geometry math help!

Three circles are drawn, so that each circle is externally tangent to the other two circles. Each circle has a radius of 2. A triangle is then constructed, such that each side of the triangle is tangent to two circles, as shown below. Find the perimeter read more ..

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Guest Aug 20, 2020

356

geometry question

How do you find x?

Guest Aug 20, 2020

443

help!

How many pairs of positive integers (x,y) satisfy the equation ?

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Guest Aug 20, 2020

543

+479

Helppp

https://web2.0calc.com/questions/help-asap_84023

I'd like a full explanation, please!

HelpBot Aug 20, 2020

435

please help

Of the three-digit integers greater than 700, how many have two digits that are equal to each other and the remaining digit different from the other two

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Guest Aug 20, 2020

952

Help with modular arithmetic

John and Ling start their new jobs on the same day. John's schedule is 4 workdays followed by 1 day off. Ling's schedule is 7 workdays followed by 2 days off. On how many days during their first year of work (365 days) do John and Ling have the same day off? read more ..

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Guest Aug 20, 2020

All Questions ⁺⁰237665 Questions

please helpz!

Help Please?

PLZ HELP ME!!! I HVE TEST TOMORROW AND DONT KNOW HOW TO DO THIS PROBLEM

Distributions Question

NEED HELP ASAP

need help

Please help me asap!! Thank you!!

help pleasseeeee

geometry

feeling stuck

help please!

Vector Geometry

please help

Can integers be terminating decimals?

HELPPP

help please

Any help appreciated pls give answer and explanation

its been an hour...

help on easy surface area q

geometry math help!

geometry question

help!

Helppp

please help

Help with modular arithmetic

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