All Questions

-1

525

+288

Probability and Dice

For a particular peculiar pair of dice, the probabilites of rolling 1,2,3,4,5 and 6, on each die are in the ratio 1:2:3:4:5:6. What is the probability of rolling a total of 7 on the two dice?

-----Thanks! read more ..

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madyl Apr 2, 2020

485

help

For what real values of c is x^2-8x+c the square of a binomial?

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Guest Apr 2, 2020

691

+280

Help would be appreciated:)

Angle α lies in quadrant II , and tanα=−125 . Angle β lies in quadrant IV , and cosβ=35 .
What is the exact value of sin(α+β) ?
sin(α+β) = { }

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auxiarc Apr 2, 2020

1203

Please help!

Two wheel gears are connected by a chain. The larger gear has a radius of 6 centimeters and the smaller gear has a radius of 4 centimeters. The smaller gear completes 28 revolutions in 15 seconds. What is the linear velocity of each of the gears in centimeters read more ..

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Guest Apr 2, 2020

884

angles

The ratio of the measures of the three angles in a triangle is 2:9:4. Find the measures of the angles.

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Guest Apr 2, 2020

634

Geometry

A right rectangular prism has a base area one-quarter the base area of a larger right rectangular prism. The height of the smaller prism is half the height of the larger one. What is the ratio of the volume of the smaller prism to the volume of the larger read more ..

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Guest Apr 2, 2020

593

trapezoid

An isosceles trapezoid has base angles of 45° and bases of lengths 8 and 14. The area of the trapezoid is?

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Guest Apr 2, 2020

366

Picture expired

When I looked here: https://web2.0calc.com/questions/the-closed-form-sum-of-12-1-2-2-2-2-3-n-2-n-1-for-n-gt-1-is-n-n-1-n-2-an-b-find-an-b
the picture was expired
can someone help me with this problem?

Guest Apr 2, 2020

3923

+11

Need help with a Physics problem.

A(n) 19 g object moving to the right at 39 cm/s overtakes and collides elastically with a 36 g object moving in the same direction at 19 cm/s. Find the velocity of the slower object after the collision. Answer in units of cm/s.

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SugaKookiesWithTae Apr 2, 2020

493

help

Find all real values of n that (n^2 - 82)^2 = 324.

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Guest Apr 2, 2020

442

help

Find the x-intercept and y- intercept of the line. 6x+2y=-18

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Guest Apr 2, 2020

789

+11

Need help with a work problem.

It takes 3.78 J of work to stretch a Hooke’s-law spring 14.2 cm from its unstressed length. How much the extra work is required to stretch it an additional 11.2 cm? Answer in units of J.

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SugaKookiesWithTae Apr 2, 2020

582

+34

Find all real values of p that satisfy the equation (p - 3)^2 = 100 help

Find all real values of p that satisfy the equation (p - 3)^2 = 100

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sloppy Apr 2, 2020

464

wait is this fr?

im from the year 2020 are any of you still alive, like bruh. this place looks like its been abandoned since 2006 oml. why are yall using this if there is an app called brainly which is better?

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Guest Apr 2, 2020

490

line

Write an equation of the line that passes through the points (1,4), (3,7)

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Guest Apr 2, 2020

Apr 1, 2020

539

+343

If you had to read the same book everyday, what will it be?

If you had to read the same book every day, what will it be?

off-topic

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nchang Apr 1, 2020

-1

674

+13

The centers of three non-intersecting circles lie on the same straight line.

The centers of three non-intersecting circles lie on the same straight line. Prove that if a fourth circle is tangent to all three of the given circles, then its radius is greater than that of at least one of the given three

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sukikaha07 Apr 1, 2020

-1

1074

+343

Let be a quadratic polynomial with complex coefficients whose coefficient is 1. Suppose the equation has four distinct solutions,

Let be a quadratic polynomial with complex coefficients whose coefficient is 1. Suppose the equation has four distinct solutions, . Find the sum of all possible values of .

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nchang Apr 1, 2020

568

help

Find all solutions to the equation in the interval [0,2pi]: cos(x)=sin(2x)

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Guest Apr 1, 2020

526

+24

Help

The equation $y = -4.9t^2 - 3.5t + 2.4$ relates the height $y$ (in meters) to the elapsed time $t$ (in seconds) for a ball thrown downward at 3.5 meters per second from a height of 2.4 meters from the ground. In how many seconds will the ball hit the ground? read more ..

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ILoveMySocks Apr 1, 2020

676

simple question, but I can't figure it out

Find the base so that

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Guest Apr 1, 2020

572

please help

Let and be positive real numbers so that Find

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Guest Apr 1, 2020

621

+24

Help!

If lines y=(2a-5)x-5 and 9y=(a+2)x-3 are perpendicular, what are all the possible values of a? Express your answers in decreasing order, separated by commas.

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ILoveMySocks Apr 1, 2020

-1

594

+202

Extra credit

In every class, there's now an Extra Credit Opportunity! Button. I dare you to click on it.

off-topic

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Impasta Apr 1, 2020

571

volume

A circular above ground pool has a height of 52 inches, and a volume of 1100 ft^3. What is the radius of the pool to the nearest tenth of a foot?

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Guest Apr 1, 2020

All Questions ⁺⁰234789 Questions

Probability and Dice

help

Help would be appreciated:)

Please help!

angles

Geometry

trapezoid

Picture expired

Need help with a Physics problem.

help

help

Need help with a work problem.

Find all real values of p that satisfy the equation (p - 3)^2 = 100 help

wait is this fr?

line

If you had to read the same book everyday, what will it be?

The centers of three non-intersecting circles lie on the same straight line.

Let be a quadratic polynomial with complex coefficients whose coefficient is 1. Suppose the equation has four distinct solutions,

help

Help

simple question, but I can't figure it out

please help

Help!

Extra credit

volume

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