All Questions

290

coordinates

What is the number of square units in the area of trapezoid ABCD with vertices A(0,0), B(0,-2), C(4,0), and D(4,7)?

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Guest Nov 29, 2021

340

Coordinates

The smallest distance between the origin and a point on the graph of y = (x^2 - 1)/3 can be expressed as sqrt(a)/b, where a and b are positive integers such that a is not divisible by the square of any integer greater than one. Find a + b.

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Guest Nov 29, 2021

399

Inequality

Let a, b, and c be positive real numbers. Prove that
a^2 + b^2 + c^2 >= ab + ac + bc.

Under what conditions does equality occur? read more ..

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Guest Nov 29, 2021

404

+168

Interest

Hello all,
I posted a similar question earlier, though I forgot to mention a key fact, and it is this, the starting value is unkown.

Annual interest rate of 5 per cent applied monthly (each month, balance goes up by 5/12 read more ..

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HoldMyBeer Nov 29, 2021

423

Algebra

Rationalize the denominator of $\frac{1}{\sqrt[3]{2} + \sqrt{16}}$

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Guest Nov 29, 2021

251

Hard algebra

Find all possible integer values of n such that the following system of equations has a solution for z:
z^n = 1
(z + i)^n = 1

Guest Nov 29, 2021

305

Coordinates

A triangle has vertices A(1, 1), B(2, 4), and C(4, 2). Line p is parallel to side AB and contains point C. Write an equation for line p.

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Guest Nov 29, 2021

+15

469

+483

Polynomials roots question

Find all values of for which the equations and have a common root.
Enter all the possible values of , separated by commas.

Any help would be appreciated

Help Pls

Consider the quadratic expression 13x^2 + nx - 17. For certain values of n, it may be factored into a product of two linear polynomials, both of which have integer coefficients. What are all such values of n?

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Guest Nov 29, 2021

Nov 28, 2021

299

Geometry question

A rectangular piece of paper ABCD is folded so that edge CD lies along edge AD making a crease DP. It is unfolded, and then folded again so that edge AB lies along edge AD making a second crease AQ. The two creases meet at R, forming triangles PQR read more ..

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Guest Nov 28, 2021

310

Polygons

In the regular octagon below, find x.

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Guest Nov 28, 2021

295

Coordinates

Find the center of the circle with equation 9x^2 - 18x + 9y^2 + 45y - 44 = 0.

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Guest Nov 28, 2021

-3

466

+218

Please answer this question in the link i gave

https://web2.0calc.com/questions/help-asap-question-on-basic-concepts

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MathyGoo13 Nov 28, 2021

239

Coordinates

Parallelogram ABCD has A(0,1), B(-2,-1), and C(4,0) as three of its vertices. What is the sum of the coordinates of point D?

Guest Nov 28, 2021

285

help!

Bob has a lawn of length 100 ft and width 80 ft. Every day, each square
ft grows 0.2 liters of grass. How many liters of grass are grown after one week?

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Guest Nov 28, 2021

-1

438

+218

Help Asap - Question on Basic Concepts!!

Tony drives 20 000 km in a car that has five tires, four of which are in use at any’ one time. Tony rotates the tires so that each tire is used the same number of kilometers. The number of kilometers that each tire is used is?

Thanks read more ..

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MathyGoo13 Nov 28, 2021

463

pls help asap! thanks!

$G$ is the centroid of $\triangle ABC.$ $G_1,G_2,$ and $G_3$ are the centroids of $\triangle BCG,\triangle CAG,$ and $\triangle ABG,$ respectively. What is $\dfrac{[G_1G_2G_3]}{[ABC]}?$ [asy] size(5cm); pair A,B,C,G,G1,G2,G3; A=(0,0); B=(1,3); C=(3,0);read more ..

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Guest Nov 28, 2021

240

help with coordinates

Trapezoid ABCD has vertices A(-1,0), B(0,4), C(m,6) and D(k,0), with m>0 and k>0. The line y = -x + 4 is perpendicular to the line containing side CD, and the area of trapezoid ABCD is 38 square units. What is the value of k?

Guest Nov 28, 2021

354

Inverse Functions

f(x) = k(x) if x > 3
f(x) = x^2 - 6x + 12 - x^2 +9

Find the function k(x) such that f is its own inverse. read more ..

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Guest Nov 28, 2021

225

Answer in the old link

https://web2.0calc.com/questions/please-help_81386

Guest Nov 28, 2021

355

Probability

The digits from 1 to 6 are arranged to form a six-digit multiple of 5. What is the probability that the number is greater than 500,000 and a multiple of 3? Express your answer as a common fraction.

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Guest Nov 28, 2021

241

Inequality

Solve the inequality $2x - 5 \le -x +12 + 3x + 7$. Give your answer as an interval.

Guest Nov 28, 2021

260

Please help. tysm if you did.

Big sam, an engineer of the oval express said: "We blew off a cylinder head an hour after leaving the station and had continued the trip 3/5 of the former speed, which brought us 2 hours late. If the accident occured fifty miles farther on, the train would read more ..

Guest Nov 28, 2021

375

+168

Interest

Annual interest rate of 10 per cent applied monthly (each month, balance goes up by 10/12 percent). By how much does your balance increase each year?

Steps appreciated, thanks.

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HoldMyBeer Nov 28, 2021

All Questions ⁺⁰237665 Questions

coordinates

Coordinates

Inequality

Interest

Algebra

Hard algebra

Coordinates

Polynomials roots question

Help Pls

Geometry question

Polygons

Coordinates

Please answer this question in the link i gave

Coordinates

help!

Help Asap - Question on Basic Concepts!!

pls help asap! thanks!

help with coordinates

Inverse Functions

Answer in the old link

Probability

Inequality

Please help. tysm if you did.

Interest

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