All Questions

519

pleese answer: 3x-x^2+x^2-6x=-18

pleese answer: 3x-x^2+x^2-6x=-18

thank you!!!

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Guest Dec 20, 2020

468

pls help

In the figure below, is a parallelogram, and . Segments and are perpendicular to sides of the parallelogram as shown, and . What is the area of the parallelogram?
[asy] size(7cm); pair read more ..

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jojomoon Dec 20, 2020

761

Please help

What is the greatest possible value of $a$ in the system of equations $5a + 2b = 0$ and $ab = -10$ ?
So ive currently done this:
ab=-10
a=-10/b read more ..

CPhill ●●●

Guest Dec 20, 2020

503

help pls!!

find all solutions to the equation 10x^2 - 7x - 6 = 0.

thank you!!

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Guest Dec 20, 2020

547

Hi this is math question :)(

A positive real number $x$ is such that \[ \sqrt[3]{1-x^3} + \sqrt[3]{1+x^3} = 1. \]Find $x^6.$

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Guest Dec 20, 2020

1521

+118723

Happy Birthday CPhill.

I am probably a tad late but I hope your birthday has been an excellent one!

off-topic

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Melody Dec 20, 2020

523

MATH HELPPP ME PLSSS

The angle of elevation from the top of a 16 m
building to the top of a second building is 48 .
The buildings are 30 m apart. What is the
height of the taller building?

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Guest Dec 20, 2020

433

positive integers

For (x,y) positive integers, let 10xy + 14x + 15y = 183. Find x + y.

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Guest Dec 20, 2020

Dec 19, 2020

497

geometry problem

In the figure, what is the area of triangle ABD? Express your answer as a common fraction.

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Guest Dec 19, 2020

519

help

1.How many complex numbers z are there in the first quadrant such that |z| and z^3 is real?

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Guest Dec 19, 2020

388

expression defined

For what real values of a is the expression (a+3)/(a^2-4a + 1) undefined? List your answers in increasing order separated by commas.

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Guest Dec 19, 2020

987

How many non-congruent squares can be drawn, such that their vertices are lattice points on the 5 by 5 grid of lattice points shown?

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Guest Dec 19, 2020

835

+197

Find all complex numbers $z$ such that $z^4 = -4.$ please give me a solution with normal alegebra

Hi, I'm having some problems trying to understand the problem where I have to find all the complex numbers z such thet z^4= -4, I need an Idea of how to solve this, please give me solution using normal alegebra.

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icecreamlover Dec 19, 2020

1179

Which is steeper, 1/3 or 1/t

Which is steeper, 1/3 or 1/5

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Guest Dec 19, 2020

436

geometry question

The field shown has been planted uniformly with wheat. At harvest, the wheat at any point in the field is brought to the nearest point on the field’s perimeter. What is the fraction of the crop that is brought to the longest side?

Each read more ..

Guest Dec 19, 2020

628

Complex numbers and polar coordinates

The complex numbers z and w are graphed below. The quotient can be written in the form where and . Find .

(I couldn't figure out how to upload read more ..

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Guest Dec 19, 2020

517

geometry

Suppose that ABCD is a trapezoid in which AD is parallel to BC. Given AC is perpendicular to CD, AC bisects ∠BAD, and the area of ABCD is 20 , then compute the area of triangle ACD.

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Guest Dec 19, 2020

825

If $f(x)=\frac{x+4}{x^2+ax+b}$, and f(x) has two vertical asymptotes at x=1 and x=-2, find the sum of a and b.

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Guest Dec 19, 2020

430

geometry

Medians are drawn from point A and point B in this right triangle to divide segments BC and in AC half, respectively. The lengths of the medians are 6 and 2 sqrt(19) units, respectively. How many units are in the length of segment AB?
read more ..

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Guest Dec 19, 2020

417

ASAP HELP

In trapezoid , sides AB and CD are parallel,

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Guest Dec 19, 2020

588

Pls HELP!

What Do I Have To Do?
© 2012 iStockphoto /Thinkstock
In this lesson, you learned about the city-states of Athens and Sparta. Suppose that you are an Athenian visiting Sparta, or a Spartan who has received permission to visit Athens. read more ..

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Guest Dec 19, 2020

727

7.4 MATH PROBABILITY

A combination lock has 4 dials, each with the digits 2, 3, 4, and 5.
What is the probability that someone could guess the correct combination on the first try by randomly selecting a number from 2 to 5 four times?

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Guest Dec 19, 2020

871

+367

Please help Thank you

Six positive integers are written on the faces of a cube. Each vertex is labeled with the product of the three numbers on the faces adjacent to the vertex. If the sum of the numbers on the vertices is equal to 1001, then what is the sum of the numbers read more ..

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imdumb Dec 19, 2020

357

quadratic

Find the largest value of c such that 1 is in the range of f(x)=x^2-8x+c.

Guest Dec 19, 2020

710

+92

Pls help thx

Circle $A$ and Circle $B$ intersect at two points $P$ and $Q.$ A common tangent line of the two circles touches circle $A$ and circle $B$ at points $X$ and $Y$ respectively. $XY$ and read more ..

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AaronWang2004 Dec 19, 2020

All Questions ⁺⁰237641 Questions

pleese answer: 3x-x^2+x^2-6x=-18

pls help

Please help

help pls!!

Hi this is math question :)(

Happy Birthday CPhill.

MATH HELPPP ME PLSSS

positive integers

geometry problem

help

expression defined

How many non-congruent squares can be drawn, such that their vertices are lattice points on the 5 by 5 grid of lattice points shown?

Find all complex numbers $z$ such that $z^4 = -4.$ please give me a solution with normal alegebra

Which is steeper, 1/3 or 1/t

geometry question

Complex numbers and polar coordinates

geometry

If $f(x)=\frac{x+4}{x^2+ax+b}$, and f(x) has two vertical asymptotes at x=1 and x=-2, find the sum of a and b.

geometry

ASAP HELP

Pls HELP!

7.4 MATH PROBABILITY

Please help Thank you

quadratic

Pls help thx

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