All Questions ⁺⁰238431 Questions

0

475

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Help algebra

Simplify and rationalize the denominator: 1/(1 + 1/(sqrt(3) + 2)).

Guest Jul 17, 2021

0

794

1

+24

Consider rhombus ABCD with side length 6:

Consider rhombus ABCD with side length 6:

This is rolled to form a cylinder of volume 27/2 by taping AD to BC: read more ..

Trainer Jul 17, 2021

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314

0

Domain

What is the domain of the real-valued function
q(x) = sqrt(x)/sqrt(-1 + x^2)?
Express your answer as an interval or as a union of intervals.

Guest Jul 17, 2021

0

465

1

help coordinates

Points A(0,0), B(6,0), C(6,10) and D(0,10) are vertices of rectangle ABCD, and E is on segment AB at (2,0) . What is the ratio of the area of triangle ADE to the area of quadrilateral ABCD? Express your answer as a common fraction. read more ..

Guest Jul 17, 2021

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468

1

3d geometry

A sphere is inscribed inside a hemisphere of radius 2. A cube is inscribed in the sphere. What is the volume of this cube?

Guest Jul 17, 2021

0

469

0

+24

Help

Could someone please help me with this problem?

hendy Jul 17, 2021

0

451

0

+68

Help please

Reproduce the angle difference identities for sine and cosine by expressing in rectangular form.

brinlin Jul 17, 2021

0

462

1

coordinates

The area of rectangle ABCD with vertices A(0, 0), B(0, 4), C(x, 4) and D(x, 0) is 32 square units. If x > 0, what is the value of x?

Guest Jul 17, 2021

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369

1

trapezoid

What is the area of the trapezoid shown? Express your answer in the simplest exact form.

read more ..

Guest Jul 17, 2021

0

381

1

help counting

The product of all digits of positive integer M is 105. How many such Ms are there with four digits?

Guest Jul 17, 2021

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469

1

Expand

Expand: 3p^5*q^3*(2pq + 5/(pq) + 1/p + 3/q)

Guest Jul 17, 2021

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340

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Graphing

If f(x) = (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.

Guest Jul 17, 2021

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356

0

Quadratic

The equation y = -16t^2 + 26t + 185 describes the height (in feet) of a ball tossed up in the air at 26 feet per second from a height of 185 feet above the ground. In how many seconds will the ball hit the ground? Express your answer as a decimal rounded read more ..

Guest Jul 17, 2021

0

505

2

+68

Having some trouble with this

Show that if w is a primitive root of unity for n = 2m, then is a primitive root of unity.

brinlin Jul 17, 2021

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330

0

Domain

What is the domain of the real-valued function f(x) = (2x - 7)/sqrt(x^2 - 5x + 1)?

Guest Jul 17, 2021

0

518

2

+68

Need some help with this

Let w be a sixth root of unity. Find all possible values of .

brinlin Jul 17, 2021

+1

614

1

+876

Bug with web2.0calc on mobile

As seen, it says there is a response but my phone shows no answer.

m.Imgur.com/jK98Rt
read more ..

MathProblemSolver101 Jul 17, 2021

Jul 16, 2021

0

536

2

+68

Help Please

Reproduce the angle difference identities for sine and cosine by expressing in rectangular form.

brinlin Jul 16, 2021

0

516

2

+68

Help Please

brinlin Jul 16, 2021

0

538

1

+21

trig & complex numbers

For what positive integers n is a real number?

echchew Jul 16, 2021

0

330

0

Polynomials

Find a monic quartic polynomial f(x) with rational coefficients whose roots include x=1-sqrt2 and x=2+sqrt5. Give your answer in expanded form.

Guest Jul 16, 2021

0

332

0

HELPPPPP

A bunny walks on the x-axis. At some point it makes a jump between two points on the axis according to the equation y = (-1/3)(x-1)(x-7). Plot in the coordinate plane the trajectory of the bunny's jump and find the height of the jump.
read more ..

Guest Jul 16, 2021

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473

2

equations

Rewrite the following quadratic functions in the vertex form

y = x^2 - 10x + 16
y = x^2 + 4x + 1 read more ..

Guest Jul 16, 2021

-1

485

1

help asap

Solve the following equations:

(√2)*x + 3 = 2x - 1 read more ..

Guest Jul 16, 2021

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