All Questions

533

Find 2/(1 + 2*sqrt(3)) + 5/(2 - sqrt(3))

Find 2/(1 + 2*sqrt(3)) + 5/(2 - sqrt(3)), and write your answer in the form (A + B*sqrt(3))/C, with the fraction in lowest terms and A > 0. What is A + B + C?

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Guest Oct 8, 2020

823

Work

1.The engine of a jet airplane put a force of 6.2 kN to the plane.
The plane travels 95 km. How much work do the engines do on the plane?
(Hint: 1 kN= 1000 N)

2. You help a friend's family move a sofa across a room. Together you read more ..

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Guest Oct 8, 2020

600

parabola

The graph of the equation y = ax^2 + bx + c, where a, b, and c are constants, is a parabola with axis of symmetry x = 7. Find b/a.

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Guest Oct 8, 2020

327

help please

Simplify (a^2 + 1)/(a^2 - 1) - (a - 1)/(a + 1).

Guest Oct 8, 2020

527

algebra

There are 5 quadratics below. Four of them have two distinct roots each. The other has only one distinct root; find the value of that root.

2x^2 - 4x + 8
2x^2 - 12x + 24 read more ..

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Guest Oct 8, 2020

668

Help with Geometry

Suppose that we have a right triangle ABC with the right angle at B such that AC=√(61) and AB=5. A circle is drawn with its center on AB such that the circle is tangent to AC and BC. If P is the point where the circle and side AC meet, read more ..

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Guest Oct 8, 2020

594

Asap!

1. Compute in base 3.

read more ..

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Guest Oct 8, 2020

594

Monthly Payment Formula = p(r/12)( 1 + r/12 ) ( 12 * t) / (( 1 + r/12 )^( 12 * t) - 1 )

You are purchasing your first home. The cost of the home is $325,000 and you will be putting 20% of the price as your down payment. The loan will be for 30 years at an APR of 4.2%.
Monthly Payment Formula = p*(r/12)*( 1 + r/12 ) ( 12 * t) read more ..

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Guest Oct 8, 2020

376

complex numbers

Compute i + i^2 + i^3 + i^4 + ... + i^(2020).

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Guest Oct 8, 2020

548

+24

quick precal question

According to Descartes's rule of sign, how many possible positive and negative roots are there for the equation 0=−4x^6−3x^5+2x^2−4x+1?
0, 1, 2, 0 or 2, 3, 1 or 3

savcarroll Oct 8, 2020

342

plz help

How many of the 343 smallest positive integers written in base 7 use 4 or 0 (or both) as a digit?

Guest Oct 8, 2020

484

Prove that is divisible by for all nonnegative integers .

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Guest Oct 8, 2020

511

algebra

Simplify sqrt(147) - sqrt(75) + sqrt(12).

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Guest Oct 8, 2020

793

+45

Please help me. I have done part a, b, and c, but I need help for part d

In triangle ABC, AB = AC and angle A is equal to 36˚ Point D is on AC so that BD bisects
(a) Prove that BC = BD = AD.
(b) Let x = BC and let y = CD. Using similar triangles BCD and ABC, write an equation involving x and read more ..

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aDumbDude Oct 8, 2020

454

+24

sos

Consider the matrix.
C= [−6 −5
3 4]
What is | C | = read more ..

savcarroll Oct 8, 2020

351

math problem

Amaretta's birthday is July 27, and her brother Enzo's birthday is September 3. Every year, Amaretta and Enzo celebrate by eating cake every day from Amaretta's birthday through Enzo's birthday (including both birthdays). If they did this for the first read more ..

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Guest Oct 8, 2020

580

Math quiz today

Identify every number that falls between 1.7 and 195%

18.5 7/4 180 15/8 read more ..

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Guest Oct 8, 2020

1078

geometry

Isosceles triangle ABC contains angle bisectors segment BF, segment AD, and segment CE that intersect at X.triangle ABC with diagonals BF, AD, and EC that intersect at point X If segment BA is congruent to segment BC and m∠BCA = 44°, what is m∠CXA? read more ..

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Guest Oct 8, 2020

568

+980

I need help, this is due tomorrow soon and I can't figure it out

In right triangle ABC we have AB = 10, BC = 24, and angle ABC = 90 If M is on line AC such that Line BM is an angle bisector of triangle ABC, then what is cos angle ABM?

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qwertyzz Oct 8, 2020

529

help please

There are 42 people in pilates class. Today, 35 of them brought yoga mats, 21 of them brought eco-friendly water bottles, and 11 of them remembered to bring both yoga mats and water bottles. How many people had to suffer through class having neither a yoga read more ..

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Guest Oct 8, 2020

534

i need some help

what are all the factors of 25???

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Guest Oct 8, 2020

412

help please

I need to find a and b

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Guest Oct 8, 2020

396

Help!

Compute . Give your answer as a base 12 integer.

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Guest Oct 8, 2020

601

geometry

A circle has a radius of 45 centimeters. What is the arc length intercepted by a central angle that measures 2π/9 radians? Express the answer in terms of π .

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Guest Oct 8, 2020

All Questions ⁺⁰237665 Questions

Find 2/(1 + 2*sqrt(3)) + 5/(2 - sqrt(3))

Work

parabola

help please

algebra

Help with Geometry

Asap!

Monthly Payment Formula = p(r/12)( 1 + r/12 ) ( 12 * t) / (( 1 + r/12 )^( 12 * t) - 1 )

complex numbers

quick precal question

plz help

Prove that is divisible by for all nonnegative integers .

algebra

Please help me. I have done part a, b, and c, but I need help for part d

sos

math problem

Math quiz today

geometry

I need help, this is due tomorrow soon and I can't figure it out

help please

i need some help

help please

Help!

geometry

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