All Questions ⁺⁰237738 Questions

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179

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Inequalities

(a) Prove that if a, b, c, d, e, f are nonnegative real numbers, then (a^2 + b^2)^2 (c^4 + d^4)(e^4 + f^4) >= 32abcdef.
(b) Prove that if a, b, c, d, e, f are nonnegative real numbers, then (a^2 + b^2)(c^2 + d^2)(e^2 + read more ..

Guest Dec 16, 2022

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197

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factoring

We are looking to factor 23x^2 + kx - 5 + x^2 - 3. Some values of k allow us to factor it as a product of linear binomials with integer coefficients. what are all such values of k?

Guest Dec 16, 2022

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205

1

8^1/6 x 2^x = 32^1/2 work out the value of x

8^1/6 x 2^x = 32^1/2 work out the value of x

Guest Dec 16, 2022

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212

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the graph of quadratic function f has zeros of -8 and 4 a maximum at (-2,18). What is the value of a in the function's equation?

the graph of quadratic function f has zeros of -8 and 4 a maximum at (-2,18). What is the value of a in the function's equation?

Guest Dec 16, 2022

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178

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geometry

In the diagram below, D is a point on segment CE such that segments AD and BE are parellel and point A is not on segment BC. Line segments AD and BC intersect at point P.

If angle CAD = 67 degrees, then what is angle read more ..

Guest Dec 16, 2022

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185

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Solve

Solve for y if 9^y = 3*6*27*4*81*10*2

Guest Dec 16, 2022

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184

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importent

f'(x)= cos x
so what is f(3) if f(2π/5)=1.95

Guest Dec 16, 2022

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180

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binomials

Fill in the blanks to make the equation true (Each blank should contain a positive integer.)

\binom{n}{k} = \binom{n - 2}{k} + \binom{n - 2}{k - 1} + \binom{n - 1}{k} + \binom{n - 1}{k - 1} + \binom{n}{k - 1} + \binom{n}{k + read more ..

Guest Dec 16, 2022

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169

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Complex numbers

Find all the solutions to z^4 = -4 - 5z^2 in complex numbers.
Express all the solutions in the form a + bi, where a and b are real numbers.

Guest Dec 16, 2022

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188

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HELP pretty plz

https://web2.0calc.com/questions/precalc_104
thanks!

Guest Dec 16, 2022

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190

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HELP PLEASE ASAP

Use the diagram to answer the question below. The figure is not drawn to scale.
The drawing to the right represents a race track. read more ..

Guest Dec 16, 2022

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191

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binomials

Simplify binom{100}{50}/binom{200}{51}*binom{100}{51}/binom{200}{50}

Guest Dec 16, 2022

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194

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help with probability

In the SuperLottery, three balls are drawn (at random, without replacement) from white balls numbered from 1 to 12, and one SuperBall is drawn (at random) from red balls numbered from 13 to 20. When you buy a ticket, you choose three numbers from 1 to 12, read more ..

Guest Dec 16, 2022

Dec 15, 2022

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202

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need help

A group of friends wants to go to the amusement park. They have no more than $325 to spend on parking and admission. Parking is $16.50, and tickets cost $38.50 per person, including tax. What is the maximum number of people who can go to the amusement park? read more ..

Guest Dec 15, 2022

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187

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(8+1/3)/x=(2+1/3)/9.1

(8+1/3)/x=(2+1/3)/9.1

Guest Dec 15, 2022

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210

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Help with geometry

Two interior angles of a triangle measure 15° and 30°. The perimeter of the triangle is sqrt 10 + sqrt 20 + sqrt 30. What is the area of the triangle?

Guest Dec 15, 2022

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208

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Help with combinations

Our basketball team has 10 players, including Steve and Danny. We need to divide into two teams of 5 for an intra-squad scrimmage. In how many ways can we do this if Steve and Danny insist on playing on the same team?

I tried 8 choose read more ..

Guest Dec 15, 2022

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212

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Precalc

Calculate

Please Answer in radians in terms of .

Guest Dec 15, 2022

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196

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triangle

In triangle PQR, M is the midpoint of PQ. Let X be the point on QR such that PX bisects angle QPR, and let the perpendicular bisector of PQ intersect AX at Y. If PQ = 36, PR = 22, QR = 26, and MY = 8, then find the area read more ..

Guest Dec 15, 2022

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244

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+660

Help Again! Due soon

https://web2.0calc.com/questions/help-with-this-problem_7

ANSWER HERE

Keihaku Dec 15, 2022

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194

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Probability

A bag contains five white balls and three black balls. Your goal is to draw two white balls.

(a) You simultaneously draw two balls at random. What is the probability that they are both white?
(b) You simultaneously draw two balls read more ..

Guest Dec 15, 2022

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249

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help counting

There is a gorup of five children, where two of the children are twins. In how many ways can I distribute 7 identical pieces of candy to the children, if the twins must get an equa amount of candy?

Guest Dec 15, 2022

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