All Questions ⁺⁰238236 Questions

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247

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+660

Please Help Users!

The sum of the product and the sum of two positive integers is 39. Find the largest possible value of the product of their sum and their product.

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Keihaku Jan 4, 2023

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215

1

upper lower bounds

what is the upper and lower bound of 8.31 to 2 decimal places. what is the upper lower bounds or 8.31

Guest Jan 4, 2023

0

193

0

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 Jan 4, 2023

0

245

0

+660

Please Help! Asked this one yesterday and couldn't get the right answer!

https://web2.0calc.com/questions/urgent-help-is-needed-cphill-or-someone-pls-help#r10

Keihaku Jan 4, 2023

0

188

0

Triangle

Let ABC be a triangle, and let its angle bisectors be AD, BE, and CF, which intersect at I. If DI = 3, BD = 4, and BI = 8, then find the area of triangle ABC.

Guest Jan 4, 2023

+1

269

1

+9

Rewrite

bigmath Jan 4, 2023

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190

0

Graphing

The graph of y = f(x) is shown below.

For each point (a,b) that is on the graph of y = f(x), the point ((a - 7)/2, (3b + 1)/4) is plotted, forming the graph of another function y = g(x). As an example, the point read more ..

Guest Jan 4, 2023

0

226

1

Counting

How many solutions are there to the equation
u + v + w + x + y + z = 18
where u, v, w, x, y, and z are nonnegative integers, and x is at most 10?

Guest Jan 4, 2023

0

250

1

exponents

The expression $\dfrac{\sqrt{7}}{\sqrt[3]{4}}$ equals 7 raised to what power?

Guest Jan 4, 2023

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202

0

triangle

Let ABC be a triangle, and let its angle bisectors be AD, BE, and CF, which intersect at I. If DI = 3, BD = 4, and BI = 8, then find the area of triangle ABC.

Guest Jan 4, 2023

0

181

0

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 Jan 4, 2023

0

194

0

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 Jan 4, 2023

0

238

1

help with combo

There is a group of five children, where two of the children are twins. In how many ways can I distribute 17 identical pieces of candy to the children, if the twins must get an equal amount of candy?

Guest Jan 4, 2023

0

198

0

help counting

Let n be a positive integer. Let k be a positive integer.

(a) Using a counting argument, show that C(n - 1, k - 1) + C(n - 1, k) = C(n,k).
read more ..

Guest Jan 4, 2023

-1

277

1

triangle

Let ABC be a triangle, and let its angle bisectors be AD, BE, and CF, which intersect at I. If DI = 3, BD = 4, and BI = 8, then find the area of triangle ABC.

Guest Jan 4, 2023

0

212

1

triangle

In triangle PQR, let M be the midpoint of QR, let N be the midpoint of PR, and let O be the intersection of QN and RM, as shown. If QN perp PR, QN = 12, and PR = 14, then find the area of triangle PQR.

Guest Jan 4, 2023

0

235

2

Primes

How many prime numbers less than 100 have a units digit of 7?

Guest Jan 4, 2023

+1

207

0

counting

In the array below, in how many different ways can we start with the letter A and move from letter to letter (horizontally, vertically, or diagonally), to spell the word "ARCH"?

A
RR read more ..

Guest Jan 4, 2023

0

298

1

Find the sum of all solutions to the equation 4x(x-3) = 23

Find the sum of all solutions to the equation 4x(x-3) = 23

Help is greatly appreciated

Guest Jan 4, 2023

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