All Questions ⁺⁰237687 Questions

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142

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Algebra

How do I do this
Find the constant term in the expansion of (2z - 1/(z*sqrt(z)) + 1)^4.

Guest Mar 28, 2023

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170

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Venn diagram

Dr. Hawk works in an allergy clinic, and his patients have the following allergies: G8 are allergic to dairy products, 92 are allergic to pollen, 88 are allergic to animal dander, 31 are allergic to all three,
27 are allergic only to pollen, 12 are read more ..

Guest Mar 28, 2023

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162

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Venmo diagram

In a recent survey of monetary donations made by college graduates, the following information was obtained: 91 graduates had donated to a political campaign, 76 had donated to assist medical
research, 139 had donated to help preserve the environment, read more ..

Guest Mar 28, 2023

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161

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+4

Geometry

Please help with this question.
In trapezoid ABCD, base ∠A = 54°, base ∠B = 36°, and AB exceeds CD by 6. Compute the length of the line segment that joins the midpoints of the bases.

Pocky Mar 28, 2023

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144

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Guest Mar 28, 2023

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149

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Solid geometry

Help I need help plz
In tetrahedron ABCO, angle AOB = angle AOC = angle BOC = 90^\circ. A cube is inscribed in the tetrahedron so that one of its vertices is at O, and the opposite vertex lies on face ABC. Let OA = 1, read more ..

Guest Mar 28, 2023

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149

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geometry

Triangle ABC has altitudes AD, BE, and CF. If AD = 12, BE = 18, and CF is a positive integer, then find the largest possible value of CF.

Guest Mar 28, 2023

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171

1

Help please

Simplify $\frac{x^2+2x^4+3x^6+\dots+1005x^{2010}}{2x+4x^3+6x^5+\dots+2010x^{2009}}$

Guest Mar 28, 2023

Mar 27, 2023

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161

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counting

Find the number of positive integers that satisfy both the following conditions:
Each digit is a 1 or a 2
The sum of the digits is 4

Guest Mar 27, 2023

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168

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counting

Help how do I count this
Find the number of six-digit numbers, where the sum of the digits is divisible by 8.

Guest Mar 27, 2023

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149

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Geometry

Points X, Y, and Z are on the sides QR , PR, and PQ respectively, of right triangle PQR such that PZXY is a square. If PQ=10 and PR=10, then what is the side length of the square?

Guest Mar 27, 2023

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155

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hard algebra question

Suppose r and s are the solutions of x^2 − 12x + 22 = 0. Find r 2 + s 2

Guest Mar 27, 2023

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171

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counting

Plz anyone help with counting
(a) Find the number of ways that Magnus can give out 20 identical stickers to 5 of his friends. (Not everyone has to get a sticker.)
(b) Find the number of ways that Magnus read more ..

Guest Mar 27, 2023

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156

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counting

Help I need to count this
Catherine rolls a standard 6-sided die five times, and the product of her rolls is . How many different sequences of rolls could there have been? (The order of the rolls matters.)

Guest Mar 27, 2023

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155

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counting

Plz help with this I need it
A standard six-sided die is rolled 7 times. You are told that among the rolls, there was one 1, two 2's, and three 4's. How many possible sequences of rolls could there have been? (For read more ..

Guest Mar 27, 2023

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143

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Algebra

Plz help with this
Select all the correct statements. (For this problem, we assume that an exponential function is of the form ka^x where a > 0)
(A) The following function is exponential: y = 2^x
(B) read more ..

Guest Mar 27, 2023

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144

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counting

Joanna has six beads that she wants to assemble into a bracelet. Two of the beads have the same color, and the other four all have the same color. How many different ways can Joanna assemble her bracelet? (Two bracelets are considered identical if one can read more ..

Guest Mar 27, 2023

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