All Questions ⁺⁰237691 Questions

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312

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Geometric sequences

The positive integers A, B, and C form an arithmetic sequence while the integers B, C, and D form a geometric sequence. If C/B = , what is the smallest possible value of A + B + C + D?

Guest May 10, 2022

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230

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Math

An empty rectangular tank measured 70 cm by 25 cm by 36 cm. A stone volume 4500 cm! is placed in the tank. Then the tank is filled with water flowing from a tap in a rate of 9 liters per minute. How long will it take to fill the tank?

Guest May 10, 2022

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284

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Logarithmic with sequences

A geometric sequence begins....

8,16,32,64...
read more ..

Guest May 10, 2022

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447

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How many terms are in the geometric sequence?

How many terms are in the geometric sequence?
\[3, 3 \sqrt 2, 6, \dots, 96, 96 \sqrt 2, 192\]

Guest May 10, 2022

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418

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Sequences

Suppose w,x,y,z are positive real numbers such that w,x,y,z form an increasing arithmetic sequence, and w,x,z form a geometric sequence.
What is the value of w/z ? The answer must be in fraction, dont divide it.

read more ..

Guest May 10, 2022

May 9, 2022

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232

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equation

Solve x - 6 = sqrt(3x).

Guest May 9, 2022

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352

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+32

question on a math competition, i know the answer, i don't know how to get to it

A stack contains 7 green marbles and 3 red marbles. 2 marbles are taken from the sack w/out replacement. What is the probability of taking one green marble and one red marble (in any order)?

catswift May 9, 2022

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213

1

2.9955333 x 10^12

2.9955333 x 10^12

Guest May 9, 2022

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220

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Quadratic

The solutions of x(2x-7)=3+5x may be expressed in the form (m + sqrt(n))/p and (m - sqrt(n))/p, where m, n, and p are relatively prime numbers. Find m+n+p.

Guest May 9, 2022

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220

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Coordinates

A segment with endpoints at A(2, -2) and B(14, 4) is extended through B to point C. If BC = 3*AB, what are the coordinates for point C? Express your answer as an ordered pair.

Guest May 9, 2022

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216

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3d geometry

A sector of 144 degrees is removed from a circle of radius 15, and the remaining portion is folded into a cone. What is the angle at the vertex of the cone?

Guest May 9, 2022

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282

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Math

Emily has a drawer full of colorful ribbons. The probability of randomly selecting a green ribbon is 82%.
Which of the following describes the likelihood of selecting a green ribbon?

Guest May 9, 2022

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235

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Logarithms

What is the largest integer less than log_2(2/1) + log_2(3/2) + log_2(4/2) + ... + log_2(64/63)?

Guest May 9, 2022

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232

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Divisors

If we let f(n) denote the sum of all the positive divisors of the integer n, how many intergers i exist such that and 1 <= i <= 2010 and f(i) = i + 1?

Guest May 9, 2022

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247

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Domain

The domain of the function h(x) = sqrt{25-x^2} is an interval of what width?

Guest May 9, 2022

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401

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How many of the $401$ integers from $-200$ to $200$ are congruent to $5 \pmod{13}?$\\

How many of the $401$ integers from $-200$ to $200$ are congruent to $5 \pmod{13}?$\\
helppp

Guest May 9, 2022

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214

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Domain

Find the domain of the function (x^4 - 4x^3 + 6x^2 - 4x + 1)/(x^2 + 4)

Guest May 9, 2022

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228

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Math quiz

I need help with this question pls answer it

Guest May 9, 2022

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215

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Polynomial

Find all roots given that x = 3 + i is a solution.
x^4 - 10x^3 + 29x^2 - 10x - 50 = 0

Guest May 9, 2022

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291

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could someone please help me work out this problem?

how would i solve: (4-4i)(i^24+6i)/(i^245)

i already know to foil it at some point read more ..

Guest May 9, 2022

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275

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Binomial Theorem

Find the coefficient of u^2 in expansion of (2u - 1)^5 using binomial theorem.

Guest May 9, 2022

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287

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Help please

Find the number of 10-digit numbers, where the sum of the digits is divisible by 10

not 2000000

Guest May 9, 2022

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274

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+8

What quadrant does the terminal ray of the angle drawn in standard position lie in?

What quadrant does the terminal ray of the angle drawn in standard position lie in?
Drag the angle measure to each box to match the quadrant location of the terminal ray of the angle. read more ..

Card2190120213 May 9, 2022

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281

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+8

What is the sign of the trigonometric function, given the quadrant the terminal ray of an angle lies in? Select all correct statements.

What is the sign of the trigonometric function, given the quadrant the terminal ray of an angle lies in?
Select all correct statements.
read more ..

Card2190120213 May 9, 2022

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342

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Probability

Each of the digits 0-9 is written on a slip of paper, and the slips are placed in a hat. If 5 slips of paper are selected at random, determine the probability that the 5 numbers selected are greater than 3.

Guest May 9, 2022

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