All Questions ⁺⁰232613 Questions

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334

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HELP FAST

In the diagram, square has sides of length and is equilateral. Line segments and intersect at Point is on so that is perpendicular to and Determine read more ..

Guest Jul 9, 2021

+1

428

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+103

fractions, ratios

Jonathan and Kenneth shared a sum of money in the ratio of 3 : 4. After Jonathan spent 1/6 of his money and Kenneth spent $15 of his money, both Jonathan and Kenneth had the same amount of money left. How much money did they have at first! read more ..

apsiganocj ●●

Robtlukas Jul 9, 2021

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316

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Need help

A school has 150 students. 110 students take Music and 40 students are left-handed. There are 32 students who take music and are left handed. What is the probability that a random student is right handed given they take Music?( person read more ..

Guest Jul 9, 2021

+1

392

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+103

fractions

Darius, Ellen and Farman each had some marbles. They traded marbles with one another. In the 1st round, Darius gave 1/5 of his marbles to Ellen. In the 2nd round, Ellen gave 1/4 of his marbles to Farhan. In the 3rd round, Farhan gave 1/2 of his marbles read more ..

Robtlukas Jul 9, 2021

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437

2

help with counting

There are 5 different peaches and three different apples. How many number of ways can they be divided into two packs of four fruits, if each pack must contain at least one apple?

Guest Jul 9, 2021

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362

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Answer this question please

The six faces of a cube are painted black. The cube is then cut into $5^3 = 125$ smaller cubes, all the same size. How many of the smaller cubes do not have any black faces?

Guest Jul 9, 2021

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337

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help plz

The length of three unequal edges of a rectangular solid block are in G.P. The volume of the block is 216 cm^{3} and the total surface area is 516 cm^{2} . The length of the longest edge is ?

Guest Jul 9, 2021

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207

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Euclidean Algorithm

Using the Euclidian Algorithm, calculate gcd(2^60 - 1, 2^8 - 1).

Guest Jul 9, 2021

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203

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Coordinates

A circle passes through the points (-2,0), (2,0), and (-3,8). Find the center of the circle. Enter your answer as an ordered pair.

Guest Jul 9, 2021

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330

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help plz

A rock is thrown upward from the height of 5 ft with an initial velocity of 50 ft per second. The height h(in feet) of the rock at time t seconds is h(t)=-16t^2+50t+5. When will the rock reach a height of 8 ft?

Guest Jul 9, 2021

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264

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plz help urgently

plz can you hlp plz

Guest Jul 9, 2021

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454

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State the 5th and 6th terms of triangular numbers. What square number will we get if we add these two numbers

State the 5th and 6th terms of triangular numbers. What square number will we get if we add these two numbers

Guest Jul 9, 2021

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204

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Algebra

The polynomial ax^2+bx+c is divisible by x-1 and has a remainder of 2 when divided by x+1 and has a remainder of 8 when divided by x-2. Find the value of a, b and c

Guest Jul 9, 2021

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185

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plz help

triangle ABC is a right triangle. Sides AB and BC form the fight angle. The equation of the line is representing side AB is 4x+8y=16. If C is located at point (1,-3) What is the equation of the line representing side BC?

Guest Jul 9, 2021

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197

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Floor Function

Compute $\lfloor \sqrt{1} \rfloor + \lfloor \sqrt{2} \rfloor + \lfloor \sqrt{3} \rfloor + \dots + \lfloor \sqrt{100} \rfloor$.

Guest Jul 9, 2021

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192

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how many pairs

How many pairs of positive integers (a,b) satisfy 1/a + 1/b = 1/(2*17)?

Guest Jul 9, 2021

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347

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domain

Compute the domain of the function f(x) = 1/floor(x^2 - x).

Guest Jul 9, 2021

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208

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Euclidean Algorithm

Use the Euclidean algorithm to find integers x and y such that 164x+39y=1. Note that while there are many pairs of integers x and y that satisfy this equation, there is only one pair that comes from using the Euclidean algorithm.

Guest Jul 9, 2021

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296

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help geometry

In the diagram, O is the center of a circle with radii OP=OQ=15. What is the perimeter of the shaded region?

Guest Jul 9, 2021

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385

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-3

DO ANY QUESTIONS ACTUALLY GET ANSWERED?

DO ANY QUESTIONS ACTUALLY GET ANSWERED?

Pdot4life Jul 9, 2021

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354

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prime sum

While adding the first few prime numbers (2, 3, 5, 7, ... ), I obtained a total value of 225, I then realized that I missed out on counting one number. Which one is missing?

Guest Jul 9, 2021

Jul 8, 2021

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340

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help plz

The sum of the digits of a two digit positive integer is 15 , when the digits are reversed the number is 27 more than the original number . what was the original number?

Guest Jul 8, 2021

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416

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In a group of 26 pupils, 3 play the flute only. 5 play the piano only. 7 play neither instrument. How many pupils play both instruments?

In a group of 26 pupils, 3 play the flute only. 5 play the piano only.
7 play neither instrument.
How many pupils play both instruments?

Guest Jul 8, 2021

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