All Questions ⁺⁰237689 Questions

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My brother needs help...

The exam grades of a pre-algebra class were arranged in a stem and leaf plot as illustrated. What is the arithmetic mean of the median and the mode of the given data?
4| 1
5| 2
6| 7 8 8
7| 1 1 2 3 3 3 5 6 8 <#> 8| 0 4 4 6 6 6 6 8 <#> 9| 1 3 5 read more ..

SmartWater Dec 29, 2021

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455

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+183

My bain can't understand..

What is the sum of A and B if

SmartWater Dec 29, 2021

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395

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Coordinates

Let a and b be real numbers, where a < b, and let A = (a,a^2) and B = (b,b^2). The line AB (meaning the unqiue line that contains the point A and the point B) has x-intercept (-3/2,0) and y-intercept (0,1). Find a and b. Express your answer read more ..

Guest Dec 29, 2021

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258

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Function

Consider the function
f(x)= ax^2 + a if x > a
f(x)= ax + 4a if x <= a
where a is some number.
What is the largest value of a such that the graph of y= f(x) intersects every horizontal line at least once? read more ..

Guest Dec 29, 2021

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437

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Math

The average number of Peter's stickers and Jordan's stickers is 924. Peter has 232 more stickers than Jordan. Albert has 172 stickers more than Peter. What fraction of Albert's stickers are Jordan's stickers? Write your answer in its simpliest form read more ..

Guest Dec 29, 2021

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299

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Help

Kelvin had some money. If he buys 3 books, he will have $12 left. If he buys 5
books, he will be short of $4. Find the cost of a book.

Guest Dec 29, 2021

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255

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Domain

The domain of the function f(x) = x^2/1 - x/1 is (-infty,1) U (1,infty). What is the range?

Guest Dec 29, 2021

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387

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Help

Kate spent $64 on some stationery. 4/11 of the items that she bought
were erasers and the rest were pens. Each eraser cost $1.20 and
each pen cost $1.60. How many erasers and pens did Kate buy
altogether? read more ..

Guest Dec 29, 2021

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249

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Probability

Two numbers between 0 and 1 on a number line are chosen at random. What is the probability that the second number chosen will: exceed twice the first number chosen? Express your answer as a common fraction.

Guest Dec 29, 2021

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392

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Probability

There are three independent events with probabilities of 1/3, 2/7, and 1/5. Find the probability that: Exactly one event will happen.

Guest Dec 29, 2021

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409

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Probability

A point P is chosen at random within right triangle ABC. Find the probability that the area of triangle PBC is less than half of the area of triangle ABC.

Guest Dec 29, 2021

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397

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asap

what is 1/3 as a decimal then rounded to the nearest thousandth

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Guest Dec 29, 2021

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394

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Sequences

Find the sum of the first six terms in the geometric sequence 1/2, 1/8, 1/16, .... Express your answer as a common fraction.

Guest Dec 29, 2021

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372

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Algebra

Find all the solutions to (x + 4)/(x + 5) = (x - 5)/(2x - 5)

Guest Dec 29, 2021

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351

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Number Theory

How many positive multiples of 3 less than 1000 use only the digits 2 and/or 4 and/or 6?

Guest Dec 29, 2021

Dec 28, 2021

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418

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Algebra

Tina lives 30 miles away from her work, and she normally drives at 45 miles per hour. If she wants to get to work 15 minutes earlier, how fast should she drive to work, in miles per hour?

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Guest Dec 28, 2021

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320

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Algebra

All of the members of our spray-painting team paint at the same speed. If 5 team members can paint a certain wall in 27 minutes, then how many minutes would it take 18 of our team members to paint the same wall?

Guest Dec 28, 2021

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361

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need help

A digital, 12-hour clock shows hours and minutes. During what fraction of the day will the clock show the digit 0 in its display? Express your answer as a common fraction.

Guest Dec 28, 2021

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380

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Counting problem

How many of the natural numbers from 1 to 600, inclusive, contain the digit 5 at least once or the digit 6 at least once?

Guest Dec 28, 2021

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2952

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How to make digits 1-100 with 2, 0, 2, 2

This is also known as the 2022 problem.
The instructions for this assignment are:

Use the digits in the year 2022 and the operations +, -, x, ÷, √ (square root), ^ (raise to a power), “!” (factorial), combinations read more ..

Guest Dec 28, 2021

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372

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Geometry

ABC and DEF are right triangles, and AF and DC are their respective altitudes. Point G is the intersection of AC and DF and GH is drawn from it such that it is perpendicular to BC. If AF = 6 and GH = 4 and FC = 8, what is the area of polygon read more ..

Guest Dec 28, 2021

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271

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Polynomial

Let P(x) be a cubic polynomial such that P(0) = -3 and P(1) = 4. When P(x) is divided by x^2 + x + 1, the remainder is 2x + 3. What is the quotient when P(x) is divided by x^2 + x + 1?

Guest Dec 28, 2021

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302

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Algebra

What is the following value when expressed as a common fraction:
1/2 + 1/2^2 + 1/2^3 + ... + 1/2^8 + 1/2^9 + 1/2^10 + 1/2^11 + 1/2^12

Guest Dec 28, 2021

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371

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Sequence

Find the fifth term of the geometric sequence with first term 2 and second term 4.

Guest Dec 28, 2021

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