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260

The parabola with equation y=ax^2+bx+c is graphed below:

The parabola with equation y=ax^2+bx+c is graphed below:
The zeros of the quadratic ax^2 + bx + c are at x=m and x=n, where m>n. What is m-n?

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Guest Jul 27, 2022

317

Graphing question

On the graph of y = (x + 2)^2 - 10, how many points are there whose coordinates are both negative integers?

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Guest Jul 27, 2022

215

Algebra problem

Each gallon of paint covers 200 square feet. I have to paint one side of a wall that is 85 meters tall and 150 meters long. If a foot is approximately 0.3048 meters, then what is the smallest whole number of gallons I can buy and have enough paint read more ..

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Guest Jul 27, 2022

309

Counting and Probability

Bob and Meena play a two-person game which is won by the first person to accumulate 10 points. At each turn Bob gains a point with probability of 1/3. If he doesn't get a point, then Meena gets a point. Meena is now ahead 9 to 8. What is the probability read more ..

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Guest Jul 27, 2022

419

+12

Counting and Probability

Four letters are selected at random with replacement from the word MATHCOUNTS. What is the probability that the letters in the order they are selected will form the word MATH?

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AngrySesame Jul 27, 2022

309

Complex numbers

Simplify (1 - i)/(2 + 3i - 4 + 5i), where i^2 = -1.

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Guest Jul 27, 2022

305

Probability

Alice rolls a fair six sided die, and Bob rolls a fair twenty sided die. What is the probability that the product of the numbers they roll is a multiple of 5?

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Guest Jul 27, 2022

312

Complementary Probability

What is the probability that when we roll four fair 6-sided dice, they won't all show the same number?

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Guest Jul 27, 2022

294

quadratic

Each solution to x^2 + 5x + 8 = -14 can be written in the form a + bi where a and b are real numbers. What is a^2 + b^2?

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Guest Jul 27, 2022

311

Casework Probability Problem

If three, standard, 6-faced dice are rolled, what is the probability that the sum of the face up integers is 16?

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Guest Jul 27, 2022

267

Ratio

in a school, the ratio of the number of boys to the number of girls is 2:3 and the ratio of the number of girls to the number of teachers is 7:3. what is the ratio of the number of students to the number of teachers?

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Guest Jul 27, 2022

305

geometric probability

Let ABC be an equilateral triangle. A point P is chosen at random inside triangle ABC. Find the probability that P is closer to vertex A than to vertex B.

BuilderBoi ●

Guest Jul 27, 2022

295

Quadratic

Find the largest value of c such that -2 is in the range of f(x) = x^2 + 8x + c.

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Guest Jul 27, 2022

304

Arithmetic series

What is 75 + 72 + 69 + 66 + ... + 21 + 18 + 15 + 12 + 9 + 6 + 3?

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Guest Jul 27, 2022

298

+78

please help!

Jeri finds a pile of money with at least $200. If she puts $80 of the pile in her left pocket, gives away 1/3 of the rest of the pile, and then puts the rest in her right pocket, she'll have more money than if she instead gave away $200 of the original read more ..

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ILikeSushi Jul 27, 2022

299

triangle geometry

The radius of the inscribed circle is 6 cm. What is the number of centimeters in the length of AB? Express your answer in simplest radical form.

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Guest Jul 27, 2022

336

+78

please help!

My street hockey team plays three games each week. My team lost all 12 games in the first four weeks. Then, my team won two games and lost one game in the fifth week, bringing our record to 2 wins and 13 losses. Each week after that, my team won two games read more ..

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ILikeSushi Jul 27, 2022

335

base numbers

For how many n, 7 <= n <= 100, ,is the base-n number 235236_n a multiple of 2?

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Guest Jul 27, 2022

293

help plz

https://web2.0calc.com/questions/quadratic_91694

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Guest Jul 27, 2022

296

Exponents

What is the value of $n$ such that $10^n = 10^{-5}\times \sqrt{\frac{10^{13}}{0.01}}$?

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Guest Jul 27, 2022

295

Asymptotes

The graph of f(x) = (2x)/(3x^2 - 6x - 14) has vertical asymptotes x = a and x = b, and horizontal asymptote y = c. Find a + b + c.

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Guest Jul 27, 2022

294

geometry

The length of a rectangle is 7 inches more than 5 times its width. The area of the rectangle is 16 square inches. What is the width?

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Guest Jul 27, 2022

277

algebra

Suppose you know x+2y=-1$ and 3y-x=-19+x. What is xy?

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Guest Jul 27, 2022

290

Number Theory

Find the remainder when 2^70 + 3^70 is divied by 18

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Guest Jul 27, 2022

All Questions ⁺⁰237785 Questions

The parabola with equation y=ax^2+bx+c is graphed below:

Graphing question

Algebra problem

Counting and Probability

Counting and Probability

Complex numbers

Probability

Complementary Probability

quadratic

Casework Probability Problem

Ratio

geometric probability

Quadratic

Arithmetic series

please help!

triangle geometry

please help!

base numbers

help plz

Exponents

Asymptotes

geometry

algebra

Number Theory

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