All Questions ⁺⁰237827 Questions

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231

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Probability

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

Guest Oct 13, 2022

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245

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If 7 + 3x = 22, then 2x = ?

If 7 + 3x = 22, then 2x = ?

Guest Oct 13, 2022

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252

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Suppose we write down the smallest positive two-digit, three-digit, and four-digit multiples of 9 What is the sum of these three numbers?

Suppose we write down the smallest positive two-digit, three-digit, and four-digit multiples of 9
What is the sum of these three numbers?

Guest Oct 13, 2022

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234

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What multiple of is between 80200 and 80300 The answer is a number between 80200 and 80300

What multiple of is between 80200 and 80300
The answer is a number between 80200 and 80300

Guest Oct 13, 2022

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185

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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?

Guest Oct 13, 2022

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203

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Pythagore

calculer la longueur de la diagonale d’un cube cube de 60mm de cote

Guest Oct 13, 2022

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225

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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?

Guest Oct 13, 2022

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261

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help 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 NUTS?

Guest Oct 13, 2022

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190

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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 read more ..

Guest Oct 13, 2022

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Algebra

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 ..

Guest Oct 13, 2022

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190

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Graphing

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

Guest Oct 13, 2022

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173

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Parabola

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?

read more ..

Guest Oct 13, 2022

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251

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need help

What is $\frac{0.\overline{72}}{0.\overline{33}}$? Express your answer as a common fraction in lowest terms.

Guest Oct 13, 2022

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230

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p(x) is a sixth degree polynomial such that p(k) = 2k^2 +1 for k = ±1, k = ±2, k = ±3. If p(0) = −71 then p( √3) is

Answer is 31. How did you solve? Winner gets a free name tag from American Train Company tm.

Guest Oct 13, 2022

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239

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Kindly assist with this.

There was 3 times as much flour in Bag A than in Bag B. After 2.05 kg of flour was used from Bag A and 0.55 kg of flour was used from Bag B, both bags contained an equal amount of flour. How much flour was in Bag A at first?

Guest Oct 13, 2022

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243

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math

For how many integers x do we have $\frac14 < \frac{x}{5} < \frac23$?

Guest Oct 13, 2022

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298

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Radicals

Simplify sqrt(27)*sqrt(12)*sqrt(300)

Guest Oct 13, 2022

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192

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Domain

Find the domain of the real-valued function
f(x) = -sqrt(-10x^2 - 4x + 6)

Give the endpoints in your answer as common fractions, not mixed numbers or decimals. read more ..

Guest Oct 13, 2022

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185

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Domain

Find the domain of the function f(x) = sqrt(sqrt(x^2 - 16) + 3).

Guest Oct 13, 2022

Oct 12, 2022

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251

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+4

Please help

Let f(x)=(x^2+6x+9)^{50} -4x+3, and let r_1,r_2,.....r_100 be the roots of f(x). Compute (r_1+3)^{100}+(r_2+3)^{100}+.....+(r_100+3)^{100}.

Thanks!

LS123 Oct 12, 2022

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257

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Trapezoid

What is the area of the trapezoid shown? Express your answer in the simplest exact form.

read more ..

Guest Oct 12, 2022

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178

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Right triangle

The side lengths of a right triangle measure x, x + y, and x + 2y units where 0 < y < x. What is the value of y/x? Express your answer as a common fraction

Guest Oct 12, 2022

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