All Questions ⁺⁰237784 Questions

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302

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Algebra

Let M=4a^2 - 2b^2 +a. Let j be the value of M when a=5 and b=2, and let k be the value of M when a=1 and b=4. Calculate j+2k.

Guest Jul 7, 2022

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290

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Digits

In 2010, the sum of the year's digits is 3. What is the first year after 2010 in which the sum of the digits is 3, and the year is odd?

BuilderBoi ●●●

Guest Jul 7, 2022

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306

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Algebra

Let
P = 1/7 + 1/7^2 + 1/7^3 + ...
Then P can be expressed in the form a/b, where a and b are positive integers. Find the smallest possible value of a + b?

Guest Jul 7, 2022

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259

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Factors

How many different primes appear in the prime factorization of 20! + 25! ?

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303

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Digits

What is the largest number, all of whose digits are 3 or 2, and whose digits add up to 17?

BuilderBoi ●●●

Guest Jul 7, 2022

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306

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Number Theory

Let N be the product of all integers from 1 through 10 that are not divisible by 5. What is the remainder when N is divided by 17?

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301

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Units digit

What is the units digit of 1!*3!*5!*7!*9!*11! ?

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293

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counting

Given the four digits 2, 4, 6, 7, and 8, how many different positive two-digit integers can be formed using these digits if a digit can be repeated in an integer?

Guest Jul 7, 2022

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284

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geometry

A square has a diagonal of length 10 centimeters. What is the number of square centimeters in the area of the square?

Guest Jul 7, 2022

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307

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PLZ HALP thank you

What is the value of
ty!

Guest Jul 7, 2022

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280

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help plz

One endpoint of a line segment is (4,3) and its midpoint is (8,19). What is the sum of the coordinates of the other endpoint?

Guest Jul 7, 2022

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282

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coordinates

The circle 2x^2 = -2y^2 + 12x - 4y + 28 is inscribed inside a square which has a pair of sides parallel to the x-axis. What is the area of the square?

Guest Jul 7, 2022

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217

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What The Answer?

What's 04856+047164+999=

Guest Jul 7, 2022

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211

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Counting

How many 3-digit numbers have the property that the units digit is at least twice the tens digit plus 5?

Guest Jul 7, 2022

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297

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Math

What is the minimum possible product of three different numbers of the set {-8,-6,-4,0,3,5,7,8}?

Guest Jul 7, 2022

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288

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Algebra

Find t if the expansion of the product of x^3 - 4x^2 + 5x - 5 and x^2 + tx - 7 has no x^2 term.

Guest Jul 7, 2022

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292

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Parallelogram

In the figure below, ABCD is a parallelogram, AD=18 and DC=32. Segments EG and FH are perpendicular to sides of the parallelogram as shown, and EG=16. What is the area of the parallelogram?

read more ..

Guest Jul 7, 2022

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216

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how to round to 2 significant figures

how to round to 2 significant figures

Guest Jul 7, 2022

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212

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Polynomials

There is a polynomial which, when multiplied by x^2 + 2x + 3, gives 2x^5 + 3x^4 + 7x^3 + 6x^2 + 15x + 9. What is that polynomial? (Give your answer as a polynomial in which the terms appear in order of decreasing degree. In other words, "x^5 + x + 2" is read more ..

Guest Jul 7, 2022

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332

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+491

Does this actuallly have an answer?

Im very confused by this

Elijah Jul 7, 2022

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321

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Coefficient

What is the coefficient of x in (x^4 + x^3 + x^2 + x + 1)^5?

Guest Jul 7, 2022

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223

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Coefficient

What is the coefficient of x^3 in (x^4 + x^3 + x^2 + x + 1)^5?

Guest Jul 7, 2022

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295

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Coordinates

The length of the segment between the points (2a, a - 4) and (4,-7) is 2*sqrt(2) units. What is the product of all possible values for a?

Guest Jul 7, 2022

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