All Questions ⁺⁰236352 Questions

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270

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Quadratic

In an equation of the form with k = ax^2 + bx + c, the least possible value of k occurs at x = -b/(2a). In the equation k = (6x + 12)(x - 18) , what is the least possible value for k?

Guest Apr 24, 2022

0

263

2

Analytic geo

For what value of c will the circle with equation x^2 + 6x + y^2 - 4y - 10x - 12y + c = 0 have a radius of length 4?

Guest Apr 24, 2022

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360

2

pls help for counting thanks!

how many different ways can 15 be written as the sum of 4 different counting numbers

Guest Apr 24, 2022

+1

278

1

help asap please

For each of the following, determine if the function is increasing, decreasing, even, odd, and/or invertible on its natural domain.

For each property, write inCreasing, Decreasing, Even, Odd, inVertible in that order (alphabetical). For example, read more ..

Guest Apr 24, 2022

0

257

1

Decimal

Find the largest prime number (in decimal form) that divides the sum
1_2 + 10_2 + 100_2 + 1000_2 + 10000_2.

Guest Apr 24, 2022

0

176

0

Digits

Suppose that A and B are digits in base d > 6 such that AB_d + B_d = 46_d. Find A and B.

Guest Apr 24, 2022

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189

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Algebra

Let x and y be real numbers such that 2(x^2 + y^2) = x + y + 8. Find the maximum value of x - y.

Guest Apr 24, 2022

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312

2

Right triangles

In right triangle ABC, M and N are midpoints of legs AB and BC, respectively. Leg AB is 6 units long, and leg BC is 12 units long. How many square units are in the area of triangle APC?

read more ..

Guest Apr 24, 2022

0

253

1

Inequality

Solve t/3 - 5 < t - 2 + 2t <= -3t + 7.

Guest Apr 24, 2022

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253

1

help algebra

Solve $a = 3 + \sqrt{5a - 9}$ and $b = 1 + \sqrt{5b - 5}$.

Guest Apr 24, 2022

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250

1

Basic Statistics

Suppose ten distinct, positive integers have a median of . ("Distinct integers" means that no two integers are the same.)
What is the smallest the average of those ten integers could be?
Explain your answer in complete sentences.
<read more ..

Guest Apr 24, 2022

0

215

0

Pls Help

Say that a positive integer is “five-important” if it is a multiple of 5 and/or contains the digit 5. For instance, the numbers 55, 120, and 456 are five-important, but the number 2019 is not. Say that a number is “super-five-important” if it is five-important read more ..

Guest Apr 24, 2022

0

232

1

Arithmetic sequence

Find three numbers in an arithmetic sequence, where the sum of the second and third is 12, and the product of the first and second is 5.

Guest Apr 24, 2022

0

173

0

Quadratic

Find the product of all constants t such that the quadratic x^2 + tx - 18 can be facgtored in the form (x + a)(x + b), where a and b are integers.

Guest Apr 24, 2022

0

375

1

Math

While shopping in Georgetown, Ruben bought a wooden bench that was marked down 80% from an original price of $66.72. If the sales tax in Georgetown is 5%, what was the total cost of the wooden bench?

Guest Apr 24, 2022

0

285

1

Binomial

fill in the blank with a constant, so that the resulting quadratic expression is the square of a binomial. x^2 + 22x + 8x =_____

Guest Apr 24, 2022

0

268

1

help similar triangles

In the diagram below, we have AB || DE, AC = 9, CE = , and BD=. Find CD.

Guest Apr 24, 2022

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281

1

Binomial Theorem

Find the constant term in the expansion of (2x - 1/sqrt(x) + x^2)^9

Guest Apr 24, 2022

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338

1

i needs the answer

A jewelry store bought a gold necklace and marked it up 110% from the original cost of $23.52. Later on, Dean purchased the gold necklace and paid 14.75% sales tax. How much, including tax, did he pay for the gold necklace?

Guest Apr 24, 2022

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262

1

Quadratic

Find all b for which -x^2+6x+20=b+x^2-4x+8 will have no real roots

Guest Apr 24, 2022

0

257

1

Probability

A school dance committee is to consist of 2 freshmen, 3 sophomores, 4 juniors, and 5 seniors. If 7 freshmen, 7 sophomores, 9 juniors, and 7 seniors are eligible to be on the committee, in how many ways can the committee be chosen?

Guest Apr 24, 2022

0

282

2

pls help me

What is the range of the function $f(x) = 3- 2\cdot 51^x$? Give your answer as an interval.

Guest Apr 24, 2022

0

283

1

plz help

Find the intersection of the lines 9x-4y=30 and 7x+y= Express your answer as an ordered pair (x,y).

Guest Apr 24, 2022

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