All Questions ⁺⁰236361 Questions

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278

1

Counting

You have four tiles that say M, A, T, and H. How many words can you form from these tiles, if the letters must be in alphabetical order? For example, you can form "AHM" and "HT". (The words do not have to be valid English words.)

Guest Apr 27, 2022

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165

0

math problem

A lucky integer is a positive integer which is divisible by the sum of its digits. How many numbers from 1 to 50 are lucky?

Guest Apr 27, 2022

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341

1

help number theory

Four positive integers satisfy the following equations:
pq+2p+q = 348
qr+4q+3r = 208
rs+8r+6s = 722
read more ..

Guest Apr 27, 2022

+1

296

1

+8

Question

Is posting an off topic question still a thing or no?

off-topic

Griff Apr 27, 2022

-1

288

1

Minimum value

Let (x,y) be an ordered pair of real numbers that satisfies the equation x^2 + y^2 = 14x + 40y. What is the minimum value of x?

Guest Apr 27, 2022

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291

1

Cones

A 288 degree circular sector with radius 18 is rolled to form a cone. Find the height of the cone.

Guest Apr 27, 2022

Apr 26, 2022

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280

2

Algebra

What real value of produces the smallest value of the quadratic t^2 - 9t - 36 + 3t^2 - t + 10?

Guest Apr 26, 2022

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288

2

help probability

Two cards are chosen at random from a standard 52-card deck. What is the probability that they are either both hearts or both diamonds or both Aces?

Guest Apr 26, 2022

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290

3

Help ASAP.

In quadrilateral ABCD, we have AB = 3, BC = 6, CD = 4, and DA = 4.
If the length of diagonal AC is an integer, what are all the possible values for AC? Explain your answer in complete sentences.

Hint(s): read more ..

Guest Apr 26, 2022

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227

1

Algebra

If g(x) = sqrt((x + 3)/4), for what value of x will g(2x) = 2g(x)? Express your answer in simplest form.

Guest Apr 26, 2022

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289

1

I really need help (Algebra)

1. Suppose that the weights of 3500 registered female Great Danes in the United States are
distributed normally with a mean of 125 lb. and a standard deviation of 5.2 lb.
Approximately how many of the Great Danes weigh more than 130.2 lbs.?
2. read more ..

Guest Apr 26, 2022

-1

259

1

Algebra

Find the largest value of x for which
x^2 + y^2 = x + y + 4
has a solution, if x and y are real.

Guest Apr 26, 2022

-1

271

1

help plz

If x and y are positive integers for which 3x + 2y + xy = 115 + 14x + 4y - 2x + 5y + 3, then what is x + y?

Guest Apr 26, 2022

0

170

0

Function

Let
f(x) = -x + 3 if x <= 0
f(x) = 5x - 12 if x > 0
How many solutions does the equation f(f(x)) = 4 have? read more ..

Guest Apr 26, 2022

0

175

0

Algebra

order from least to greatest:
$\sqrt{21}$, $\sqrt[3]{27}$, $-\sqrt{64}$, $\sqrt[4]{25}$, $\sqrt{40}$, $-\sqrt[3]{81}$

Guest Apr 26, 2022

0

225

0

Coordinates

Let x and y be real numbers such that x^2 + y^2 = 2x + 4y + 6x + 8y.

Find the largest possible value of x. Find the largest possible value of 3x - 2y.

Guest Apr 26, 2022

0

466

1

Worker Bee

A worker bee has a mass of 1⋅10−4\,1\cdot{ 10^{-4}}1⋅10−41, dot, 10, start superscript, minus, 4, end superscript kg\text{kg}kgstart text, k, g, end text. There are 4⋅104 4\cdot{ 10^4}4⋅1044, dot, 10, start superscript, 4, end superscript worker bees living read more ..

Guest Apr 26, 2022

0

201

0

Triangle geometry

BE and CF are angle bisectors that meet at I. CE = 4, AE = 6, and AB = .

Find BC. Find BF.

Guest Apr 26, 2022

0

263

1

Algebra

The solutions of x(3x-7) = 17 may be expressed in the form m + sqrt n / p and m - sqrt n / p , where m, n, and p have a greatest common divisor of 1. Find m+n+p.

Guest Apr 26, 2022

0

184

0

An alloy is a mixture of metals. Suppose that a certain alloy is made by mixing

An alloy is a mixture of metals. Suppose that a certain alloy is made by mixing
300
grams of an alloy that contains
72% read more ..

Guest Apr 26, 2022

0

254

1

geometry

In rectangle ABCD, corner A is folded over crease DE to point F on BC. Find BC.

Guest Apr 26, 2022

0

234

0

Suppose that the weights of 3500 registered female Great Danes in the United States are distributed normally with a mean of 125 lb. and a st

1. Suppose that the weights of 3500 registered female Great Danes in the United States are
distributed normally with a mean of 125 lb. and a standard deviation of 5.2 lb.
Approximately how many of the Great Danes weigh more than 130.2 lbs.?
2. read more ..

Guest Apr 26, 2022

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