All Questions ⁺⁰230657 Questions

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249

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+13

Help and explaination please!

Problem:
Find the 3 smallest positive x-intercepts of the graph of

\[y = \cos(12x) + \cos(16x)\] read more ..

Shinigami Jul 11, 2022

0

195

3

Number theory

More than 100 students signed up to participate in the Geography Bowl competition. If teams of 3 could be made with no students left out, and teams of 9 could also be made with no students left out, what is the fewest number of students who read more ..

Guest Jul 11, 2022

Jul 10, 2022

0

130

0

the sale proce of the home was 375,000 at 5.5% commission

the sale proce of the home was 375,000 at 5.5% commission

Guest Jul 10, 2022

0

221

1

trig

Find the integer n, -90 < n < 90, such that tan n = tan 31.

Guest Jul 10, 2022

0

133

0

Algebra

Find all y such that (3y - 5)/6 = (2y - 1)*3 + 3.

Guest Jul 10, 2022

0

175

1

Algebra

Pearl writes down seven consecutive integers, and adds them up. The sum of the integers is euqal to 14 times the largest of the seven integers. What is the smallest integer that Pearl wrote down?

Guest Jul 10, 2022

0

194

1

Teacher's Age

Nicholas asks his teacher “How old are you?” His teacher tells him, “When I was your age you were only 4 years old. When you are my age, I will be 40.” What is the age of the teacher? Thanks for help.

Guest Jul 10, 2022

0

183

2

Base 3 question

When any two base 3 numbers (without the digit 2 in them) are averaged, why does the average (if it is an integer) always have a digit 2 in it?

Guest Jul 10, 2022

0

225

2

Algebra

Parker and his three friends went trick-or-treating together. If Parker got 11 pieces of candy, and each of his friends got three times as much candy as he did, how many pieces of candy did Parker and his friends get in all?

Guest Jul 10, 2022

-1

137

0

stats

What is the median of the data set {4, 16, 0, 8, 3, 11, 7, 25, 20}?

Guest Jul 10, 2022

0

221

1

math problem

The Ten Finger calculator company periodically checks random calculators before shipping crates out to customers. On Wednesday, 12 calculators from each of 6 crates of 12 calculators were tested. Two of the tested calculators were found to read more ..

Guest Jul 10, 2022

0

149

0

Algebra

A nonzero number of goats, each with four legs, and a nonzero number of chickens, each with two legs, are living on a farm. Between all the animals, there are 1/3 as many heads as there are legs. Assuming that all animals have all of their limbs, what read more ..

Guest Jul 10, 2022

0

195

2

Let\[f(x) = \begin{cases} k(x) &\text{if }x>3, \\ x^2-6x+12&\text{if }x\leq3. \end{cases} \]

Let Find the function such that is its own inverse.
Tysm!!!

Guest Jul 10, 2022

0

220

1

function

How many real numbers are not in the domain of the function
f(x) = 1/(x - 64) + 1/(x^2 + 64) + 1/(x^3 - 64)

Guest Jul 10, 2022

0

186

1

In a convex -sided polygon, the sum of the larger interior angles is degrees more than the sum of the smaller interior

In a convex -sided polygon, the sum of the larger interior angles is degrees more than the sum of the smaller interior angles. What is the average measure of the larger interior angles?
read more ..

Guest Jul 10, 2022

0

163

1

Domain

What real values of x are not in the domain of

f(x) = 1/(x^2+3x-4+x^2+9x+20+x^2-8x+7)

Guest Jul 10, 2022

0

159

0

Counting

The planning committee at school has 10 members. Exactly four of these members are teachers. A four-person subcommittee with at least two members who are teachers must be formed from the members of the planning committee. How many distinct subcommittees read more ..

Guest Jul 10, 2022

0

129

0

Algebra

How many integers have an absolute value less than 20pi + 15*sqrt(2)?

Guest Jul 10, 2022

0

136

0

Algebra

Let y = (x - 3)/(x + 7) + 1/3. The equation can be expressed in the form (x+a)(y+b)=c. Find a, b, c.

Guest Jul 10, 2022

0

132

0

Average

The average of x + 6, 6x + 2, and 4x is 4x-7. What is x?

Guest Jul 10, 2022

0

221

1

Help

Will, Mike and Sue went to dinner. Will paid 1/3rd of the dinner bill. Mike and Sue paid in the ratio 2:5. If Sue paid $6 more than Will, how much did the dinner cost?

Guest Jul 10, 2022

0

206

3

Word Problem

In a store window, there was a flat containing boxes of berries having a total weight of 100 kg. An analysis showed that the berries were 99% moisture, by weight. After two days in the sun, a second analysis showed that the moisture content of the berries read more ..

Guest Jul 10, 2022

0

173

1

Multiples

What is the smallest positive multiple of 6 that is also a multiple of 8 and 21?

Guest Jul 10, 2022

0

140

0

quadratic inequality

What is the value of b+c if x^2+bx+c>0 only when x is (-inf, -2) U (2, inf)

Guest Jul 10, 2022

0

136

0

inequalities

Select all the points that satisfy y < 2x + 3.

Guest Jul 10, 2022

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