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508

What did i do wrong in determining the sum for this geometric series?

Here's the series: I took what I was given into the formula where:

is the sum of number of terms
is the first term read more ..

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Guest Jul 9, 2018

417

Two Math Questions-Thanks

The town of Serenity Valley has a population of 43,433. If it grows at a rate of 6.9% for 49 years what will the population be? (answer to the nearest whole number)

Richard's furniture store bought a couch and read more ..

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Guest Jul 9, 2018

406

Help please!

Suppose a function $f(x)$ has domain $(-\infty,\infty)$ and range $[-11,3]$. If we define a new function $g(x)$ by $$g(x) = f(6x)+1,$$ then what is the range of $g(x)$? Express your answer in interval notation.

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Guest Jul 9, 2018

1055

geometric series

Compute

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Guest Jul 9, 2018

1505

+194

PLZ HELP!!!!

Parallelogram $ABCD$ has vertices $A(3,3)$, $B(-3,-3)$, $C(-9,-3)$, and $D(-3,3)$. If a point is selected at random from the region determined by the parallelogram, what is the probability that the point is not above the $x$-axis? Express your answer as read more ..

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Confusedperson Jul 9, 2018

Jul 8, 2018

429

Re-Question-I appreciate all the help

Suppose you want to go up an 11 step staircase again, but this time you have to land on the 6th step on your way up. NOW how many ways can you get to the top?

Now how many ways can you get to the top if you read more ..

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Guest Jul 8, 2018

368

Re-Question-Thanks

How many ways are there up an 11 step staircase if you can go one or two steps at a time?

Guest Jul 8, 2018

652

Help!

Five people check identical suitcases before boarding an airplane. At the baggage claim, each person takes one of the five suitcases at random. What is the probability that every person ends up with the wrong suitcase?

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Guest Jul 8, 2018

1696

Three points are chosen uniformly at random on a circle...

Three points are chosen uniformly at random on a circle. What is the probability that no two of these points form an obtuse triangle with the circle's center?

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Guest Jul 8, 2018

764

Help

In the small hamlet of Abaze, two base systems are in common use. Also, everyone speaks the truth, and no one changes which base they are using in mid-sentence. One resident said, "26 people use my base, base 10, and only 22 people speak base 14." Another read more ..

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Guest Jul 8, 2018

2316

help please

A bin has 5 white balls and k black balls in it, where is an unknown positive integer. A ball is drawn at random from the bin. If a white ball is drawn, the player wins 1 dollar, but if a black ball is drawn, the player loses 1 dollar. If the read more ..

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Guest Jul 8, 2018

798

+537

More probability

Two cards are chosen at random from a standard 52-card deck. What is the probability that both cards are numbers (2 through 10) totaling to 12?

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MathCuber Jul 8, 2018

1235

+537

Help Probability!

Two integers are relatively prime if they have no common factors other than 1 or -1. What is the probability that a positive integer less than or equal to 30 is relatively prime to 30? Express your answer as a common fraction.

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MathCuber Jul 8, 2018

1176

+1452

Help!

Two circles are externally tangent at point P, as shown. Segment CPD is parallel to common external tangent AB. Prove that the distance between the midpoints of line AB and line CD is AB/2.
read more ..

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AnonymousConfusedGuy Jul 8, 2018

1113

+198

Really need help

[removed]

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Max0815 Jul 8, 2018

1365

+586

Question

The equation y = -16t^2 + 60t describes the height (in feet) of a projectile launched from the ground at 60 feet per second upward. In how many seconds will the projectile first reach 56 feet in height? Express your answer as a decimal rounded to the read more ..

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xXxTenTacion Jul 8, 2018

876

+82

Help:

Help:

read more ..

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HelpPls Jul 8, 2018

508

Decimal.....

This decimal is rational: 0.12515622210319585788252097839671....How do I convert it to proper fraction a/b. In other words, what are "a" and "b"? Thanks for help.

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Guest Jul 8, 2018

728

+1245

Help!

Suppose the function $f(x)$ is defined explicitly by the table $$\begin{array}{c || c | c | c | c | c} x & 0 & 1 & 2 & 3 & 4 \\ \hline f(x) & 0 & 0 & 1 & 3 & 6 \end{array}$$ This function is defined only for the values read more ..

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Lightning Jul 8, 2018

946

+1245

Help!

Define $a * b$ as $2a - b^2$. If $a * 5 = 9$, what is the value of $a$?

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Lightning Jul 8, 2018

2599

Two standard dice are rolled. What is the expected number of 1's obtained? Express your answer as a common fraction.

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Guest Jul 8, 2018

Jul 7, 2018

558

Can you take a julia set of a julia set?

If you know anything about julia sets, you know that for each point on the mandelbrot set, there is a julia set. Now, can you take a point of that julia set and get another julia set from that point? that would be very interesting.

Video read more ..

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Guest Jul 7, 2018

493

Fields to plow.....

Tom can plow his field in 35 hours. Brad can plow his field, which is 75% larger than Toms, in 50 hours. Karl can plow his field, which is 2.5 times larger than Brads, in 100 hours. If the three men worked together, how long would it take them to plow all read more ..

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Guest Jul 7, 2018

418

Just One Quick Question

How many ways are there up an 11 step staircase if you can go one or two steps at a time?

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Guest Jul 7, 2018

382

One Urgent Math Question-Thanks so much

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Guest Jul 7, 2018

All Questions ⁺⁰231295 Questions

What did i do wrong in determining the sum for this geometric series?

Two Math Questions-Thanks

Help please!

geometric series

PLZ HELP!!!!

Re-Question-I appreciate all the help

Re-Question-Thanks

Help!

Three points are chosen uniformly at random on a circle...

Help

help please

More probability

Help Probability!

Help!

Really need help

Question

Help:

Decimal.....

Help!

Help!

Two standard dice are rolled. What is the expected number of 1's obtained? Express your answer as a common fraction.

Can you take a julia set of a julia set?

Fields to plow.....

Just One Quick Question

One Urgent Math Question-Thanks so much

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