All Questions ⁺⁰237665 Questions

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A partition of a positive integer n is any way of writing as a sum of one or more positive integers, in which we don't care about the

A partition of a positive integer n is any way of writing as a sum of one or more positive integers, in which we don't care about the order of the numbers in the sum.
For example, the number 4 can be written as a sum of one or more read more ..

Darkside Feb 4, 2019

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649

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How would one calculate percent with ppm and promille, for example What is 11% in parts per milion

How would one calculate percent with ppm and promille, for example
What is 11% in parts per milion

Guest Feb 4, 2019

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482

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word problem

Phill Black, a former Navy SEAL instructor has developed a game called the Push Up Game (PUG for short). The game consists of drawing a card from the FitDeck, a pack of 56 cards, and doing the exercise listed on the card (many are different variations on read more ..

Guest Feb 4, 2019

+1

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354

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+11

word problem

Phill Black, a former Navy SEAL instructor has developed a game called the Push Up Game (PUG for short). The game consists of drawing a card from the FitDeck, a pack of 56 cards, and doing the exercise listed on the card (many are different variations on read more ..

ford4968 Feb 4, 2019

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887

1

help please

Let be k the smallest positive integer such that the binomial coefficient is less than the binomial coefficient. Let a be the first (from the left) digit of and let b be the second (from the left) digit of k. What is the value of 10a+b?

Guest Feb 4, 2019

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1363

4

help

A geometric series has a sum of 180. Assuming that the common ratio of that series is 7/4, find the sum of the series

In a geometric sequence of real numbers, the sum of the first six terms is 9 times the sum of the first read more ..

Guest Feb 4, 2019

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465

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help

The sum of a geometric series whose first three terms are 8000, -12000, and 18000 is 57875. What is the last term of the series?

Guest Feb 4, 2019

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764

4

Help plz.

Sarah made an 82% on her first test. What must she get on her next test to have an average of at least 90%? (assume 100 points per test) (it must be done algebraically to be correct).

Guest Feb 4, 2019

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1723

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Pls long explanation need help fast pls

Consider a convex quadrilateral with vertices at p, q, r and s and on each side draw a square lying outside the given quadrilateral, as in the picture below. Let p,q,r and s be the centers of those squares:

a) read more ..

Guest Feb 4, 2019

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660

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USA Todsay

USA Today reported that a survey showing a starting salary for a person with a degree in computer science was expected to be close to $38,000 (rounded to the nearest thousand). This is approximately a 1 ¼ times greater than a starting salary of a person read more ..

ElectricPavlov ●

Guest Feb 4, 2019

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382

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Power Regression

r= 3%, t=36.62
r=5%, t= 21.97
r=7%, t=15.69
r=9%, t=12.21 read more ..

Guest Feb 4, 2019

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4328

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Compounded Interest

Determine the time necessary for P dollars to double when it is invested at interest rate r compounded annually, montly, daily and continuously.
r=11%
a) annually
b) monthly read more ..

Guest Feb 4, 2019

+1

548

4

Help plz. Did I get this right?

3x + 3 (x-1) < 7 - 2x + 6

I got 2 < x.
read more ..

Guest Feb 4, 2019

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537

5

Help

2x - 7 (is less than or equal to sign) 3x + 10

●●●●●

Guest Feb 4, 2019

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1520

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4 to what power is 1/4

4 to what power is 1/4

ElectricPavlov ●

Guest Feb 4, 2019

Feb 3, 2019

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854

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+283

help

Find the largest value of r such that 6r^2 + 7r + 8 = 6.

I tried to factor it out so that it was (3r + 2)(2r + 1) where r = 2/3 and r = 1/2 but 2/3 was the incorrect answers so idk...

ElectricPavlov ●●

ANotSmartPerson Feb 3, 2019

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2099

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help

A railroad trestle spans a gorge 80 feet wide and connects two cliffs at heights of 112 and 172 feet above the bottom of the gorge. A train is crossing this gorge from the higher cliff to the lower. When the front of the train has traveled 3/4 of the trestle's read more ..

Guest Feb 3, 2019

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614

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help

Suppose 5 different integers are randomly chosen from between 20 and 69, inclusive. What is the probability that they each have a different tens digit?

ElectricPavlov ●

Guest Feb 3, 2019

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618

3

help plz

Find the greatest a such that .

Guest Feb 3, 2019

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519

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trig

http://prntscr.com/mg74lo

Guest Feb 3, 2019

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812

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+1246

Help!

What is the radius, in inches, of a right circular cylinder if its lateral surface area is 3.5 square inches and its volume is 3.5 cubic inches?

Lightning Feb 3, 2019

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