All Questions ⁺⁰230619 Questions

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357

2

+296

Given these terms in a geometric series: 160−96+2885−86425+...

a. What is the common ratio

b. What is the 8thterm
read more ..

lovesosa12 Nov 28, 2020

0

415

1

If and , how many lattice points does the line pass through? (A lattice point is a point with integer coordinates.)

If and , how many lattice points does the line pass through? (A lattice point is a point with integer coordinates.)

Guest Nov 28, 2020

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309

1

tangent

A line is tangent to a circle at the point (2, 5). A parallel line is tangent to the circle at (9, 12). What is the common slope of the two lines? Express your answer as a common fraction.

Guest Nov 28, 2020

0

352

2

product of digits

The product of the digits of 3214 is 24. How many distinct four-digit positive integers are there such that the product of their digits equals 18?

Guest Nov 28, 2020

0

590

2

Добрый час ! ПОМОГИТЕ !

sqrt3(cos(pi()/B5))*((B3*B4)*B5^B6/(B6-B7)
В экселе пишет , что формула не имеет одной открывающей или закрывающей скобки , помогите , где я ошибся !
Задачу прилагаю* read more ..

Guest Nov 28, 2020

0

334

1

The three-digit number 'ab5'

The three-digit number "ab5" is divisible by 7. How many different three-digit numbers can "ab5" represent?

Guest Nov 28, 2020

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394

1

counting

How many ways are there to assign each of 7 friends to either the chemistry class or the biology class if one of these six, Manoj, refuses to be in a class without any of his friends?

Guest Nov 28, 2020

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299

0

How many triples (a,b,c) of even positive integers

How many triples (a,b,c) of even positive integers satisfy a^3 + b^2 + c <= 30?

Guest Nov 28, 2020

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348

2

algebra help

Given any positive even integer, , the positive difference between the smallest odd number greater than and the largest odd number less than can be written in the form . What is ?

Guest Nov 28, 2020

+3

506

1

+365

PLEASE HALP ASAP

Let f be defined by
Calculate .

imdumb Nov 28, 2020

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746

1

Solve a system of equations using any method: word problem

Madelyn likes to make desserts for bake sales. Last month, she made 3 batches of brownies and 3 batches of cookies, which called for 15 eggs total. The month before, she baked 1 batch of brownies and 3 batches of cookies, which required a total of 13 eggs. read more ..

Guest Nov 28, 2020

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509

3

counting

The people living on the island of Gibberish use the standard Kobish alphabet ( letters, A through M). Each word in their language is 4 letters or less, and for some reason, they insist that all words contain the letter A at least once. How many read more ..

Guest Nov 28, 2020

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357

2

For travel from Washington DC to Baltimore by car

For travel from Washington DC to Baltimore by car, a constant speed of 60 mph was maintained. For the return trip, there was a constant speed of 40 mph. What was the average speed over the whole two-way trip?

Guest Nov 28, 2020

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342

1

netmath question dur

Béatrice, Laurence et Marianne ont ensemble 2561 $. Béatrice dispose de deux fois moins d'argent que Laurence, mais elle en a quatre fois plus que Marianne. Quelle équation permet de trouver le montant x que possède Marianne? a) Solution Si x représente read more ..

Guest Nov 28, 2020

0

337

1

system of congruences

Find all numbers r for which the system of congruences
x = r (mod 6)
x = 3 (mod 20)
x = 13 (mod 45) read more ..

Guest Nov 28, 2020

Nov 27, 2020

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307

1

Number Theory

How many integers between 1 and 1,000,000 are relatively prime to 1,000,000? Thanks for help.

Guest Nov 27, 2020

0

344

1

number theory

When N is divided by 10, the remainder is a. When N is divided by 13, the remainder is b. If a = 5 and b = 6, what is N modulo 130?

Guest Nov 27, 2020

0

500

1

help with coordinates

The image of the point with coordinates (1,1) under the reflection across the line y=mx+b is the point with coordinates (8,5). Find m+b.

Guest Nov 27, 2020

0

480

1

sequence

In the sequence of numbers 3, 5, 2, ... each term after the first two is calculated as the term preceding it minus the term preceding that. So, for example, the third term is the second term minus the first term, i.e. 2 = 5 - 3. What is the sum of the first read more ..

Guest Nov 27, 2020

0

352

1

bases

What is the sum of all positive integers that have twice as many digits when written in base 2 as they have when written in base 4? Express your answer in base 10.

Guest Nov 27, 2020

0

428

1

water tank

The water tank in the diagram below is in the shape of an inverted right circular cone. The radius of its base is 16 feet, and its height is 96 feet. The water in the tank is 50% of the tank's capacity. Find the height of the water in the read more ..

Guest Nov 27, 2020

0

1661

1

rotation

Points A(-4,1), B(-1,4) and C(-1,1) are the vertices of triangle ABC. What will be the coordinates of the image of point B if triangle ABC is rotated 90 degrees clockwise about the origin?

Guest Nov 27, 2020

0

552

3

closed form sum

Find the closed form sum of 1*2*3 + 2*3*4 + 3*4*5 + ... + n(n + 1)(n + 2).

Guest Nov 27, 2020

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