All Questions

452

complex numbers

Determine the complex number z satisfying the equation $2z - 3i \overline{z} = -7 + 2i$. Note that $\overline{z}$ denotes the conjugate of z.

textot ●

Guest Apr 22, 2021

433

Cylinder

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 8.5 cubic inches?

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Guest Apr 22, 2021

424

help with coordinates

Points P and R are located at (2, 1) and (12, -15) respectively. Point M is the midpoint of segment PR. Segment PR is reflected over the x-axis. What is the sum of the coordinates of the image of point M (the midpoint of the reflected segment)? read more ..

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Guest Apr 22, 2021

483

geometry

In the diagram below, EU = 8, UF = 7, GV = 5, VH = 8, and UV = 6. Find XY.

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Guest Apr 22, 2021

418

+515

Kinda Hard

1. The integer where and are the first and last digits of the integer respectively is divisible by What is the largest possible sum of and

2. The six-digit integer is read more ..

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mworkhard222 Apr 22, 2021

463

+184

Simon's Favorite Factoring Trick

A mathematician works for $t$ hours per day and solves $p$ problems per hour, where $t$ and $p$ are positive integers and $1

emmy18 Apr 22, 2021

476

Age

10 years ago, the ratio of Jeremy's age to randy's age to Kadens's age was 4:3:1. The sum of their present age is 102. Find Randy's age now.

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Guest Apr 22, 2021

511

+151

Fractions

Nathan began working on his report on penguins at 3:15 p.m. He worked for 1 5/6 hours and then stopped to have dinner. He started working again at 6:32 p.m. and worked for 1 1/3 hours longer. How many minutes did Nathan work on the report in all? read more ..

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Ajdabegano Apr 22, 2021

470

+151

Fractions

Nathan bought three books at the Library Lovers Month party. The one about Pluto cost one and 1/2 dollars. The one with pictures of Ferris wheels cost $2.51. The one about Friday the thirteenth cost 1 17/20 of a dollar. How much did he spend in all? read more ..

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Ajdabegano Apr 22, 2021

478

+151

M a t h

If you have 3 dozen bagels and 5 people to share them, how many dozen (or how much of a dozen) bagels does each person get?

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Ajdabegano Apr 22, 2021

495

+151

Fractions

One-fifth of the students in James' class in Perth are immigrants. If there are forty people in the class, how many students are not immigrants?

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Ajdabegano Apr 22, 2021

370

number theory

A very large number x is equal to $2^2 \cdot 3^3 \cdot 4^4 \cdot 5^5 \cdot 6^6$. What is the smallest positive integer that, when multiplied with x, produces a product that is a perfect square?

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Guest Apr 22, 2021

508

+151

Math

It was a beautiful Saturday. Joe and his friend Mike were bored and broke. They wanted to do something outside, but they also wanted to make some money. They decided to have a lemonade stand. They gathered up materials and set up an awesome stand. They read more ..

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Ajdabegano Apr 22, 2021

531

+151

Math

The Happy Hamburger served 100 customers yesterday. 3/10 of the customers ordered breakfast. 2/5 of the remaining customers ordered drive through. The rest of the customer ordered desert. How many customers ordered desert?

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Ajdabegano Apr 22, 2021

478

+151

Fractions

Clay is reading a book that is 30 pages long. He read 2/3 of the book on Saturday and 1/2 of the remainder on Wednesday. How many pages did Clay have left to read?

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Ajdabegano Apr 22, 2021

903

The vertices of Figure ABCD are A(1, 1), B(2, 3), C(4, 3), and D(5, 1). If Figure ABCD is reflected over the

The vertices of Figure ABCD are A(1, 1), B(2, 3), C(4, 3), and D(5, 1). If Figure ABCD is reflected over the line y = –1, find the coordinates of vertex B’. Enter your answers in the boxes. read more ..

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Guest Apr 22, 2021

399

math

Grant has cup of ice cream in a bowl. He then removes two cups of ice cream to share with his little brother. Which of the following best explains the amount of ice cream left in Grant's bowl?

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Guest Apr 22, 2021

416

+151

Percentage

I am thinking of two numbers. The smaller number is 90% of the bigger number. The sum of the numbers is 95. What is the difference between the two numbers?

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Ajdabegano Apr 22, 2021

335

+197

Fraction Operations

A straw for a box drink is 4 1/8 inches long and costs $0.015 to make. The straws are laid end-to-end on the conveyor belt until they extend 82 1/2 inches. How many straws are in the line and how much do they cost?

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KINGCASH Apr 22, 2021

491

geometry

Two circles have the same center C. (Circles which have the same center are called concentric.) The larger circle has radius 10 and the smaller circle has radius 8. Determine the area of the ring between these two circles.

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Guest Apr 22, 2021

528

+197

Fraction Operations

Tomas bought a bottle of shampoo that held 10.5 fluid ounces. He uses 1/16 of the shampoo every time he washes his hair. How many ounces of the shampoo are left after he washes his hair 6 times?

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KINGCASH Apr 22, 2021

468

Une horloge a une grande aiguille de 10 cm de long.Quelle distance la pointe de cette grande aiguille parcourt-elle en 12 heures?

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Guest Apr 22, 2021

1138

+79

Please help me with two questions, I don't understand them at all. Thank you!

1.
Define . That is to say, {x} is the "fractional part" of x. For example, if you were to expand a positive number x as a decimal, {x} is the stuff after the decimal point. For example and

Now, read more ..

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StarsIsTheLimit Apr 22, 2021

620

+79

Increasing, Decreasing, Even, Odd, and/or Invertible? Please help me, thank you!

For each of the following, determine if the function is increasing, decreasing, even, odd, and/or invertible on its natural domain.

For each property, write inCreasing, Decreasing, Even, Odd, inVertible in that order (alphabetical). read more ..

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StarsIsTheLimit Apr 22, 2021

All Questions ⁺⁰237677 Questions

complex numbers

Cylinder

help with coordinates

geometry

Kinda Hard

Simon's Favorite Factoring Trick

Age

Fractions

Fractions

M a t h

Fractions

number theory

Math

Math

Fractions

The vertices of Figure ABCD are A(1, 1), B(2, 3), C(4, 3), and D(5, 1). If Figure ABCD is reflected over the

math

Percentage

Fraction Operations

geometry

Fraction Operations

Une horloge a une grande aiguille de 10 cm de long.Quelle distance la pointe de cette grande aiguille parcourt-elle en 12 heures?

Please help me with two questions, I don't understand them at all. Thank you!

Increasing, Decreasing, Even, Odd, and/or Invertible? Please help me, thank you!

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