What is the multiplicative identity of the complex number - 4 + 8i?

How is a debit card similar to an ATM card? a. Each is only available to adults 18 and older. b. Any one person can only have one of each at a time. c. Both can be used to withdraw money from ATMs. d. Both can be used to make purchases online.

What is the greatest common factor of 56 and 21

Solve for x for the equations y=2x-10 2Y=x-8

A botanist collected one leaf at random from each of 10 randomly selected mature maple trees of the same species. The mean and the standard deviation of the surface areas for the 10 leaves in the sample were computed.

F the volume for 3-D pyramid A is 300 cm3 and the volume for 3-D pyramid B is 900 cm3, how many times bigger is the volume of pyramid B than pyramid A?

What are the x - and y - intercepts for the line y+8=4 (x-5) y+8=4 (x-5) ? Enter your answers as a whole number in the boxes. The x-intercept is . The y-intercept is

Which of the following analyses involves making hypothetical changes to the data associated with a problem and observing how these changes influence the results? Select one: a. predictive analysis b. linear regression analysis c. what-if analysis d.

Lucy has to run two errands. She starts from home and travels 3 miles south to the post office. From the post office, she travels 4 miles east to the gas station. Then, from the gas station, she travels 5 miles to return home.

Item 9 A company that offers tubing trips down a river rents tubes for a person to use and "cooler" tubes to carry food and water. A group spends $270 to rent a total of 15 tubes. Write a system of linear equations that represents this situation.

What are two ratios equivalent to 10:85