Exam 3-2.pdf

Solve the system of equations below using any method you know. Show your work! 3x – 9y – z = -18x + 3y – 9z = -407x + y + z = 44

Write a matrix to display the information.When the owner of a picture framing store took inventory of her unused frames, she found that she had 42 oak-8″, 13 oak-12″, 44 oak-18″, 10 walnut-8″, and 6 walnut-18″. Write this information as a 2 x 3 matrix.

Write a matrix to display the information.Factory A makes 10 model-A, 4 model-D, and 7 model-M train sets. Factory B makes 5 model-A, 6 model-D, and 7 model-M train sets. If model-A sells for $16, model-D for $25, and model-M for $31, write a 2 x 3 matrix to summarize the income by model.

Solve the problem.Three different clothing stores order the following amounts of clothing by a certain designer: Jackets Shirts Suits Store 1: 20​ 30​ 30 Store 2: 40​ 10​ 30 Store 3: 20​ 40​ 20 The unit prices of each product are given below for two suppliers: Supplier A Supplier B Jacket 85 90 Shirt 30 30 Suit 180 200 What matrix product displays the cost to each store of buying the clothes from each supplier? Display the two matrices which must be multiplied and their product.

Consider the levels of organization of the biological world and place each of these items in order from narrowest level of organization to most encompassing: skin cell, elephant, water molecule, planet Earth, tropical rainforest, hydrogen atom, wolf pack, liver.

A mental disorder characterized by pulling out chunks of hair from the scalp or elsewhere on the body is called what?

True or false?Shorter telomeres are not associated with aging, age-related diseases such as cancer, stroke, cardiovascular disease, obesity, osteoporosis, and diabetes, and a higher risk of death.

Stress and muscle tension can cause which of the following? Select all that apply.

What is the term that is used to describe the field that combines medical and psychological approaches to cancer and has documented some of how stress affects cancer risk and prognosis?