Are the following statements true or false? 1. For any scalar c and any vector ⃗ , we have ||c⃗ ||=c||⃗ ||.2. (⃗ ×⃗ )⋅⃗ =⃗ ⋅(⃗ ×⃗ ).3. The value of ⃗ ⋅(⃗ ×⃗ ) is always zero.4. If ⃗ and ⃗ are any two vectors, then ||⃗ +⃗ ||=||⃗ ||+||⃗ ||.

Jonathan pays $1.90 per pound for potatoes. he buys 8.3 pounds of potatoes. he determines that he will pay $15.77, before tax, for the potatoes. which best describes the reasonableness of jonathan’s solution? jonathan’s answer is reasonable because there are two decimal places in the factors and two in the product. jonathan’s answer is unreasonable because there are three decimal places in the factors and two in the product. jonathan’s answer is reasonable because is 16, and 16 is close to 15.77. jonathan’s answer is unreasonable because is 8, and 8 is not very close to 15.77.

Janie has $3. she earns $1.20 for each chore she does and can do fractions of chores. she wants to earn enough money to buy a cd for $13.50. write an inequality to determine the number of chores, c, janie could do to have enough money to buy the cd.

Question 10 of 211 pointuse the elimination method to solve the system of equations. choose thecorrect ordered pair.10x +2y = 643x - 4y = -36a. (4,12)b. (-3, 11)c. (2,10)d. (-5, 8)