»select all the expressions that are equivalent to 10^-6 x 7^-6
a. 70^36
b. 70^-6
c. 1/70^-6
d. 70^-12

Human body temperatures have a mean of 98.20° f and a standard deviation of 0.62°. sally's temperature can be described by z = 1.4. what is her temperature? round your answer to the nearest hundredth. 99.07°f 97.33°f 99.60°f 100.45°f

What is the absolute value of the complex number -4-sqrt2i

Serena is making an experiment. for that, she needs 20 grams of a 52% solution of salt. she has two large bottles of salt water: one with 40% and the other with 70% of salt in them. how much of each must she use to make the solution she needs? i am in need of