3. mckenna was asked to write the following expression in stand
3 - 5(3a + 6)
when writing the expression in standard form, mckenna made a mistake.
3 - 5(3a + 6)
3+(-5)(3a + 6) step 1
-2(3a +6) step 2
-6a +(- 12) step 3
-6a - 12 step 4
a. mckenna made her first mistake in
b. the correct expression in standard form is

A33 gram sample of a substance that's used to detect explosives has a k-value of 0.1473. n = noekt no = initial mass (at time t = 0) n = mass at time t k = a positive constant that depends on the substance itself and on the units used to measure time t = time, in days

Atextile fiber manufacturer is investigating a new drapery yarn, which the company claims has a mean thread elongation of 12 kilograms with a standard deviation of 0.5 kilograms. the company wishes to test the hypothesis upper h subscript 0 baseline colon mu equals 12 against upper h subscript 1 baseline colon mu less-than 12 using a random sample of n equals 4 specimens. calculate the p-value if the observed statistic is x overbar equals 11.8. round your final answer to five decimal places (e. g. 98.76543).

Akitchen is 12 ft. by 14 ft. with 10 ft. high walls. how much would it cost to put vinyl flooring in this room? $8.80 per ft