Given a = (-0.5,-0.25) and b = (5.- 6), find the direction of 4ā +b.
A. 1.2° N of E
B. 1...
Mathematics, 20.04.2020 03:57, JuJu4710
Given a = (-0.5,-0.25) and b = (5.- 6), find the direction of 4ā +b.
A. 1.2° N of E
B. 1.2° S of E
C.66.8° N of E
D. 66.8° S of E
Answers: 2
Mathematics, 21.06.2019 16:00, brittneeyy
Atrucker had a load of grain containing 2 tons. she unloaded 1 ton and 1,200 pounds at the warehouse. how much grain does she still have left on the truck?
Answers: 1
Mathematics, 21.06.2019 16:30, chintiffany4779
The perimeter of a triangle is 69 cm. the first is 5 cm shorter than the second side. the third side is twice as long the first side. find the length of each side
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Mathematics, 22.06.2019 02:30, Leii691
According to a research study, parents with young children slept 6.4 hours each night last year, on average. a random sample of 18 parents with young children was surveyed and the mean amount of time per night each parent slept was 6.8. this data has a sample standard deviation of 0.9. (assume that the scores are normally distributed.) researchers conduct a one-mean hypothesis at the 5% significance level, to test if the mean amount of time parents with young children sleep per night is greater than the mean amount of time last year. the null and alternative hypotheses are h0: μ=6.4 and ha: μ> 6.4, which is a right-tailed test. the test statistic is determined to be t0=1.89 using the partial t-table below, determine the critical value(s). if there is only one critical value, leave the second answer box blank.
Answers: 3