Mathematics, 14.01.2020 04:31 mak6156
Agustin solved an equation as shown. what error did agustin make? what is the correct answer?
1/3x - 4 = 3/4x + 1
12 (1/3x) - 4 = 12(3/4x) + 1
4x - 4 =9x + 1
-5 = 5x
x= -1
Answers: 2
Mathematics, 21.06.2019 20:00, mechelllcross
Which expression is rational? 6. , square root two, square root 14, square root 49
Answers: 1
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
Mathematics, 22.06.2019 02:30, dchirunga23
How many degrees are there in the central angles in a circle
Answers: 1
Agustin solved an equation as shown. what error did agustin make? what is the correct answer?
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