B. 9x-15y
Mathematics, 22.02.2021 17:30 scholar13
Which expression below is equivalent to the expression -3/4(-12x-20Y)
A. 9x+15y
B. 9x-15y
C. 9x-20y
D. 9x-20y
Answers: 1
Mathematics, 21.06.2019 23:10
Which best describes the function on the graph? direct variation; k = −2 direct variation; k = -1/2 inverse variation; k = −2 inverse variation; k = -1/2
Answers: 2
Mathematics, 21.06.2019 23:30
How do you write 600 as a product of its prime factors (index! )
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Andy has $310 in his account. each week, w, he withdraws $30 for his expenses. which expression could be used if he wanted to find out how much money he had left after 8 weeks?
Answers: 1
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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
Which expression below is equivalent to the expression -3/4(-12x-20Y)
A. 9x+15y
B. 9x-15y
B. 9x-15y
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