Answer: option B
Step-by-step explanation: at alpha level of 5% for a two tailed test, the critical value is +1.96 and -1.96
At alpha level of 1% for a two tailed test, the critical value is +2.576 and -2.576
Relating z = 2.77 with these critical values, we can see that at 5% level of significance, z = 2.77 is greater than +1.96 which falls in the rejection region.
Also at 1% level of significance, we can see that z = 2.77 is greater than 2.576 which also falls in the rejection region.
Answer: no real solution
Thus, the function has no x- intercept
Step-by-step explanation:
Answer:
the answer is 3/8
Step-by-step explanation:
multiply 7 by 2, and get 14
multiply 1 by 8, and get 8
give both terms new denominators which will be 16
The new fraction will be
Now you can subtract the numerators which will give you 6/16
Now you would simplify the fraction
Divide the fraction by 2 and you get 3/8 which is your answer
Hope this helps:)
9514 1404 393
Answer:
275
Step-by-step explanation:
Let h represent the number of hamburgers sold. Then the number of cheeseburgers sold is h-62, and the combined total is ...
hamburgers + cheeseburgers = combined total
h + (h -62) = 488
2h = 550 . . . . . . . . add 62, collect terms
h = 275 . . . . . . . . . .divide by 2
275 hamburgers were sold on Friday.