Answer:
Evaluate the expression below when x = 4 and y = -2 *
hii your question is incomplete
can you please recheck once
there is no expression given
Answer: 1.282
Step-by-step explanation:
Given : Significance level : 
The alternative hypothesis : 
, which is left tail-ed , it means the test is left -tailed test i.e. one -tailed test.
By using the standard normal distribution table , we have
The critical value for a one-mean z-test corresponding to the significance level 0.10 is 1.2815515 or approximately 1.282
Hence, the critical value or values for a one-mean z-test at the 10% significance level if the hypothesis test is left-tailed = 1.282
Answer:
i. is the better option.
Step-by-step explanation:
The probability first is a King = 4/52 = 1/13.
The probability second is a Queen = 4/51.
The probability first is a King and second is a Queen = 1/13 *4/51 = 4/663.
So there is a much betert chance to bet just that the first one is a King
$ 295 because you can multiple 15×19.7 is =295.5
Answer:
2.2
Step-by-step explanation:
To find a, you use a formula called the law of cosines:
The law of cosines tells us:
a^2 = b^2 + c^2 - 2bc cosA
So lets plug in the values:
a^2 = 4^2 + 3^2 -2(4)(3)cos(32)
a^2 = 25-24cos32
a^2 is roughly equal to 4.97
therefore a roughly equal to 2.2
