Answer:
122620.6908
Step-by-step explanation:
Just follow PEMDAS and it's not hard at all.
Answer:
1. a. z test for means and t test for means.
2. C. HA : mu1 - mu2 > 0
Step-by-step explanation:
Hypothesis testing is used in a situation where there are more than 1 alternative available. The t test is conducted in the mean which determines the t value and then this value is compared with p value to identify the situation whether to accept or reject the null hypothesis. The alternative hypothesis in this situation is is represented by mu.
➣ Assignment: 
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➣ Answer: 
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Explanation: ↓↓↓↓↓
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➤ [ Step One ] Follow PEMDAS Order Of Operations
➤ [ Step Two ] Rewrite Equation
➤ [ Step Three ] Calculate Within Parenthesis
➤ [ Step Four ] Rewrite Equation
➤ [ Step Five ] Multiply
➤ [ Step Six ] Rewrite Equation
➤ [ Step Seven ] Calculate Exponents
➤ [ Step Eight ] Rewrite Equation
➤ [ Step Nine ] Solve
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Answer:
x = 9
Perimeter = 74
Area = 342
Step-by-step explanation:
First, find x. to do so, set your formula up as
18 = 8x - 54
18 + 54 = 8x
72 = 8x
72/8 = x
9 = x
Now that you have x, find your missing side
2x + 1 = y, x
2 * 9 + = y
19 = y
Your perimeter is P = 2(l+W)
P = 2(18 * 19)
P = 74
Your area is A = wl
A = 19 * 18
A = 342
You split the abs val into a pos and neg soln to write
x–5 = 3 and x–5 = –3
x = 8 and x = 2
