Answer:
20, 11
Step-by-step explanation:
x=first Number
x-9=second number
above two added together=31 or
x+(x-9)=31
2x=40
x=20 first number
x-9=second number
20-9=11 second number
20 (first number) + 11 (second number)=31
31=31
➣ 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:
The critical value is
Step-by-step explanation:
The first step to solve this problem is finding how many degrees of freedom, we have. This is the sample size subtracted by 1. So
df = 8 - 1 = 7
80% confidence interval
Now, we have to find a value of T, which is found looking at the t table, with 7 degrees of freedom(y-axis) and a confidence level of . So we have T = 1.415.
The critical value is
Answer:
|- 5| + 2x = 25
Step-by-step explanation:
Try this on for size:
|- 5| + 2x = 25
If we isolate the term "x":
5 + 2x = 25,
2x = 25- 5 = 20,
x = 10 ✓