Given a mean of 61.2 and a standard deviation of 21.4, within how many standard deviations of the mean do the values 45,78,62,90
2 answers:
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Answer:
5 kg
Step-by-step explanation:
To solve this problem, we can use the rule of three.
In fact, we know that:
- 1 kilogram is equivalent to 2.2 pounds
- The ratio between the mass in kilograms and in pounds is constant for every value of the mass
- Therefore, the mass in kilograms corresponding to 11 pounds can be found by writing the following equation:
Where
x is the mass in kilograms corresponding to 11 pounds.
Solving the equation for x, we find:
Hello!
<u><em>Answer: </em></u>
<u><em>1. =-6</em></u>
<u><em>2. =39</em></u>
<u><em>3. =-603</em></u>
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Explanation: This question's it's about the order of operations. It stands for p-parenthesis, e-exponents, m-multiply, d-divide, a-add, and s-subtract. It can also go left to right. (PEMDAS)
1. -4(3-1)+2
Do parenthesis first.
Then do multiply left to right.
Add left to right.
*Answer should be have negative sign.*
Answer: →
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2. 3⋅[(30−8)÷2+2]
Do parenthesis first.
Then divide left to right.
Add left to right.
Multiply left to right.
*Answer should be have positive sign.*
Answer: →
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3. 14(1-23)2+13
Do parenthesis first.
Then, you multiply left to right.
Add/subtract left to right.
*The answer must be have a negative sign*
Answer: →
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Hope this helps!
Thank you!
Have a great day!
-Charlie