25 since 150 is equivalent to 25
Answer:
x ( x^3 + x ^2 - 8x - 12 )
Step-by-step explanation:
Find the common factor in this equation.
Hope this help!
Answer:
See Explanation
Step-by-step explanation:
Solving (a): The Variables
The variables are the ages of Jaime, Crystal and Marissa;
Let
x represents Jaime's age;
y represents Crystal's age;
z represents Marissa's age
Solving (b): Equation
Solving (c): Result of the equations
-- (1)
-- (2)
-- (3)
Make y the subject in (1)
Substitute and in (3)
Collect Like Terms
Solve for x
Substitute in and
This implies that;
Jaime is 12; Crystal is 9 and Marissa is 24 years old
Solving (d): Essence of the question
The question asks that we solve for the ages of Jaime, Crystal and Marissa
For a known standard deviation a confidence level of 99% we may consider Z=<span>2.576.
So, the confidence interval would be calculated by:
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,
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,
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,
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,
Considering the given data, with a 99% cofidence, it can be said that the true mean of hours of study in a typical week for first-year college students is between 14.282 and 16.318.
the answer to the question is 43.96