Solve the System for X and Y Using Cramerʹs Rule $$\begin{array} { l } a ^ { 2 } x + b ^ { 2 } y = a ^ { 2 } \\a x + b y = b\end{array}$$

question 39

Multiple Choice

Solve the system for x and y using Cramerʹs rule. Assume a and b are nonzero constants.
- $$\begin{array} { l } a ^ { 2 } x + b ^ { 2 } y = a ^ { 2 } \\a x + b y = b\end{array}$$

• A) \(\left\{ \left( \frac { a + b } { a } , \frac { a } { b } \right) \right\}\)
• B) \(\left\{ \left( \frac { a - b } { a } , - \frac { a } { b } \right) \right\}\)
• C) \(\left\{ \left( \frac { a + b } { a } , \frac { b - a } { b } \right) \right\}\)
• D) \(\left\{ \left( \frac { a + b } { a } , - \frac { a } { b } \right) \right\}\)

Understand and calculate the median for both even and odd-sized data sets.

Comprehend and apply the concept of geometric mean to estimate future rates of return or growth.

Identify measures of central location and their sensitivity to extreme values.

Describe the relationship between distribution shape and the location of the mean in a histogram.

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