Best friends Sawyer and Elliot are throwing javelins. The height of Sawyer's javelin is described as f(x) = -x²+4x, and the height of Elliot's javelin is described as f(x) = -2x²+6x, where x is the horizontal distance from the origin of the thrown javelin. Whose javelin goes higher? A. They reach the same height B. Elliot's C. Sawyer's D. There is not enough infomation given to know E. Neither javelin leaves the ground

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A:

Q: when finding the x-intercept of 0=(x+4)2 -9, is it plus and minus on both sides?

A: Given Equation is as follows

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Q: Dfx)= 4x-7

A:

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A: Please see the below picture for detailed solution.

Contingency Table

A contingency table can be defined as the visual representation of the relationship between two or more categorical variables that can be evaluated and registered. It is a categorical version of the scatterplot, which is used to investigate the linear relationship between two variables. A contingency table is indeed a type of frequency distribution table that displays two variables at the same time.

Binomial Distribution

Binomial is an algebraic expression of the sum or the difference of two terms. Before knowing about binomial distribution, we must know about the binomial theorem.