Rachel wants her graph to emphasize the relation of each city’s precipitation to each other city’s at each point in time. What kind of graph would be appropriate?

b.  line graph

Explanation:

Line Graphs are very useful in a number of fields ranging from Business, to Sciences to Statistics and others because of it's usefulness in presenting data in charts.

Line graphs are often most suitable and used for representing data over time/ course of a period  so that a relationship can be easily spotted. As such, it can be very useful to Rachel as she aims to show precipitation levels in the different cities.

This is down to the fact that even though there are different cities, the line graph can be plotted in such a way that it will have different lines representing different cities and thus encapsulate the data such that the relationships between each city’s precipitation to each other city’s at each point in time is very visible and emphasized.

x = 7

step-by-step explanation:

equating the expression for area to the given area

2x² - 7x - 4 = 45 ( subtract 45 from both sides )

2x² - 7x - 49 = 0 ← in standard form

to factor consider the factors of the product of the coefficient of the x² term and the constant term which sum to give the coefficient of the x- term

product = 2 × - 49 = - 98 and sum = - 7

the factors are - 14 and + 7

use these factors to split the middle term

2x² - 14x + 7x - 49 = 0 ( factor the first/second and third/fourth terms )

2x(x - 7) + 7(x - 7) = 0 ← factor out (x - 7)

(x - 7)(2x + 7) = 0

equate each factor to zero and solve for x

x - 7 = 0 ⇒ x = 7

2x + 7 = 0 ⇒ 2x = - 7 ⇒ x = -

thus the positive value for x is x = 7

the correct answer is ) possibility.

demonstrating opportunity cost is done through production possibility.

the opportunity cost can be demonstrated using the production possibility frontier or curve. this graphic shows the total number of possibilities for two products when we have the resources needed and used in an efficient manner. the main resources could be money, labor, and technology. the curve shows that the production of one good increases when the production of the othe