The steepness of a road is called its grade. The higher the grade, the steeper the road is. For example, an interstate highway is considered out of standard if its grade exceeds 7%. Interpret a grade of 7% in terms of slope. Use feet to explain the meaning for a driver.

A grade of 7% = 7 / 100 ;

This means that the elevation or vertical heighy of the interstate highway changes 7 feets for every 100 feets of horizontal distance moved

Step-by-step explanation:

Given that :

A road has a grade of 7%. This means that the slope of the of the highway is 7%. The slope is the proportion of rise and run. Hence the change in vertical distance with horizontal distance moved.

A grade of 7% = 7 / 100 ;

This means that the elevation or vertical heighy of the interstate highway changes 7 feets for every 100 feets of horizontal distance moved

x= -3 and

step-by-step explanation:

to find the roots of a cubic, use division or factoring to find the factors then set equal to 0. as this is a difference of cubes, it factors into

where a is the cube root of .

here   this is 27 and the cube root of 27 is 3. so we write using the form:

.

set each factor to 0 and solve for x.

x-3=0

x=3

the quadratic expression does not factor and must be solved using the quadratic formula.

where a = 1, b=3, and c=9

this cubic has two complex roots.

you forgot the options, but i found them anyways, the correct answer is "john wilson believes that words and actions based on the intellect are superior to those based on emotions".

john wilson is depicted as an extremely intelligent man. the point of the excerpt is to make a sort of distinction between emotional and rational intelligence. he happens to have both attributes, but he clearly favors his intellectual gifts. at the same time, because of his religious background, he's a little bit conflicted with this and it makes him ashamed.

hope this !