Dr fjeldsted had 91 students in his first quarter calcus class. if the ration of math majors to non math majors if 4to 9 how many math majors are in the class?

The are 28 math majors in the class.

Step-by-step explanation:

We can solve this question using a rule of three.

The ratio of math majors to non math majors is 4 to 9

This means that 4+9 = 13 students, 4 are math majors.

The class has 91 students. How many are math majors?

13 students - 4 math majors

91 students - x math majors

The are 28 math majors in the class.

step-by-step explanation:

f(x)=2x^2 -1 

translation is a function transformation that transform the function in a way of translating. by translating the function its graph is moved  up an down. moving the function f(x) 2 units to the left will be the new function g(x) with the equation: g(x)=f(x+2)=2(x+2)^2 -1

the radius is 2 times the diameter.

step-by-step explanation: