Geo777

12.11.2019 • 

Mathematics

You have just taken a standardized skills test designed to you make a career choice. your math skills score was 63 and your writing skills score was 45. the standardized math distribution is normally distributed, with m = 50, and s = 8. the writing skills score distribution is also normally distributed, with m = 30, and s = 10. based on this information, as between pursuing a career that requires good math skills or one requiring good writing skills, you should chose

Ответ:

cp838761

15.04.2021

Mathematics

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Solution given:

g-¹(-2)=?

we have

g(x)=4-2x

let

g(x)=y

y=4-2x

Interchanging role of x and y

x=4-2y

2y=4-x

dividing both side by 2

2y/2=(4-x)/2

y=(4-x)/2

f-¹(x)=(4-x)/2

now

Substitute value -2 in place of x

f-¹(-2)=(4-(-2))/2=(4+2)/2=6/2=3

the value of g-¹(-2) is 3.

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