shuttymutty9000 shuttymutty9000

02-07-2020
Mathematics

contestada

On a 12 problem test how many ways can 2 problems correct and 10 questions wrong?

Respuesta :

wolf1728 wolf1728

02-07-2020

Answer:

Basically we have to calculate how many ways 2 objects can be chosen from 12?

We use this formula

where n = 12 and r =2

12! / (2!) * (12 -2)! =

12! / (2) * 10! =

12 * 11 / 2 = 132 / 2

= 66 ways

Step-by-step explanation:

Ver imagen wolf1728

Answer Link

Otras preguntas

a violin is less than 0.5 m long. a bass fiddle is more than 1.5 m long. which instrument do you expect to be able to play notes with a lower pitch and why?

The Equation of the line of best fit of a scatter plot is y= 6x - 9. what is the slope of the equation -6 -9 9 6

Express a speed of 50 kilometers per hour as meters per second

solve these equations. show on a number line. check your anwser. |7x=5|

A symbol or picture in a writing system that combines two or more pictographs to express an idea.

find the inverse of the radical function y=-5+2/5√x

Look at picture and select all that appy

Esta camisetas son grandes,pero son pequenas

The first part of me is a month, while the rest of me is in the air. What am I? I NEED THIS ANSWER QUICK (riddle)

Explain the effect of a lack or shortage of entrepreneurs on the Economy.