Select expression that is mathematically equivalent to xy−z+ (a - b) X c. y - 2 O a) x/y – z + (a - b)
b) Xc O x/(y – z) + (a - b)
c) Xc O x/y - 2 + a - b c O
d) x/(y – z) + a – b xc

Question:

Select expression that is mathematically equivalent to

a)

b)

c)

d)

Step-by-step explanation:

Given

Required

Determine its equivalent

Start by writing y - z in bracket;

becomes

When - is used as divide, it is equivalent to /

The given expression can then be rewritten as

Hence;

is equivalent to

15%

step-by-step explanation:

use the table and count the number of guesses that has two correct answers.

the following are two correct answers

10010, 01100, 11000

a total of 3 numbers having 2 correct guesses out of 20 questions.

probability of getting 2 correct guesses = the number of questions getting 2 correct answers / total number of questions.

= 3/20

to convert it into percent multiply by 100, we get

= 3/20 * 100

= 15%

the answer is 15%

you.