3 years ago

Define binary operation.

1 answer:

5 0

a mathematical operation, such as addition or multiplication, performed on two elements of a set to derive a third element.

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Z^2 -6z+9=0 Factor and solve

Ymorist [56]

Factor because if we have
yz=0 then we can assume y and/or z=0

so factor
so the easiest way is to find what 2 numbers add to -6 and multiply to get 9 so
we know that they must be both - because we must have x+x=(-) and x^2=+ so therefor they must be negative
factors of 9=3 and 3 so
-3 and -3
-3+-3=-6 perfect

(z-3)(z-3)=0

set each to zero
z-3=0
add 3
z=3

z=3 is the answer

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2 years ago

HELP PLS’ Suppose you roll a die. Find the probability of the given event. Simplify your answer.

NikAS [45]

The answer is 2) 2/3

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3 years ago

Mrs. Smith left a 15% tip for a dinner that cost $62.40. About how much tip did Mrs. Smith leave?

Veronika [31]

Given :- 