Which expression is not equivalent to 1/343? a. 7^4 x 7^-7 b. 7^7 x 7^-10 c. 7^2 x 7^-5. d. 7^-5 x 7^2

the correct answer is 5 6 and 7

answer:

step-by-step explanation:

here, the total dishes = 10

dishes having meat = 3 ( chicken, meatloaf and hamburger )

thus, the probability of having meat on the chosen dishes = number of dishes having meat / total dishes

=

therefore, the probability of not having meat = 1- the probability of having meat on the chosen dishes

=

=

=

⇒ option b is correct.