I needs help on algibra
2 answers:
9514 1404 393
Answer:
Step 1: She should have added 25
Step-by-step explanation:
The second step shows that Erica wanted the result that -25 would disappear from the left side of the equation. However, by subtracting 25, she would end up with -5x - 50 on the left.
To make the sum of -25 and some number be zero, the added number must be the opposite of -25. That is, 25 must be added (to both sides).
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In the attachment, the sum in the red rectangle is -50, not 0.
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Answer:
Step-by-step explanation:
given that the Chocolate House specializes in hand-dipped chocolates for special occasions. Three employees do all of the product packaging
Clerk I II III total
Pack 0.33 0.23 0.44 1
Defective 0.02 0.025 0.015
Pack&def 0.0066 0.00575 0.0066 0.01895
a) probability that a randomly selected box of chocolates was packed by Clerk 2 and does not contain any defective chocolate
= P(II clerk) -P(II clerk and defective) =
b) the probability that a randomly selected box contains defective chocolate=P(I and def)+P(ii and def)+P(iiiand def)
=0.01895
c) Suppose a randomly selected box of chocolates is defective. The probability that it was packaged by Clerk 3
=P(clerk 3 and def)/P(defective)
=
The radius of a sphere that has a surface area of 12.56in2 would turn out to be:
4
r²
4