The sum of the given expression is 6b^2+8b-15
<h3>Sum of expression</h3>
Given the following expression
(6b^2+5)+(8b-20)
We are to take the sum. On expansion;
6b^2+5 + 8b-20
Collect the like terms
6b^2+8b +5 - 20
6b^2+8b-15
Hence the sum of the given expression is 6b^2+8b-15
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Answer:
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Step-by-step explanation:
Answer: n>1
Step-by-step explanation:
subtract 1 from both sides
n+1-1>2-1
then simplify
n>1
Answer: 14.1%
Step-by-step explanation:
Number of T-shirts shipped = 2800
Number of T-shirts that have a defect = 396
Therefore, the experimental probability that a T-shirt has a defect will be:
= Defect T-shirts / Total T-shirts × 100
= 396 / 2800 × 100
= 14.1%
Answer:
B.
Step-by-step explanation:
Use your calculator’s normalcdf function.
normalcdf(15.9, 19.1, 17.5, 1.6) = 0.6827
That’s closest to 68%.
