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Dovator [93]
3 years ago
5

Solve for(x-4)(x+4)=

Mathematics
1 answer:
Lubov Fominskaja [6]3 years ago
7 0

Answer:

x^2-16

Step-by-step explanation:

x^2-4^2

x^2-16

difference of squares

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Uma abelha rainha dividiu as abelhas de sua comeia nos seguintes grupos para exploração ambiental: um composto de 288 batedoras
sergeinik [125]

Groups of four for the group of 288 and groups of five for the group of 360

7 0
3 years ago
You are a waterman daily plying the waters of Chesapeake Bay for blue crabs (Callinectes sapidus), the best-tasting crustacean i
notsponge [240]

The question given is incomplete, I googled and got the complete question as below:

You are a waterman daily plying the waters of Chesapeake Bay for blue crabs (Callinectes sapidus), the best-tasting crustacean in the world. Crab populations and commercial catch rates are highly variable, but the fishery is under constant pressure from over-fishing, habitat destruction, and pollution. These days, you tend to pull crab pots containing an average of 2.4 crabs per pot. Given that you are economically challenged as most commercial fishermen are, and have an expensive boat to pay off, you’re always interested in projecting your income for the day. At the end of one day, you calculate that you’ll need 7 legal-sized crabs in your last pot in order to break even for the day. Use these data to address the following questions. Show your work.

a. What is the probability that your last pot will have the necessary 7 crabs?

b. What is the probability that your last pot will be empty?

Answer:

a. Probability = 0.0083

b. Probability = 0.0907

Step-by-step explanation:

This is Poisson distribution with parameter λ=2.4

a)

The probability that your last pot will have the necessary 7 crabs is calculated below:

P(X=7)=  {e-2.4*2.47/7!} = 0.0083

b)

The probability that your last pot will be empty is calculated as:

P(X=0)=  {e-2.4*2.40/0!} = 0.0907

8 0
3 years ago
Am I correct? Please check the attachment.
Sergio039 [100]
Yes you are correct
6 0
3 years ago
Jake is traveling 13 mph in his boat. After 3 hours, how far will he have traveled?
Ber [7]
Multiply 13 by 3

13 * 3 = 39 miles

Hope this helps :)
6 0
3 years ago
Read 2 more answers
Please help me!
OLEGan [10]
You need to find 7 1/2% of $29.95.
To do that, just multiply the percent by the number.

7 1/2% * $29.95 =

= 7.5% * $29.95

= 0.075 * $29.95

= $2.24625

The answer is $2.25
7 0
3 years ago
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