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Volgvan
3 years ago
7

A 20-foot ladder is leaning against a building. If the bottom of the ladder is sliding along the pavement directly away from the

building at 2 ?feet/second, how fast is the top of the ladder moving down when the foot of the ladder is 3 feet from the? wall?The top of the ladder is moving down at a rate of _____ ?feet/second when the foot of the ladder is 3 feet from the wall. ?(Round to the nearest thousandth as? needed.)

Mathematics
1 answer:
zaharov [31]3 years ago
7 0

Answer: The top of the ladder is moving down at a rate of 0.303 feet / second

Step-by-step explanation: Please see the attachments below

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The sum of 2 composite numbers is never a prime number. Explain your answer.
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Answer:

Step-by-step explanation:

Composite numbers are positive numbers that have factors, This means that they are divisible by numbers other than 1 and itself provided that number is a factor of the composite number. They possess at the bearest minimum level, a divisor other than  1 and itself. They are a natural number that is expressible as the product of two(or more) numbers other than 1 and itself.

For example:

4 is a composite number because its factors are 1, 2 and 4 which have another divisor apart from 1 and itself (4). That divisor is 2.

We all know that prime numbers are numbers that can be only be divided by 1 and itself.

Therefore, the sum of two composite number, for example:

4 + 6 = 10, We can now see that 10 is never a prime number.

5 0
3 years ago
At Ice Cream Haven, 14 of the last 18 sundaes sold had nuts. What is the experimental probability that the next sundae sol...
Pepsi [2]

Answer:

7/9 or 2/9, depending on the question!

Step-by-step explanation:

Probability that next sundae has nuts is 14/18 = 7/9.

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3 years ago
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