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m_a_m_a [10]
3 years ago
15

A shark swims 140 meters in 15.5 seconds what is the sharks average swimming rate in meters per second

Mathematics
1 answer:
tatuchka [14]3 years ago
5 0
140/15.5 = unit rate
140/15.5 = around 9.03
Average swimming rate: 9.03 meters per second
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Isaac, a manager at a supermarket, is inspecting cans of pasta to make sure that the cans are neither dented nor have other defe
Fynjy0 [20]

Answer:

0.0064 is the probability that Isaac will find his first defective can among the first 50 cans.    

Step-by-step explanation:

W are given the following in the question:

Probability of defective can =

P(A) = \dfrac{1}{90}

We have to find the probability that Isaac will find his first defective can among the first 50 cans.

Then the number of adults follows a geometric distribution, where the probability of success on each trial is p, then the probability that the kth trial (out of k trials) is the first success is

P(X=k) = (1-p)^{k-1}p

We have to evaluate:

P(x = 50)\\= (1-\frac{1}{90})^{50-1}(\frac{1}{90})\\= 0.0064

0.0064 is the probability that Isaac will find his first defective can among the first 50 cans.

7 0
3 years ago
How do I do this problem?
Sedaia [141]
Use the reciprocal method. the first term is really 4 divided by 3/4. which is also the same as 4 multiplied by 4/3. that number is 16/3 of course. you then find a common denominator between the 2 terms. 16/3 and 3/2 can both have the denominator 6. The first term gets changed to 32/6 and the second can be changed to 9/6 and when 32/6 - 9/6 is done, it comes out to 23/6

23/6
5 0
3 years ago
What is the answer to 6a+5-x+7x-2a please
almond37 [142]
6a + 5 + x + 7x - 2a
Combine like terms.
4a + 5 + 6x
7 0
3 years ago
Read 2 more answers
. 25 points .please help Pythagoras theorem.​
Salsk061 [2.6K]

Answer:

  • 20 cm

Step-by-step explanation:

The bottom leg is divided into equal segments, one of them is b.

It means the bottom leg is b + b = 2b.

<u>According to Pythagorean:</u>

  • 41² = (2b)² + 9²

<u>Solve for b:</u>

  • 1681 = 4b² + 81
  • 4b² = 1681 - 81
  • 4b² = 1600
  • b² = 400
  • b = √400
  • b = 20 cm
4 0
3 years ago
Read 2 more answers
Hermione buys 9/10 of a pound of plums. The plums cost $1.30 per pound. How much does Hermione spend on plums? $0.90 $1.17 $1.30
qwelly [4]
<h3>Answer:</h3>

\large\boxed{\$1.17}

<h3>Step-by-step explanation:</h3>

In this question, we're trying to find how much Hermione spent on plums.

We know that:

  • Hermione bought 9/10 of a pound of plums
  • Plums cost $1.30 <em>per pound</em>

With the information above, we can solve the question.

Since we know that plums cost $1.30 per pound and Hermione bought 9/10 of a pound, we would multiply 1.30 by 0.90 in order to get the price Hermione bought the plums for. Hermione is pretty much paying 90% of the cost of a pound.

1.30*0.90=1.17

When you multiply, you should get 1.17

This means that Hermione spent $1.17 on 9/10 pound of plums.

<h3>I hope this helped you out.</h3><h3>Good luck on your academics.</h3><h3>Have a fantastic day!</h3>
3 0
3 years ago
Read 2 more answers
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