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IRINA_888 [86]
2 years ago
13

Can someone please help me pls

Mathematics
1 answer:
stepan [7]2 years ago
5 0

Answer:

The answer is 21 units²

Step-by-step explanation:

To find the area of a right triangle you use the formula A=ab/2

So

A=6×7/2 = 21

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The owner of a fish market determined that the mean weight for a catfish is 3.2 pounds with a standard deviation of 0.8 pound. A
madam [21]

Answer: The probability that a randomly selected catfish will weigh between 3 and 5.4 pounds is 0.596

Step-by-step explanation:

Since the weights of catfish are assumed to be normally distributed,

we would apply the formula for normal distribution which is expressed as

z = (x - µ)/σ

Where

x = weights of catfish.

µ = mean weight

σ = standard deviation

From the information given,

µ = 3.2 pounds

σ = 0.8 pound

The probability that a randomly selected catfish will weigh between 3 and 5.4 pounds is is expressed as

P(x ≤ 3 ≤ 5.4)

For x = 3

z = (3 - 3.2)/0.8 = - 0.25

Looking at the normal distribution table, the probability corresponding to the z score is 0.401

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z = (5.4 - 3.2)/0.8 = 2.75

Looking at the normal distribution table, the probability corresponding to the z score is 0.997

Therefore,.

P(x ≤ 3 ≤ 5.4) = 0.997 - 0.401 = 0.596

4 0
3 years ago
In Exercises 13-16, estimate the slope of the line.
mrs_skeptik [129]

Answer:

Hi there!

The answer for number 13 is 2.

I picked two coordinates: (1,1) and (2,3)

Then I used the (y1-y)/(x1-x) equation to get 2.

The answer for number 14 is 2.

I picked two coordinates: (1,0) and (2,2)

Then I used the  (y1-y)/(x1-x) equation to get 2.

6 0
3 years ago
How do I change my username because it is stuck on the email. I will give Brainliest.
Aleonysh [2.5K]

Answer:

Stated below:

Step-by-step explanation:

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6 0
3 years ago
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For a company picnic, Vijay ordered a box of fresh-baked gingerbread cookies and sugar cookies. He got 70 cookies in all. 28 of
Molodets [167]

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Step-by-step explanation:

There are 70 cookies in total.

The gingerbread cookies number 28.

The percentage that are gingerbread will therefore be:

= Number of gingerbread/ Total number of cookies * 100%

= 28 / 70 * 100%

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8 0
3 years ago
What is the length of x
Nat2105 [25]

Answer:

10 is your answer

Step-by-step explanation:

Note that the side given to us has a measurement of 5 for one of the legs of the isosceles.

This means that the <em>1</em> side on the 30-60-90 triangle has a measurement of 5.

Now, note the measurements of the triangle sides for a 30-60-90 triangle. They measure at: 1 , √3 , 2.

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5 * 2 = 10

10 is your answer

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3 years ago
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