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Rainbow [258]
3 years ago
5

How do you do answer these math question I got confused

Mathematics
1 answer:
Sladkaya [172]3 years ago
4 0
The first one I THINK is 21 and the second one I THINK is 20. I'm not sure though sorry if I'm wrong
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If points A,B and C are collinear, determine the value of x in the diagram.
kobusy [5.1K]

Answer:

x equal four-teen... I'm pretty sure brainliest plsss

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3 years ago
Suppose that the weights of 5400 registered female Labrador retrievers in the United States are distributed normally with a mean
Maurinko [17]

Answer:

N= 4543 Labrador retrievers

Step-by-step explanation:

We know that the mean \mu is:

\mu = 62.5

and the standard deviation \sigma is:

\sigma=2.5

The probability that a randomly selected Labrador retriever weighs less than 65 pounds is:

P(X

We calculate the Z-score for X =65

Z = \frac{X-\mu}{\sigma}\\\\Z =\frac{65-62.5}{65}=1

So

P(X

Looking in the table for the standard normal distribution we have to:

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Finally the amount N of Labrador retrievers that weigh less than 65 pounds is:

N = P(X

N = 0.8413*5400

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6 0
3 years ago
A bakery offers a sale price of $2.80 for 3 muffins. What is the price per dozen?
puteri [66]

Answer: 11.2$

Step-by-step explanation:

8 0
3 years ago
Sovle the following inequality -3m + 18 < 30​
denis-greek [22]

Answer:

m>-4

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7 0
3 years ago
Solve plssszzzzagavagsg
julia-pushkina [17]

Answer:

OOO I KNO ITS 7.2 15.6 OK

Step-by-step explanation:

SO WHAT YOU DO IS 7.2 THEN ROUND SO THEN ITS 6 THEN 15.6 16

THEN YOU WILL DIVIDE. I HOPE THIS HELPS

THIS IS HOW I LEARNED BUT I COULD BE WRONG.

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OH AND HAVE A WONDER FULL DAY

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