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9966 [12]
2 years ago
15

1. If I can buy 3 pounds of grapes for $7.00, how much will 12 pounds cost?

Mathematics
2 answers:
Lena [83]2 years ago
7 0
So 3 times 4 is 12 so 7 times 4 is 28 so the answer should be $28.00 but
Sladkaya [172]2 years ago
6 0
7*4= $28 (hope this help!)
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What is -5 2/3 divided by -3?
sweet [91]
The answer to this question is 1.88888888889 or rounded to 2.0
6 0
3 years ago
Given that z is a standard normal random variable, find z for each situation. The area between 0 and z is .4750. Answer The area
algol13

Answer:

P(0

And solving for z we have

P(Z

And we can find the value for z with the following excel code:

"=NORM.INV(0.975,0,1)"

And we got z =1.96

P(Z>z)= 0.1314

And we can use the complement rule and we got:

P(Z>z) = 1-P(Z

P(Z

And we can find the value for z with the following excel code:

"=NORM.INV(0.8686,0,1)"

And we got z =1.120

P(Z

And we can find the value for z with the following excel code:

"=NORM.INV(0.67,0,1)"

And we got z =0.440

Step-by-step explanation:

Previous concepts

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".

The Z-score is "a numerical measurement used in statistics of a value's relationship to the mean (average) of a group of values, measured in terms of standard deviations from the mean".  

Solution to the problem

We want this probability:

P(0

And solving for z we have

P(Z

And we can find the value for z with the following excel code:

"=NORM.INV(0.975,0,1)"

And we got z =1.96

For the next part we want to calculate:

P(Z>z)= 0.1314

And we can use the complement rule and we got:

P(Z>z) = 1-P(Z

P(Z

And we can find the value for z with the following excel code:

"=NORM.INV(0.8686,0,1)"

And we got z =1.120

For the next part we want to calculate:

P(Z

And we can find the value for z with the following excel code:

"=NORM.INV(0.67,0,1)"

And we got z =0.440

6 0
3 years ago
Can someone help?Where do i put the dotts...I need answers asap!!!
Semmy [17]
1 5/8 2 4/8 is the anwser
7 0
3 years ago
Read 2 more answers
Help please! will put brainliest
Pepsi [2]

Answer:

please press on (select) so we can choose the answers and I will help you

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
Factor completely x2 - 49
siniylev [52]

Answer: (x + 7)(x - 7)

Explanation: If a variable is taken to an even power, that variable is a perfect square. In this case, x² would therefore be a perfect square.

Since 49 is also a perfect square, what we have here is the difference of two squares. That can be factored as the product of two binomials one with a plus in the middle and one with a minus in the middle.

In the first position will be the factors of x² that are the same.

So we have <em>x</em> and <em>x</em>.

In the second position we will have the

factors of 49 that are the same, 7 and 7.

(x + 7)(x - 7) is your answer which is a factored version of x² - 49.

5 0
3 years ago
Read 2 more answers
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