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Marrrta [24]
3 years ago
11

the age in united states has a normal distribution wit a mean 46 years and the standard deviation 13 years .the children are cla

ssified as those younger than 18 years and the middle age citizen are those in the age group 18-55. if a citizen is ramdomly choosen ,what is the probability that he or she is a middle age
Mathematics
1 answer:
mamaluj [8]3 years ago
5 0

Answer:

Step-by-step explanation:1/2

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Andy is buying a new laptop computer. The store is offering a 15% discount on the model he wants. Andy also has a certificate fr
nika2105 [10]

Answer:

$899.15

0.85(1199) - 120

Step-by-step explanation:

To find the purchase total, multiply the price by the percent paid and subtract the certificate.

The store offers a 15% discount. This means you pay 85% of the price. So the discounted price is 0.85(1199) = 1019.15

Subtract the certificate 1019.15 - 120 = 899.15

The composite function is 0.85(1199) - 120.

7 0
3 years ago
Jerrilyn wrote the following argument to prove that
likoan [24]

Answer:

absolutely no idea if this is right but i put the first one

Step-by-step explanation:

5 0
3 years ago
Find the domain and range of the graph
Rainbow [258]

Answer:

Domain: [-2,1)

Range: [0,4]

Step-by-step explanation:

<u>Domain</u>

We can see that the piecewise function starts at x=-2, which is included, and ends at x=1, which isn't included. To represent the x-values that lie in between these two endpoints, you would write [-2,1). Brackets show that one endpoint is included while parentheses show that one endpoint isn't included.

<u>Range</u>

Following this logic, the range has its y-values go from 0 to 4 with both endpoints included if you were to trace the function. Thus, your range would be [0,4].

3 0
2 years ago
Substitution !! Check your solution<br><br>y - x = 3x + 2<br>2x + 2y = 14 - y (by Substitution)<br>​
GaryK [48]

Answer:

6x+7y=14

Step-by-step explanation:

this may be wrong

but i tried

8 0
3 years ago
Read 2 more answers
A 16- fl oz bottle of juice cost $2.00. What is the unit cost ?
Dmitry [639]

Answer:

$0.13 (this is a rounded answer)

Step-by-step explanation:

The unit cost is the cost of a 1 ounce bottle so you would divide the cost by the total number of ounces:

$2.00 divided by 16 is 0.125 but you would round because you need a cost not a decimal.

So your final answer would be $0.13 per ounce.

8 0
3 years ago
Read 2 more answers
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