Discount Comics is running a special: 20 comics for $5.00. Seth purchases 30 comics for $7.50. What is the sale price per comic?

Jackie earned $15 babysitting. she went to the movies the next night and spend $10. her brother paid her back $4 the next day sh

swat32

Answer:$1

Step-by-step explanation:

15-10=5 +4=9 -8= $1

4 0

3 years ago

What is the solution to equation 3 1/2 + p = 5 1/4?

Tatiana [17]

The value of p is 1 3/4

Look at the attached picture

Hope it will help you

Good luck on your assignment

8 0

4 years ago

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A man who moves to a new city sees that there are two routes he could take to work. A neighbor who has lived there a long time t

Mandarinka [93]

Answer:

(a) Confidence Interval for Route A is (38.61, 41.39)min

Confidence Interval for Route B is (42.07, 43.93)min

(b) No

Step-by-step explanation:

(a) Route A

Mean=40min, sd=3min, df=33.1, t=2.0675, n=20

CI = (mean + or - t×sd/√n)

CI = (40 + 2.0675×3/√20) = 40+1.39 = 41.39min

CI = (40 - 2.0675×3/√20) = 40 - 1.39 = 38.61min

CI for Route A is (38.61,41.39)min

Route B

Mean=43min, sd=2min, t=2.0675, n=20

CI = (43 + 2.0675×2/√20) = 43+ 0.93 = 43.93min

CI = (43 - 2.0675×2/√20) = 43 - 0.93 = 42.07min

CI for Route B is (42.07,43.93)min

(b) He should not believe the old timer's claim. The man saves an average of 3 minutes a day by driving Route A

3 0

3 years ago

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HELPPPPPPPPPPP WITH CACULAS

Norma-Jean [14]

These are four questions and four answers:

Question 1. What is the petrochemical production in 2005?

Solution:

1) The table reports the the annual Petrochemical Production p (Billion metric tons) for 2005 - 2011.

2) The years are indicated as 0, 1, 2, 3, 4, 5, 6.

3) There is a contradiction in the stament because there is a note telling that t = 0 is year 2002, which meant that the years are from 2002 - 2008, contradicting that the years are 2005 - 2011.

4) If you take for good the note the t = 3 is year 2005 and the corresponding production is 12.0, which is the option A).

5) If you take for good the initial statement that the years are 2005 - 2011, then t = 0 is 2005 and the corresponding production is 10.8

So you have to clarify with your teacher which is the right statement.

Question 2. What are the units.

Solution:

The units are indicated in parenthesis after the label of the row.

The label of the row is Petrochemical production p and the units are Billion metric tons.

So, the answer is the option D) billion metric tons.

Question 3. Graph the function f(x) = log base 2 of x

Solution:

You might create a table with some four points or use the knowledge about logarithm function.

Thiis is the knowledge you need to answer the question:

1) logarithm is an increasing function: as x increase f(x) increase)

2) log base a of a = 1

3) limit of log base a of x when x approaches 0 is negative infinity.

With those three properties you know that the answer is the first figure with certainty.

Question 4. Graph the function f(x) = 2^x

Solution:

These properties will give you the answer:

1) 2^x is the inverse function of log base 2 of x (the function of the question 2)

2) 2^0 = 1

3) 2^x is a growing function (as x increases 2^x increases)

4) 2^x is always positive.

5) limit of 2^x when x approaches negative infinity is 0.

With that you are sure that the graph of 2^x is the second figure.

4 0

4 years ago

Which is greater, 4 or 126?

poizon [28]

Answer:

Step-by-step explanation:

ummmmmm 126

4 0

3 years ago

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