The cost of DVDs will grow at a rate of $1.40 each year. In 2013, a new DVD cost $17.99. Let z be the number of years since 2013.
Which function models the price of a new DVD 2 years after 2013?
O f (I) = 17.99 + 1.0141
O f (x) - 17.99 +1.42
O f (2) - 17.99(1.4)
O f (2) -- 17.99(1.014)

Answer:

The 98% confidence interval estimate of the mean is between 32.45 hg and 34.75 hg.

32.3 is not a part of the confidence interval, which means that yes, these results are very different from the confidence interval 32.3 hg​

Step-by-step explanation:

We have that to find our [tex]\alpha[/tex] level, that is the subtraction of 1 by the confidence interval divided by 2. So:

[tex]\alpha = \frac{1 - 0.98}{2} = 0.01[/tex]

Now, we have to find z in the Ztable as such z has a pvalue of [tex]1 - \alpha[/tex].

That is z with a pvalue of [tex]1 - 0.01 = 0.99[/tex], so Z = 2.327.

Now, find the margin of error M as such

[tex]M = z\frac{\sigma}{\sqrt{n}}[/tex]

In which [tex]\sigma[/tex] is the standard deviation of the population and n is the size of the sample.

[tex]M = 2.327\frac{6.2}{\sqrt{157}} = 1.15[/tex]

The lower end of the interval is the sample mean subtracted by M. So it is 33.6 - 1.15 = 32.45 hg

The upper end of the interval is the sample mean added to M. So it is 33.6 + 1.15 = 34.75 hg

The 98% confidence interval estimate of the mean is between 32.45 hg and 34.75 hg.

Are these results very different from the confidence interval 32.3 hg​

32.3 is not a part of the confidence interval, which means that yes, these results are very different from the confidence interval 32.3 hg​

Answer:

r = 1 ft

Step-by-step explanation:

Using the formula

d=2r

Solving for

r = d/2 = 2/2 = 1 ft

Answer:

m< K =60

m< L =90

m< KMI =30

m< LMA =150

Step-by-step explanation:

hope it helps you

have a great day!!!

Answer:

8 years

Step-by-step explanation:

Answer:

3/4

Step-by-step explanation:

3/4 is greater than 1/2 and still less than 1 whole.

Answer:

The answer is cost = 50 + 30x

Step-by-step explanation:

Answer:

The correct answer is cost = 50 + 30x

Step-by-step explanation:

Answer:

[tex] 16 \: {m}^{2} [/tex]

Step-by-step explanation:

Area of the quadrilateral

[tex] = \frac{1}{\cancel 2} \times 8 \times \cancel 2 + \frac{1}{\cancel 2} \times 8 \times \cancel 2 \\ \\ = 8 + 8 \\ \\ = 16 \: {m}^{2} [/tex]

Answer:

X = 50

Step-by-step explanation:

2/5x = 20

x = 20÷2/5

x = 20 × 5/2

x = 10 × 5

x = 50

Answer:

$400 and $1,000

Step-by-step explanation:

Let us assume the x be the amount invested in 7% account

And, 600 + x be the amount invested in 9% account

Now the equation is

7x% + 9%(600 + x) = $118

0.07x + 54 + 0.09x = $118

0.16x = $118 -$54

0.16x = $64

x = $400

And, the other one is = $400 + $600 = $1,000

Answer:

54 Degrees

Step-by-step explanation:

<5 is going to be whatever 180-<3 is.

Answer:

your answer: m<5=54 degree

Step-by-step explanation:

hope it helps u

have a great day !!

Answer:

positive 5/8

Step-by-step explanation:

i guess im a helper

Answer:

B

Step-by-step explanation:

the slope formula is y/x, and the line goes up 5 units and right 8 units.

so the slope is 5/8

Answer:

complementary angles sum to 90° 90° - 70° = 20° complementary of 70° is 20°

Answer:

4.  [tex]\frac{131}{12}[/tex] = [tex]10\frac{11}{12}[/tex]

6.  [tex]\frac{236}{15}[/tex] = [tex]15\frac{11}{15}[/tex]

8.  [tex]\frac{51}{5}[/tex] = [tex]10\frac{1}{5}[/tex]

10. [tex]\frac{31}{6}[/tex] = [tex]5\frac{1}{6}[/tex]

12. [tex]\frac{193}{25}[/tex] = [tex]7\frac{18}{25}[/tex]

14. [tex]\frac{7}{3}[/tex] = [tex]2\frac{1}{3}[/tex]

16. [tex]1[/tex]

18. [tex]\frac{16}{3}[/tex] = [tex]5\frac{1}{3}[/tex]

20. [tex]\frac{309}{28}[/tex] = [tex]11\frac{1}{28}[/tex]

22. [tex]20.3[/tex]

24. [tex]30, 45, 60[/tex]

26. no, no, yes, yes

Step-by-step explanation:

If you have any questions feel free to ask - Mark

Step-by-step explanation:

by Pythagoras theorem:

perpendicular² + base²= hypotenuse²

(1/√2)²+ (1/√3)² = H²

1/2+1/3= H²

5/6 = H²

√(5/6 )= H

√5/√6 = H

plz mark my answer as brainlist plzzzz.

hope this will be helpful to you

Answer:

Supplementary Angles

Step-by-step explanation:

Two (or more) angles whose

sum is 180°

Answer:

hope it helps you

have a great day!!

Answer:

each taco costs $8 and each soda $4

Step-by-step explanation:

the difference between the two is $16 and half of $16 is $8 so you can tell each taco is $8. That automatically shows that the rest of the cost is $8 which half of is $4

Answer:

(1, 6)

General Formulas and Concepts:

Algebra I

Functions

Graphing

Reading a Cartesian Plane

Solving systems of equations by graphing

Step-by-step explanation:

Where the 2 equations intersect is the solutions to the systems of equations.

Answer:

So for the head and tails one it is 1/1 chance of getting a head and for the dice on it is 1/21 that's the porbability hopes this helps :)

Step-by-step explanation:

Probability of getting a head on the coin and a 4 on the die​ is 0.083.

Probability defines the likelihood of occurrence of an event. Probability can be defined as the ratio of the number of favorable outcomes to the total number of outcomes of an event.

Probability(Event) = Favorable Outcomes/Total Outcomes

According to the question

A coin is flipped and a die is rolled

Probability of getting a head on the coin and a 4 on the die​:

Total Number of favorable outcomes(coin is flipped) = {H, T}  = 2

Number of favorable outcomes (head) = 1

Total Number of favorable outcomes(die is rolled) = {1, 2, 3, 4, 5, 6}  = 6

Number of favorable outcomes (4 on the die) = 1

P(head) = [tex]\frac{1}{2}[/tex]

P(4) = [tex]\frac{1}{6}[/tex]

P(head and 4) = [tex]\frac{1}{2}[/tex]. [tex]\frac{1}{6}[/tex]

= [tex]\frac{1}{12}[/tex]

= 0.083

Hence, Probability of getting a head on the coin and a 4 on the die​ is 0.083.

Find out more information about Probability here

https://brainly.com/question/11234923

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Answer:

The last one is the answer

Step-by-step explanation:

39+91=130

13(10)=130

130=130

Answer:

13(3 + 7)

Step-by-step explanation:

First do 3 + 7 and that is 10.

Then do 10 x 13 and that is 130.

Finally compare 91 + 39 = 130 to 13(3 + 7)

Answer:

Step-by-step explanation:

If the birdhouse is a cube that is 2 ft on each edge, the surface area is 6×2² = 24 ft². That's a pretty large birdhouse, and it will need about ¾ of a pint of paint.

Answer:

The expression is negative

Step-by-step explanation:

11/-3 is negative

-11/-3 is positive

negative + positive or positive + negative =  negative

Answer:

21

Step-by-step explanation: