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just olya [345]
3 years ago
14

Jan saw 9 full moons in 52 daya

Mathematics
1 answer:
MrRissso [65]3 years ago
3 0

Answer:

1 full moon per 6 days

I'm going to guess that is what you want.

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The table shows data collected on the relationship between time spent playing video games and time spent with family. The line o
blsea [12.9K]

Complete question :

The table shows data collected on the relationship between time spent playing video games and time spent with family. The line of best fit for the data is ý = -0.36x + 94.5.

Video Games (Minutes) Time with Family (Minutes)

40 80

55 75

70 69

85 64

A) According to the line of best fit, the predicted number of minutes spent with family for someone who spent 36 minutes playing video games is 81.54.

B) Is it reasonable to use this line of best fit to make the above prediction?

Answer:

81. 54

4) The estimate, a predicted time of 81.54 minutes, is both reliable and reasonable.

Step-by-step explanation:

Given that :

The equation of best fit is defined as :

ý = -0.36x + 94.5.

A.) Predicted number of minutes spent with family (y) for someone who spends 36 minutes playing games (x) will be :

x = 36

From the model :

ý = -0.36(36) + 94.5

y = - 12.96 + 94.5

y = 81.54

Hence.nunber of minutes spent with family = 81.54 minutes.

B.) The correlation Coefficient for the model is - 0.9993, which indicates a very strong negative relationship between both variables. Hence, using this fact, we can conclude that the prediction is reliable. From the data also, spending 36 minutes playing games means such individual will have more time than someone who plays games for 40 minutes, hence, the prediction is also reasonable.

8 0
3 years ago
4x + 3y = 8<br>2x - y=9​
Alex17521 [72]

Step-by-step explanation:

Follow my steps. Sorry im bit untidy .

Follow these 1°,2°,3°

8 0
3 years ago
If a ball is thrown upward at 29.4 meters per second from the top of a building that is 80 meters high, the height of the ball c
BARSIC [14]

Answer:

<h2>124.1m</h2>

Step-by-step explanation:

29.4 per sec > Building 80m

Height = S = 4.9t^2 + 29.4t + 80

Solve for t:

t = 1.24 (approximately)

If t needed coordinates / solve using the quadratic formula:

t = (1.24 , -7.24)

<h3>The ball's maximum height is 124.1 meters.</h3>
3 0
3 years ago
What is the nth derivative of 1/x?
Juli2301 [7.4K]

Answer:

(-1)^n × (n!) × x^-(n+1)

Step-by-step explanation:

I've attached the solution

8 0
3 years ago
Jeremy built an office with a floor area of 55/14 square feet. The office is rectangular in shape. If the length of the room is
Alexxandr [17]

Answer:

110/289 feet

Step-by-step explanation:

Step one:

given data

Area of the floor= 55/14 square feet.

The length of the floor= 8 1/2 feet-----convert to simple fraction= 17/2 feet

Step two:

The expression for the area of the room is

Area= L*W

55/14= 17/2*W

55/14=17W/2

cross multiply

17W*14=55*2

289W=110

divide both sides by 289

W= 110/289 feet

6 0
3 years ago
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