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Ulleksa [173]
2 years ago
6

Carlos biked miles on Saturday and miles on Sunday. On which day did he ride further and by how much? Carlos rode further on Sat

urday by miles. Carlos rode further on Saturday by miles. Carlos rode further on Sunday by miles. Carlos rode further on Sunday by miles.
Mathematics
2 answers:
Julli [10]2 years ago
5 0

Answer:D

Step-by-step explanation: I got a hundred on my test.

Katena32 [7]2 years ago
3 0

Answer:

He rode farther on Sunday

135/7 - 139/8 = 107/56 or 1 51/56 miles farther

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OLEGan [10]
Sorry
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6 0
2 years ago
Forty-two percent of primary care doctors think their patients receive unnecessary medical care (reader's digest, december 2011/
igomit [66]

Answer:

The standard error is 0.02849

Step-by-step explanation:

<u>Explanation:</u>-

given data is 42% of primary case doctors think their patients receive un-necessary medical care.

That is The proportion 'p' = 42% = 0.42

Given sample size is n =300

The standard error of the sampling distribution of the sample proportion is

se (p) = \frac{\sqrt{p(1-p)} }{\sqrt{n} }

se (p) = \frac{\sqrt{0.42(1-0.42))} }{\sqrt{300} }

use calculator on simplification , we get

standard error = 0.02849

5 0
2 years ago
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kaheart [24]

Answer:

1.5 mph

Step-by-step explanation:

Let speed of boat be x

let speed of current be c

Also, note D = RT

D is distance

R is rate

T is time

Now, for first leg, we can write:

(x+c)3 = D

And for second leg , we can write:

(x-c)4.8 = D  [note 4 hour 48 minutes is 4.8 hours]

We can equate both D's to get:

(x+c)3 = (x-c)4.8

3x + 3c = 4.8x - 4.8c

7.8c = 1.8x

We know x = 6.5 [given], plugging it in and solving for c:

7.8c = 1.8(6.5)

c = 1.5

Speed of Current = 1.5 miles per hour

3 0
2 years ago
Read 2 more answers
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Answer:

1/3

Step-by-step explanation:

The probability of a student winning is 1/4.

The probability of a prize being selected is 1/3.

The probability of Gail winning a scarf is 1/4 × 1/3 = 1/12.

The probability of Simon winning is 1/4.

The probability of either is 1/12 + 1/4 = 1/3.

6 0
2 years ago
By visual inspection determine the best-fitting regression model for the data plot below
Pie

Answer:

Exponential

Step-by-step explanation:

By visual inspection the graph generated by the points plotted is an exponential graph as the graph curves upward. The graph is also continous and differs from either a decreasing or increasing Linear graph, which shows a straight best of fit pattern. Hence, the graph most closely represents an exponential graph from visual examination.

8 0
2 years ago
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