Help whats 13×2/3?<br>I give brainliest ofc :)

Based on the figure, select all true equations

Lady bird [3.3K]

Answer:

a) no

b) true

c) true

d) no

e) true

f) true

3 0

3 years ago

drag statements and reasons to each row to show why the slope of the line between r and s is the same as the slope between s and

serg [7]

Sorry this came pretty late but I just answered the question and thought it might help someone else later

Answer:

6 0

3 years ago

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A random sample of 17 hotels in Boston had an average nightly room rate of $165.40 with a sample standard deviation of $21.70. T

Citrus2011 [14]

Answer:

•Lower confidence limit = $155.2109

•Upper confidence limit ,= $174.5891

Step-by-step explanation:

We are given:

U = 17

x' = $165.40

S.d = $21.70

a = 10℅ (90℅ confidence interval)

For s.d(x'), we have:

S/√u = $\frac{21}{\sqrt{7}}$

= 5.2630

Therefore, S.E (x') = $5.2630

At a= 0.10 (90℅ confidence level)

and degree of freedom = 16 (17-1)

$Thus, t_1_6_, _0_._1_0 = 1.746$

90℅ confidence interval all around sample mean, will be:

(x' ± $t_(_n_-_1)$ ; a S.E (x')

= (165.4±(174.6)(5.2630)

(165.5±9.189)

($156.2109, $175.5891)

5 0

3 years ago

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Barbara claims that her horse can do simple addition problems. She showed her horse eight different cards with simple addition p

Arturiano [62]

Answer:

Barbara's horse can add

Step-by-step explanation:

To test if the horse could add, Eric he tried to calculate experimentally the probability that the horse had guessed the 8 answers.

If we call "trial" the action of throwing 8 coins and count the number of tails obtained, then eric made 53 trials.

During each trial, 8 events could have occurred:

Get 1, 2, 3, 4, 5, 6, 7 or 8 tails.

The plot of points obtained by Eric shows the frequency in which each of these 8 events occurred during the 53 trials.

The fact that the point diagram shows only one point on event 8, means that it occurred only once during the 53 trials, and compared to the other 7 events, this was the one with a lower frequency (the one that obtained the the highest frequency was the 4-tailed one, with 11 points).

This means that it is very unlikely to get 8 queues when casting 8 coins.

Therefore it also means that it is unlikely that Barbara's horse has guessed the 8 answers.

So, curiously, Barbara's horse maybe knows how to add

6 0

3 years ago

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Jessica decides to mix grades of gasoline in her truck. She puts in 7 gallons of regular and 6 gallons of premium for a total co

vazorg [7]

2.14 for regular gas and 2.33 for premium gas

5 0

3 years ago

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Help whats 13×2/3?I give brainliest ofc :)​

Help whats 13×2/3?I give brainliest ofc :)