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Elina [12.6K]
3 years ago
6

2/3z=-6 Help please!!

Mathematics
2 answers:
olchik [2.2K]3 years ago
6 0

Answer:

z = -9

Step-by-step explanation:

oksian1 [2.3K]3 years ago
6 0
Z=-9. Dealership to two old the right answer on my mom yummy to to 2- 2 to to to
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Suppose that a student is working on a statistic project using data on pulse rates collected from a random sample of 100 student
Hitman42 [59]

Answer:

<em>The question is incomplete. The statements are:</em>

a) I am 95% sure that all students will have pulse rates between 65.6 and

71.8 beats per minute . FALSE. The confidence interval is for the true value of the mean, not the individual values.

b) I am 95% sure that the mean pulse rate for this sample of students will fall  between 65.5 and 71.8 beats per minute . FALSE. The sample mean is already included in the CI, as it was used to calculate it.

c) I am 95% sure that the confidence interval for the average pulse rate of all  students at this college goes from 65.5 to 71.8 beats per minute . FALSE. The 95% only refers to the probability of the true mean to be within this interval.

d) I am sure that 95% of all students at this college will have pulse rates

between 65.5 and 71.8 beats per minute . FALSE. The confidence interval is for the true value of the mean, not the individual values.

e) I am 95% sure that the mean pulse rate for all US college students in

between 65.5 and 71.8 beats per minute.  FALSE. This confidence is valid only for the population of students of her college, as the sample was taken from this population.

f) Of the mean pulse rates for students at this college, 95% will fall between

65.5 and 71.8 beats per minute. FALSE. The 95% is not the probability for individual values .

g) Of random samples of this size is taken from students at this college, 95%  will have mean pulse rates between 65.5 and 71.8 beats per minute. FALSE. The 95% does not refer to the sampling distribution probabilities.

Step-by-step explanation:

<em />

8 0
3 years ago
Find s7 for 3 8 13 18
vagabundo [1.1K]
 I know u are supposed to use formulas to do this...but it is just as easy to do it this way...that is, if u dont have many numbers...if u were looking for s20, we would have used formulas...lol
u will notice that in ur pattern, their is a difference of 5 between each number....this is an arithmetic sequence

start at 3
3 + 5 = 8
8 + 5 = 13
13 + 5 = 18
18 + 5 = 23
23 + 5 = 28
28 + 5 = 33
thats ur first 7 numbers...so just add them and u will have s7
s7 = 126

7 0
3 years ago
Read 2 more answers
Fred’s company is planning a new logo. The diagrams show two similar versions of the planned logo.
seraphim [82]

Answer:

a=7.2*1.5=10.8 cm

b=6.3/1.5=4.2 cm

\pounds 4.48*2.25=\pounds 10.08

Step-by-step explanation:

<u>Proportional Geometric Shapes </u>

A) We are given two similar shapes of a logo. They are to be proportional. We only need to find the proportion ratio of two of them to find the rest of the lengths.

The upper sides have 7.5 cm and 5 cm respectively. This gives us the ratio

\displaystyle r=\frac{7.5}{5}=1.5

Which means all the measures of the smaller logo are 1.5 smaller than those of the larger. This means  

b=6.3/1.5=4.2 cm

a=7.2*1.5=10.8 cm

B) To paint the logos, we need to cover its surface, so the ratio of the surface is 1.5*1.5=2.25

This means the cost to paint the larger logo is  

\pounds 4.48*2.25=\pounds 10.08

5 0
4 years ago
How do you call a number next to a fraction
Serhud [2]
It doesn't have a formal name. However, since a fraction is division, you can call it a quotient.
6 0
3 years ago
You select a marble without looking and then put it back. if you do this 75 times, what is the best prediction possible for the
miss Akunina [59]

Answer:

The answer is N/A.

Step-by-step explanation:

You need more information. How many marbles are there? What are all the colors? You can not answer that question without knowing the rest of the equation. Like if all the marbles were orange, then you will pick an orange one up 75 times. You need more information to answer this.

4 0
3 years ago
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