All categories

3 years ago

The table shows the race time, in minutes, for five runners.

Mathematics

2 answers:

Nikitich [7]3 years ago

5 0

The range is 7
21-14=7

mixer [17]3 years ago

5 0

Answer:

Step-by-step explanation:

OOPS I MEANT 18 I WASNT PAYING ATTENTION LOL

You might be interested in

29/5 divided by nine and a half

trapecia [35]

29/5 is 5.8 5.8 dividen by 9 1/2 is 0.61052631578

Hope this helps! Have a great day!!!

3 0

3 years ago

HELP I NEED HELP ASAP

My name is Ann [436]

Answer: is C

Step-by-step explanation:

7 0

3 years ago

In a certain board game, a 12-sided number cube

alexandr1967 [171]

Answer:

4/27 ezzzzzzzzzzzzzzzzzzzz

8 0

1 year ago

The mean cost of a five pound bag of shrimp is 40 dollars with a standard deviation of 7 dollars. If a sample of 51 bags of shri

eimsori [14]

Answer:

$P(|\bar{x}-40| > 0.6)=0.5404$

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 40 dollars

Standard Deviation, σ = 7 dollars

Sample size,n = 51

We are given that the distribution of cost of shrimp is a bell shaped distribution that is a normal distribution.

Formula:

$z_{score} = \displaystyle\frac{x-\mu}{\sigma}$

Standard error due to sampling =

$=\dfrac{\sigma}{\sqrt{n}} = \dfrac{7}{\sqrt{51}} = 0.9801$

P(sample mean would differ by true mean by more than 0.6)

$P(|\bar{x}-40| > 0.6)\\\Rightarrow = 1-P(39.4$

$P(39.4 \leq x \leq 40.6) \\\\= P(\displaystyle\frac{39.4 - 40}{0.9801} \leq z \leq \displaystyle\frac{40.6-40}{0.9801})\\\\ = P(-0.6121 \leq z \leq 0.6121)\\= P(z \leq 0.6121) - P(z < -0.6121)\\= 0.7298 - 0.2702 =0.4596$

$P(|\bar{x}|-40 > 0.6)\\= 1-0.4596=0.5404$

0.5404 is the required probability.

4 0

3 years ago

If the length of one base of a trapezoid is 5, the length of the other base is 2x + 7, and the length of the midsegment is 6x –

enyata [817]

Answer:

x = 6

Step-by-step explanation:

The midsegment of a trapezoid is the line parallel to the parallel sides of the trapezoid, which connects the midpoints of the non-parallel sides.

The length of the midsegment of the trapezoid is half the sum of the length of the parallel sides.

i.e,

Length of the midsegment = (1/2) *(Length of base1 + Length of base2)

6x - 24 = (1/2) * (5 + 2x + 7)

12x - 48 = 2x + 12

10x = 60

x=6

∴ x = 6

8 0

3 years ago