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2 years ago

Can someone please help

Mathematics

1 answer:

astra-53 [7]2 years ago

6 0

I'm pretty sure that your answer is B. because your outlier is at 3, so that cancels A. Then there are no skews so that gets rid of C. Last but not least there is an an outlier so that marks out D. leaving you with B. Hope this helps!

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Tinh can row at a rate of 6 mph in still water. It takes her 2 hours to row upstream from a dock to a park. She then rows back t

scZoUnD [109]

Answer:

Option A is correct, i.e. 3 mph.

Step-by-step explanation:

Tinh can row at a rate of 6 mph in still water.

Suppose the speed of the river current is X mph.

Then Upstream speed = (6-X) mph.

And Downstream speed = (6+X) mph.

It takes her 2 hours to row upstream from a dock to a park. She then rows back to the dock, and it only takes 40 minutes.

It means Distance upstream = Distance downstream.

Speed upstream x Time upstream = Speed downstream x Time downstream.

(6-x) * 2 = (6+x) * 40/60

12 - 2x = 4 + 2x/3

12 - 4 = 2x/3 + 2x

8 = 2x/3 + 6x/3 = 8x/3

x = 3 mph.

Hence, option A is correct, i.e. 3 mph.

7 0

2 years ago

Read 2 more answers

Find the volume and round to the nearest tenth as needed

erastovalidia [21]

Answer:

1053 m^3

Step-by-step explanation:

Pyramid top 1/3 * 9 * 9 * 12 = 324 m^3

Base 9 * 9 * 9 = 729 m^3

total 1053 m^3

6 0

1 year ago

An automobile insurance company issues a one-year policy with a deductible of 500. The probability is 0.8 that the insured autom

Effectus [21]

Answer:

y₀.₉₅ = 3659

Step-by-step explanation:

P( no accident ) = 0.8

P( one accident ) = 0

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Then :

P( x < 500 ) = 0.2 ( 1 - e^-500/3000)

= 0.2 ( 1 - e^-1/6 )

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= P( y < y₀.₉₅ ) 0.95

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attached below is the remainder of the solution

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2 years ago

Graph: g(x)=5cos((\pi )/(2)x-(3\pi )/(2))-2

Tatiana [17]

$g(x)=5cos((\pi )/(2)x-(3\pi )/(2))-2$

generate by: Amplitude:5 Period:4

Phase shift:(3 to the right) Vertical shift:-2

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x=4,g(x)= -2

x=5,g(x)= -5

x=6,g(x)= -2

x=7,g(x)= 3

the graph is like cos(x)

learn more about trigonometric graphs here:

brainly.com/question/18265536

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1 year ago

3. A family is tracking its spending habits. Over the past year, the grocery bill has ranged from $110 to $170. Suppose you were

ra1l [238]

You would plot them by month, 170-110= 60 dollar increase. 60 divided by 12 ( for each month) leaves a 5 dollar increase each month. Your coordinates would be 0,110 1,115 2,120 3,125
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3 years ago