3 years ago

Which statement is most likely to be true for this distribution

Mathematics

1 answer:

Nady [450]3 years ago

5 0

Answer:

???idkv

Step-by-step explanation:

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A ferry departs from a port along the Sands River at 10:00 am. The ferry travels at a speed of 15 mph in still water and returns

jek_recluse [69]

Answer:

Speed of river's current = 5 mph

Step-by-step explanation:

Let 'd' be the distance covered

Let x be the speed of the rivers current

Speed upstream = 15-x

speed downstream = 15+x

Time = distance / speed

time upstream = $\frac{d}{15-x}$

time downstream = $\frac{d}{15+x}$

the ferry trip upstream takes twice as long as its return trip downstream

$\frac{d}{15-x}$ = $\frac{2d}{15+x}$

divide both sides by d

$\frac{1}{15-x}$ = $\frac{2}{15+x}$

cross multiply

$15+x= 2(15-x)$

$15+x= 30-2x$

Add 2x on both sideds

$15+3x= 30$

subtract 15 from both sides and divide by 3

$3x=15$

x=5

Speed of river's current = 5 mph

8 0

3 years ago

From a point 50m from the base of the Skylon Tower in Niagara Falls, the angle of elevation to the top of

VladimirAG [237]

Answer:

The tower is about 235 m.

Step-by-step explanation:

Let x be the height of the tower

tan θ = opp / adj

tan 78 °= x / 50

x = 50 tan 78 °

x = 235

∴ The tower is about 235 m.

Hope this answer helps you :)

Have a great day

Mark brainliest

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3 years ago

What is the range of the function g(x) = 3x^2 - 6x + 3 when the domain is defined as the set of integers, x, such that 0<=x&l

kakasveta [241]

Answer:

Range is 3 <= g(x) <= 27.

Step-by-step explanation:

The range is the values of g(x) for the given domain.

When x = 0 g(x) = 3(0)^2 - 6(0) + 3 = 3.

When x = 4 g(x) = 3(4)^2 - 6(4) + 3 = 27.

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3 years ago

I need help please and thank you

grin007 [14]

Answer:30

Step-by-step explanation:

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3 years ago

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A box contains five keys, only one of which will open a lock. Keys are randomly selected and tried, one at a time, until the loc

Schach [20]

Answer:

Step-by-step explanation:

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3 years ago