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ss7ja [257]
3 years ago
9

A boat operates under its motor and 10 m/s and is headed downstream. If the river flows downstream at 2m/s, what is the resultan

t velocity of the boat?

Mathematics
2 answers:
Simora [160]3 years ago
8 0

Answer:

The resultant velocity will be 12m/s

Step-by-step explanation:

If the river flows downstream at 2m/s and also the boat is heading downstream at 10m/s. You can add the two velocities to get the resultant velocity:

Resultant Velocity = 10 m/s + 2 m/s = 12 m/s.

Lemur [1.5K]3 years ago
6 0

Answer:

Step-by-step explanation:

To calculate magnitude:

Given\\x=10m/s\\y=2m/s\\C=\sqrt{10^2+2^2} =\sqrt{100+4} =\sqrt{104} =10.19

To calculate angle:

tan^-^1(2/10)=11.30

So the resultant velocity of boat is

10.19 m/s at 11.30^0

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The area of a rectangle is 1,036 cm and its length is 74 cm.
Nikitich [7]

Answer:

(i) Breadth = 14 cm

(ii) Perimeter = 176 cm

Step-by-step explanation:

Given,

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(i) Breadth = ?

We know that, Area of a rectangle = length × breadth.

Then,

1036 = 74 \times Breadth\\1036  \div 74 = Breadth\\\boxed{\bf\:14 \:cm = Breadth }

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\rule{150pt}{2pt}

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2 years ago
A random sample of 20 purchases showed the sample mean of $48.77 and the sample standard deviation s is $17.58. How large is the
laila [671]

Answer:

<h2>$5.03</h2>

Step-by-step explanation:

Given data          

Sample Mean (M):  $48.77  

Sample Size (n): 20

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Confidence Level: 80%

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