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3 years ago

Convert 0.8 m/s to km/hplss show your work

Mathematics

1 answer:

dem82 [27]3 years ago

4 0

Answer:

2.88 kilometres per hour

multiply the speed value by 3.6

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A bag contains 5 red marbles, 6 blue, and 4 green. If three marbles are drawn what is the probability to the nearest 10th all th

fredd [130]

Answer: 4.4%

Step-by-step explanation:

Probability of drawing blue first is 6 in 15

Assuming you get that one, the second is 5 in 14 (as you've taken a blue one out)

If that's successful you have 5 in 13 chances of pulling another blue

As you want the first AND second AND third to happen, you multiply them…

(6/15)*(5/14)*(4/13) = 0.04395

So as a percentage, to the nearest tenth is 4.4%

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3 years ago

A plane is approaching an aircraft carrier at 25° angle of elevation from 3.2 miles away how far above sea level is the plane

s2008m [1.1K]

Answer:

$Height\approx 1.35\ miles$

Step-by-step explanation:

The angle of elevation $=25\textdegree$

It is $3.2\ miles$ away from the point.

If we imagine a right triangle having an angle $25\textdegree$ .

Hypotenuse $=3.2$ , Opposite=Height from sea level $(h)$

$\sin 25=\frac{opposite}{hypotenuse}\\\\\sin 25=\frac{h}{3.2}\\\\h=3.2\times \sin 25\\\\h=3.2\times 0.4226\\\\h=1.3524\approx 1.35\ miles$

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3 years ago

Read 2 more answers

Tom used twenty gallons of water to

oksano4ka [1.4K]

Answer:

y=20x + 40x

Step-by-step explanation:

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4 years ago

Read 2 more answers

You are designing the floor plan of a new house with dimensions of 30 x 50 ft. If each room must be at least 14 x 12 ft, how man

Anvisha [2.4K]

What you would do is 30x5 which is 1500 and 14x12 which is 168

Then you would just divide 1500/168 and get (at most) 8

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3 years ago

Hey there can you please help me posted picture of question

mash [69]

We can use quadratic formula to determine the roots of the given quadratic equation.

The quadratic formula is:

$x= \frac{-b+- \sqrt{ b^{2} -4ac} }{2a}$

b = coefficient of x term = 12
a = coefficient of squared term = 4
c = constant term = 9

Using the values, we get:

$x= \frac{-12+- \sqrt{144-4(4)(9)} }{2(4)} \\ \\ 
x= \frac{-12+-0}{8} \\ \\ 
x= \frac{-3}{2}$

So, the correct answer to this question is option B

5 0

3 years ago

Convert 0.8 m/s to km/hplss show your work​

Convert 0.8 m/s to km/hplss show your work