URGENT PLEASE ANSWER THESE

Mathematics

1 answer:

Alex787 [66]1 year ago

4 0

The distance of the cruise liner from me 20 seconds later will be; 2600ft.

<h3>How far will the cruise liner be in 20 seconds?</h3>

a) Since, the speed of the liner is 30ft/sec, it follows that after 20secs, the liner would cover; (30×20)ft = 600ft more; and consequently, the distance is now; √(2000²+600²) = ft.

b) For the boat to be 2500 ft away given the speed 30ft per sec; Time taken = 2500/30 = 83.3seconds. Hence, the boat will be more than 2500 feets away after 2 minutes.

c) If the boat's distance is 2000ft from me; it follows that the distance covered is 10 seconds is; √(2000²-1500²) = 1322.9ft

Hence, the speed to attain this distance is; 1322.9/10 = 132.29ft/sec.

You might be interested in

7 in.<br> 5 in.<br> 7 in.<br> 5 in.<br> The perimeter?

lana66690 [7]

Answer:

The perimeter is:

Step-by-step explanation:

Perimeter is the outside frame of the area. Add the dimensions together to get your answer. Adding:

7+7= 14

5+5= 10

10+14= 24

:) Hope this helps have a wonderful day!

7 0

1 year ago

Read 2 more answers

I neeeeeeeeeedddddddddddd hhhhelpppppp

Bumek [7]

The step function is characteristic of the floor or ceiling functions, which map a real number to an integer. There's clearly a factor of 2, indicated by two units of y for every one unit of x.

The open and filled circles indicate, for example, f(1)=2, f(1.01)=4. That means we're rounding up, so we're using the ceiling function.

$f(x) = 2 \lceil x \rceil$