Ask question

Ask question

All categories

3 years ago

7

A plane flies at an average speed of 300 miles per hour the expreesion 300t gives the distance traveled by the plane in t hours

find the distance traveled by the plane in 8 hours

1 answer:

irina [24]3 years ago

5 0

300(t) = ?
300(8) = 2,400 miles were travelled in 8 hours

You might be interested in

2. What was the purpose of the Civil Defense system?

galina1969 [7]

Answer: civil protection is an effort to protect the citizens of a state (generally non-combatants) from military attacks and natural disasters. It uses the principles of emergency operations: prevention, mitigation, preparation, response, or emergency evacuation and recovery.

Step-by-step explanation:

8 0

2 years ago

Find the derivative of x^2+6x+9 at the point (2,6).

Pachacha [2.7K]

The derivative of the function is 2x+6.
At the particular point (2,6), plug in the x coordinate for x.
2(2)+6 = 10

Hope this helps :)

4 0

3 years ago

A scientist has 100 milligrams of a radioactive element. The amount of radioactive element remaining after t days can be determi

grandymaker [24]

The mass of the first shipment at time t is
$m_{1}=100( \frac{1}{2} )^{ \frac{t}{10}}$

The mass of the second shipment at time t is
$m_{2}=100( \frac{1}{2} )^{ \frac{t-3}{10} }$

At time t, the ratio of m₁ to m₂ is
$\frac{m_{1}}{m_{2}} = \frac{100}{100}. \frac{(1/2)^{t/10}}{(1/2)^{(t-3)/10}} \\ = \frac{(1/2)^{t/10}}{(1/2)^{t/10}}. \frac{1}{(1/2)^{-3/10}} \\ = (1/2)^{3/10} \\ = 0.8123$

Therefore as a percentage,
$\frac{m_{1}}{m_{2}} =100*0.8123 = 81.23 \%$

Answer: B. 81.2%

4 0

3 years ago

If your going 16 mph and you drive 10m and a half how many hours did it take

makkiz [27]

It took about 0.66 hour, which is basically 40 minutes.

8 0

3 years ago

Read 2 more answers

Please Help! I need an explanation for how to do this... Step-by-step directions would be great!

spin [16.1K]

$\dfrac{8x^2y^2-4xy^2}{4xy}=\\
\dfrac{8x^2y^2}{4xy}-\dfrac{4xy^2}{4xy}=\\
2xy-y
$

8 0

2 years ago