Answer:

Step-by-step explanation:
the answer is :- .

Answer:
The rate at which the distance from the plane to the station is increasing when it is 2 mi away from the station is 372 mi/h.
Step-by-step explanation:
Given information:
A plane flying horizontally at an altitude of "1" mi and a speed of "430" mi/h passes directly over a radar station.


We need to find the rate at which the distance from the plane to the station is increasing when it is 2 mi away from the station.

According to Pythagoras


.... (1)
Put z=1 and y=2, to find the value of x.




Taking square root both sides.

Differentiate equation (1) with respect to t.

Divide both sides by 2.

Put
, y=2,
in the above equation.

Divide both sides by 2.



Therefore the rate at which the distance from the plane to the station is increasing when it is 2 mi away from the station is 372 mi/h.
(a + 2b) • (a2 - 2ab - 4b2)
Answer:
$507.30
Step-by-step explanation:
-Given the monthly deposits are $425 and the interest rate is 3.5% for 30 years.
-The amount of the investment after 30 years is calculated as;

-Assuming Saul started saving at age 20, his investment term will be 40 yrs.
-His investment amount is thus:

#We subtract to find how much more he would have if he started saving at 20;

Hence, Saul would have $507.30 more had he started saving 10 years earlier.
Answer:
The missing digits are 3 and 1.
Step-by-step explanation:
6+3÷3-1=2
9÷3-1=2
3-1=2