Answer:

Step-by-step explanation:
Given equation is:-

To find
we need to substitute 3 in place of x in the above equation i.e. 
After substituting 3 in place of x we get,



Therefore for function 
Answer:
D
Step-by-step explanation:
To factor a quadratic you need to think about what adds up to the b coefficient (the number in front of b) and multiplies to the constant. 3 and 4 do these, but you also know that you have -7 instead of positive 7. A negative times a negative is equal to a positive, which you can do (x-3)(x-4) to equal your quadratic trinomial.
The planes will pass each other in 1.14 hours.
Why?
To solve the problem, we must remember that since both planes are heading toward each other, the speed to the calculations will be their combined speeds.
The speed will be:

Now, calculating the time, we have:

Hence, the planes will pass each other in 1.14 hours.
Have a nice day!
Answer: D) Hypotenuse = 17 m, Adjacent = 15 m, Opposite = 8 m