geno3141

What are our choices?

And, do you mean -59, or -5.9?

What is the question?

You have two equations:

Equation #1:  x(t) = v0·cos(θ)     gives the x-value, which is a horizontal value

Equation #2:  y(t) =v0·sin(θ) - 16t²  gives the y-value, which is a vertical value

Question 1)  says that the height is 4.7; this is a y-value, specifically y(1).

     It also gives you the time, t = 1, and gives you the initial velocity, v0 = 25.  

     You now have the equation:  y(1)  =  4.7  =  25sin(θ) - 16(1)²  

Question 2)  Solve the equation from question 1, for θ.

Question 3)  You are again looking for height:  use y(t) =v0·sin(θ) - 16t²; entering, .5 for t, 25 for v0, and your answer for question 2 for θ. Solve for y(.5).

Question 4)  I'm assuming, possibly incorrectly, that they want the x-value after 1 second. Use the first equation, substituting the values for v0 and θ.

Question 5)  Redo question 2, but using 5.2 for y(t), 1 for t, and 28 for v0.

Question 6) Redo question 3, but using 28 for vo, .5 for t, and you answer for question 5 for θ.

Question 7)  Redo question 4, for the numbers for Jon.

Question 8) Redo question 3 using the new number.

If you need more help, repost where your questions are.

If you want it factored; find the largest number that divides into both 24 and 36.

12 is the largest number hat divides into both 24 and 36.

Factor out the 12:  12(2x + 3)

To quote someone more knowledgeable about this than I:  "42". 

2/3 x 6  =  2/3 x 6/1  =  12/3  =  4

Those are hilarious! 

Thanks!!

Geno

Te calculator at this site can solve this for you.

The area of a circle can be found by using this formula:  Area  =  π · radius².

An alternate formula is:  Area  =  π · diameter² / 4.