<span>So ball A (100 feet) will hit the ground after 2.49 seconds and ball B (75 feet) after 3.15 seconds</span>
Answer:
x = -14
Step-by-step explanation:
x/4 = -3.5
Multiply both sides by 4:
x/4*4 = -3.5 * 4
x = -14
The circle equation is in the format (x – h)² + (y – k)² = r², with the center being at the point (h, k) and the radius being "r".
QUESTION 11.
Equation x²+y²+10x-14y-7 =0 can be rewritten as: x²+10x+25 + y² -14y + 49 -7 - 25 - 49=0
It can be factories as (x + 5)² + (y – 7)² = 9²
Therefore the radius equals 9 and the center is (-5,7)
QUESTION 12.
From equation (x + 4)² + y² = 121
The radius equals √121 = 11 and the center is (-4,0)
QUESTION 13.
As there are missing information in the question, I can't assist. However, you can use the general circle equation (x – h)² + (y – k)² = r² to solve the question.
Finally equations 14 & 15 aren't linear.
Hope that helps you :)
For number 14 she could fold the string in fours and for 13 it is 9
1. -34
2. x= 8; y= 3.(and 3 repeating)
