Answer:
x=√-y^2-10y
Step-by-step explanation:
step 1:add y^-2 to both sides
x^2+(y+5)^2=25
x^2+y^2+10y+25+-y^2=25+-y^2
x^2+10y+25=-y^2+25
Step 2:add -10y to both sides
x^2+10y+25-10y=-y^2+25+-10y
x^2+25=-y^2-10y+25
step 3:add -25 to both sides
x^2+25-25=y^2-10y+25-25
x^2=-y^2-10y
step 4:take square root
x=√−y^2−10y
The mean is also known as the average. Take the sum of all the numbers, and divide it by the amount of numbers you added together. Like this:
1+3+5+5+5+7+8+8=42
Now divide by 8 because there are 8 numbers.
42/8= 5.25.
Your average or mean is 5.25 or 5 1/4
Answer:
132 history textbooks, 87 chemistry textbooks
Step-by-step explanation:
![C + H = 219\\C = H - 45\\](https://tex.z-dn.net/?f=C%20%2B%20H%20%3D%20219%5C%5CC%20%3D%20H%20-%2045%5C%5C)
![1. H - 45 + H = 219\\2. 2H = 264\\3. H = 132](https://tex.z-dn.net/?f=1.%20H%20-%2045%20%2B%20H%20%3D%20219%5C%5C2.%202H%20%3D%20264%5C%5C3.%20H%20%3D%20132)
H = 132,
C = 132 - 45 = 87
Well if the maximum height is 200 feet and it travels at 96 feet per second. It would take around 2.08 seconds for the ball to reach 200 feet