If the question had asked what is 9/9 closer to you would say 1. When you increase the numerator by one digit go higher than 1.
10/9 = 1.11111111
so it is closer to 1 than to anything else
Answer: B
Step-by-step explanation:
Multiply everything in the bracket by -2 and combine like terms
Answer:
78.54in²
Step-by-step explanation:
Answer:
6.5 s
Step-by-step explanation:
The equation provided provides us with the height of the canonball at any time t. When the ball hits the ground, the height of the ball above the ground is zero.
Therefore
h(t)=-4.9t^2+30.5t+9.4 = 0
We then solve for t. Seeing as this is a quadratic equation, we can use the quadratic formula:
The quadratic formula gives two answers, a positive one and a negative one. The positive one is after time zero and the negative one is before time zero. We are interested in the one after time zero (time zero being the time when the canon is fired)
if leg a is the missing side, then transform the equation to the form when a is on one side, and take a square root: a = √(c² - b²)
if leg b is unknown, then. b = √(c² - a²)
for hypotenuse c missing, the formula is. c = √(a² + b²)
use a right triangle calculator :)
or those math apps on yo phone (photomath )