Answer:
6 .74 seconds
Step-by-step explanation:
The height of the ball is given by the equation:
When the ball hit the ground, then;
We discard x=-0.74 since time is not negative.
Therefore the ball hit the ground after 6.74 seconds.
Answer:
Whats the answer choices?
Step-by-step explanation:
Answer:
-6
Step-by-step explanation:
Hello!
Since we are finding f(-1) we put -1 in for x
2(-1)^2 + 8(-1)
Follow PEMDAS
2 * 1 + 8(-1)
2 * 1 + -8
2 + -8 = -6
The answer is -6
Hope this helps!
Answer:
see explanation
Step-by-step explanation:
If AB is a tangent then ∠ ABC = 90° and Δ ABC is right
Using the converse of Pythagoras' identity
If the square of the longest side is equal to the sum of the squares on the other 2 sides.
15 is the longest side and 15² = 225
9² + 12² = 81 + 144 = 225
Thus Δ ABC is a right triangle at B
Thus AB is a tangent to the circle at B
Answer:
Nuestra masa ejerce una fuerza de 931,665 newtons por efecto de la gravedad terrestre.
Step-by-step explanation:
Nuestro peso puede determinarse mediante la definición de peso (
), medido en newtons, representado por la siguiente fórmula:
(1)
Where:
- Masa, medida en kilogramos.
- Aceleración gravitacional, medida en metros por segundo cuadrado.
Si sabemos que 
y 
, entonces la fuerza que ejerce sobre nuestra masa es:
Nuestra masa ejerce una fuerza de 931,665 newtons por efecto de la gravedad terrestre.
