Answer:
<h3>after 2 secs</h3>
Step-by-step explanation:
The paths crossed at when the height are equal i.e when f(x) = g(x)
Given
f(x)=−x^2+2x+4
g(x) = 2x
IF f(x) = g(x), then;
−x^2+2x+4 = 2x
−x^2+2x+4 - 2x = 0
−x^2+4 = 0
-x^2 = -4
x^2 = 4
x = ±√4
x = 2 and -2
Time cannot be negative
Hence x = 2
The path crossed after 2 seconds
Answer:
8(3x+8y)
Step-by-step explanation:
Answer:
(X+4)(x-11)
X= -4
X = 11
Step-by-step explanation:
x^2-7x - 34=10
x^2 -7x -34 -10 =0
x^2 - 7x - 44 = 0
The number in the middle is -7 and the other number is -44
Find two numbers that when multiply = -44 and when added= -7
4 * -11 = -44 and 4 + -11 = -7
Answer: (x+4)(x-11)
x + 4 = 0
x = -4 and
x -11 = 0
x = 11
Answer:
75,900 g
Step-by-step explanation:
m=d×v
(1.38g/cm^3) × (55,000)
Answer: The sample of the survey was 3000 teenagers
The population of the survey was teenagers across the state
Step-by-step explanation:
"3000 randomly selected teenagers"
"3000 randomly selected teenagers across the state"