15 + p = ?
I hope this helps :)
Answer:
4 hours = 14400 seconds.
Step-by-step explanation:
i) In 1 hour there are 60 minutes
ii) in 1 minute there are 60 seconds
iii) therefore 1 hour = 60 minutes
= 60
60 seconds
= 3600 seconds
iv) therefore to convert 4 hours to seconds we have to multiply the number of hours by 3600 seconds
therefore 4 hours = 4
3600 seconds = 14400 seconds.
F(x) = x-7
H(x)= 2x+3
F(H(x)) = (2x + 3) -7 = 2x - 4
Answer:
-(-3) ± √(-3)^2 - 4(2)(-5) / 2(2) (the last choice).
Step-by-step explanation:
Im ignoring the 2^2 in the equation
The equation transforms to
2x^2 - 3x - 5 = 0 (standard form)
So x = -(-3) ± √(-3)^2 - 4(2)(-5) / 2(2)
0.24 is an even number....so 2 will be a factor
2x = 0.24
x = 0.24 / 2
x = 0.12
so 2 factors would be 2 and 0.12.....because 2 * 0.12 = 0.24