Answer:
f(3) = -20
Step-by-step explanation:
To find the value of a function, substitute the number for the variable and do the arithmetic.
f(x) = -2x^2 +x -5 . . . . . . given
f(3) = -2(3^2) +(3) -5 . . . . function value for x = 3
f(3) = -2(9) +3 -5 = -18 +3 -5
f(3) = -20
576 I hope this help cause I did this two years ago so I'm a little rusty but I think this is correct
Answer:
£540
Step-by-step explanation:
I worked it out let me know if you want me to upload a picture of my workings
78
because 5 times 2 equals 10 so then u times 39 times 2 and get 78
6.5x10^7
count the decimal places over, with the first being zero