2 pounds = $5
1 pound = $5 / 2 = $2.50
The answer is $2.50 per pound
10x^3-8x^2-12x^2(x)
10x^3-8x^2-12x^3
-2x^3-8x^2
=-2x^2(x+4)
It should be -3x but i could be wrong
Answer:
Step-by-step explanation:
sin x=a+b
cos x=a-b
sin²x+cos²x=(a+b)²+(a-b)²=2a²+2b²
or 2a²+2b²=1
a²+b²=1/2 which is constant for all values of x
(ii)
155/(2 1/2)=62
Sam drives at 62 m/h
62*4=248
Sam would drive 248 miles in 4 hours.
Hope this helps :)