Answer:
65 m
Step-by-step explanation:
u = 6 m/s
v = 20 m/s
t = 5 s
15 * 28 = 420. Should be your answer.
Answer:
5.04
Step-by-step explanation:
Answer: $10.00
Explanation: round 6.2 down to 6, and round $56.00 up to $60.00 and then see which answer choice fits. 10 multiplied by 6 is 60 which would mean about 1 pound of pecans costs $10.00
Answer:
4x^2 +9xy +6y^2
Step-by-step explanation:
Combine like terms. I find it useful to factor out the variable part of the expression so I can see what coefficients are being combined.
7x^2+5xy-3y^2 - (2x^2+3xy-5y^2 + x^2-7xy-4y^2)
= (7 -2 -1)x^2 +(5 -3+7)xy +(-3 +5 +4)y^2
= 4x^2 +9xy +6y^2
