(y + z)³
in expanded form: (y + z) (y + z) (y + z)
y(y + z) + z(y + z) 1st and 2nd set
y² + yz + yz + z² product of 1st and 2nd set
(y² + 2yz + z²)(y + z) multiply with 3rd set
y(y² + 2yz + z²) + z(y² + 2yz + z²)
y³ + 2y²z + yz² + y²z + 2yz² + z³
y³ + 2y²z + y²z + yz² + 2yz² + z³ Group like terms.
y³ + 3y²z + 3yz² + z³ Product of 1st, 2nd, and 3rd set ...2nd CHOICE
So, 3 workers are to 28 hours and x is to 12 hours. That can be written as
3 28
--- --
x 12
Multiply them to get 94 over 12. 84 divided by 12 is 7.
Answer:
(2,-1)
Step-by-step explanation:
Rewrite in vertex form
y = -1/4(x-2)^2-1
Answer: 12
Step-by-step explanation:
Would need the net to answer. but to find the answer you need to find the slant height of the square pyramid, the slant height is the hypotenuse of the right triangle formed by the height and half the base length. Use the pythagorean Theorem
