Tim wrote y = -2(x + 5)2 - 19 in standard form as y = 2x2 + 20x + 69. Find his error.
The standard form of y =-2(x + 5)2 – 19 is y = 4x + y = - 39
Tim multiplied by
instead of

7

step-by-step explanation:

"a" determine whether sage found the correct quotient. show your work

step-by-step explanation:

ending amount = beginning amount / (2^n)

where "n" = number of half-lives (or elapsed time / half-life)

ending amount = 50 mg / (2 ^10 / 5.3)

ending amount = 50 mg / (2 ^ 1.8867924528)

ending amount = 50 m / 3.6981210597

ending amount = 13.5203794557 mg

or about 13.5 mg remain

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