2 years ago

Welppp fastttt!!!!!!!!!!!!!!!!!!

Mathematics

2 answers:

Romashka [77]2 years ago

7 0

Answer: B

Step-by-step explanation:

Grade must be greater than or equal to 88

skelet666 [1.2K]2 years ago

5 0

Answer:

The answer for this is B

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How do I find the answer to 10=7-m

andrey2020 [161]

Answer:

M=-3

Step-by-step explanation:

10=7-m

Subtract 7 from both sides

3=-m

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3 years ago

Ruth has 6 chores to do. If each chore does not depend on the others, in how many different orders could she do the chores?

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3 years ago

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2 years ago

The rate of U.S. per capita sales of bottled water for the period 2007–2014 could be approximated by s(t) = 0.25t2 ? t + 29 gall

julsineya [31]

Answer:

117 gallons

Step-by-step explanation:

The expression that describes the rate of U.S. per capita sales of bottled water for the period 2007–2014 is:

$s(t) = 0.25t^2-t+29$

Since t=0 at 2007. At 2009 and 2013, t is:

$t_1=2009-2007 = 2\\t_2=2013-2007 = 6$

The definite integral of the expression from t=2 to t=6 is:

$s(t) = 0.25t^2-t+29\\\int\limits^6_2 {s(t)} \, dt= \int\limits^6_2 {(0.25t^2-t+29)} \, dt\\\int\limits^6_2 {s(t)} \,dt= (\frac{t^3}{12} -\frac{t^2}{2}+29t +c)|^6_2 \\S(6) -S(2) = (\frac{6^3}{12} -\frac{6^2}{2}+29*6 +c) - (\frac{2^3}{12} -\frac{2^2}{2}+29*2 +c)\\S(6) -S(2) = 117.333\ gallons$

Rounded to the nearest gallon, the estimated total U.S. per capita sales of bottled water from the start of 2009 to the start of 2013 is 117 gallons.

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2 years ago