Erin's office had already recycled 1 kilogram this year before starting the new recycling plan, and the new plan will have the office recycling 1 kilogram of paper each week. How many weeks will it take Erin's office to recycle a total of 10 kilograms of paper?

answer: .64

step-by-step explanation

set up the formula for standard deviation for this set of numbers, then simplify

lockers 1, 4, 9, 16, 25, 40, and 49 are open

i ran through it by the other answer is wrong

the workers who do no drive has no reasonable reason to buy gasoline due to they don't have anything to use it for

the solution of the equation is 2.23 ⇒ answer b

step-by-step explanation:

* lets revise the meaning of exponential function

- the form of the exponential function is y = ab^x, where a ≠ 0, b > 0 ,  

  b ≠ 1, and x is any real number

- it has a constant base b

- it has a variable exponent x

- to solve an exponential equation, take the log or ln of both sides,  

  and solve for the variable

* lets solve the problem

∵

- the base is 7 and the exponent is x

- insert ㏑ in both sides

∴

- use the rule

∴ x ㏑(7) = ㏑(77)

- to find x divide both sides by ㏑(7)

∴

* the solution of the equation is 2.23 to the nearest 2 decimal places