This Question:... 7 of 14 (3 complete) This Test: 10 Question Help Karl and Leonard want to make perfume. In order to get the right balance of ingredients for their tastes they bought 3 ounces of rose oil at $4.19 per ounce, 5 ounces of ginger essence for $3.18 per ounce, and 3 ounces of black currant essence for $4.36 per ounce. Determine the cost per ounce of the perfume. The cost per ounce of the perfume is $ (Round to the nearest cent.)​

step-by-step explanation:

1. the cylinder is a. 54

2.   a.108 /

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

3100

step-by-step explanation: