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Gelneren [198K]
1 year ago
8

If x= -2 and y=√12 then 2(3x³+ 2y²)=

Mathematics
1 answer:
Illusion [34]1 year ago
7 0

Answer:

Step-by-step explanation:

Begin by filling in x as -2 and y as √12 in the given expression:

2(3(-2)^3+2(\sqrt{12})^2).  Work inside the parenthesis first and deal with those exponents:

(-2)³ is the same as (-2)(-2)(-2) which is -8;

(√12)² is the same as (√12)(√12) which is √144 which is 12.

Filling those simplifications in:

2(3(-8)+2(12))=2(-24+24)=2(0)=0

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0.000126. Hint:There are 60 seconds in a minute and 60 minutes in an hour. Therefore on multiplying all the values we get the number of seconds in an hour. Hence we can divide one second by the total number of seconds in an hour to get the desired decimal value.

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If the MAD for a forecast is 3.2, we can say that a. The forecast is 3.2 units too high on the average b. The forecast is 3.2 un
Rudik [331]

Answer:

The forecast is accurate within plus or minus 3.2 units

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Mean Absolute Deviation is a statistical measure of dispersion from forecast. It measures accuracy level of predicted forecast, by averaging the difference between absolute value of each error from forecasted value.

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a movie ticket used to cost $4.25 back in 1990. inflation exist because products increase in value over time. the inflation rate
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In the year 1998, movie tickets will be greater than $5.50 as determined by solving the equation y=4.25[(1.035)^x].

What is an equation?

  • Math can be used to analyze an equation or a set of equations.
  • An equation is a sentence that maintains the equivalence of two expressions. Most of the time, it is easy to solve the arithmetic equations given in an exact manner.
  • While perfect solutions can occasionally be found, it is more typical to find approaches that are just as accurate. It speaks to the particular guidelines for quadratic mathematical equations.

A movie ticket cost $4.25 in 1990.

The inflation rate is about 3.5%

Rate increased ,r=100%+3.5%=103.5%=1.035

equation generated is,

y=4.25[(1.035)^x]

Solving the equation for each year, we get the following data:

Tabulating the data

Year         cost

1990         4.25

1991          ....

....              ....

1998          5.5964~ 5.6

In the year 1998, the will be greater than $5.50.

To learn more about equations visit:

brainly.com/question/17145398

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6 0
1 year ago
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