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Lorico [155]
3 years ago
6

If 2x + 3y = 15 and xy = 6, find 4x2 + 9y2Need a quick help for my homework please help.​

Mathematics
1 answer:
Svetllana [295]3 years ago
6 0

Answer:

2 (4x+9y)

Step-by-step explanation:

Simplified:

8x+18y

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If Bill
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Answer:

$3,623.84 Exact answer without rounding | $3,623.85 ~ (Approximent Answer with rounding.)

Step-by-step explanation:

Compound Interest Has a Specific Formula:

This case is Exponential Growth.

Formula: y= ab^x

You need to set up the equation.

First we need to define the rate of growth meaning what do you have to do for the 6.5%.

You need to do 100% + 6.5% = 106.5%

You need to convert the percent to a decimal which will be 1.065


Now we need to start plugging things into our formula to solve.

Your initial Starting amount was $3000

So you need to have y=3000(b)^x

We now know that the rate of growth is 1.065 so the b would be 1.065

y=3000(1.065)^x

Our power to x is our 3.5 years.

Our Equation now:

y=3000(1.065)^3

Now you need to use a calculator to do this due to the amount of decimals and digits.

Remember pemdas when doing this!!!

The answer should result to $3,623.84 but if rounded then: $3,623.85

4 0
2 years ago
A follow-up study will be conducted with a sample of 20 people from the 300 people who responded yes (support) and no (do not su
mafiozo [28]

Answer:

x = 20 * s / 300

Step-by-step explanation:

In this case, it is solved by means of a rule of three, that is, we know that 20 of 300 answered yes, but in the case of the strata sample, since it is a value that is not mentioned in the problem, we will assume it as " s "and the people who were selected as" x ". would:

20 x

300 s

Therefore, x:

x = 20 * s / 300

and thus they would give us the number of people that would be selected.

For example, if "s" were 240, it would be:

x = 20 * 240/300

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3 years ago
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Meeeeeee lol!!!!!!!!!!!
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The amount of money invested in a retirement fund is an example of which of the following?
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Answer:

the answer is A

okay that it have a nice day

4 0
3 years ago
Can someone answer it please I really need help please I need it right now I was so frustrating please help and please show work
Eduardwww [97]

Answer:

  2 1/4 yards above sea level

Step-by-step explanation:

The midpoint elevation is the average of the endpoint elevations, their sum divided by 2. When elevation is below sea level, it is represented by a negative number.

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