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cluponka [151]
3 years ago
15

Someone please help me!​

Mathematics
1 answer:
Natali5045456 [20]3 years ago
4 0

Answer:

number 3

Step-by-step explanation:

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What equation best models this data? (Use y to represent the population in millions, and t to represent the year, assuming that
lapo4ka [179]

Answer:

y = 2.31x + 309.35

Step-by-step explanation:

Whenever you are checking for a best fitting equation you want to check if it has a constant slope.  If it does then the relation is linear and super easy.

So, since the t values are increasing by the same amount you want to see if the y values are  too.  And they are, each population entry is increasing by 2.31, this is the slope.  

Also, keep in mind you can caluclate slope with the equation \frac{y_2-y_1}{x_2-x_1}  here x is replaced by t though.

Now, since we know it's linear and we know the slope we can find the equation with the formula  y - y1 = m(x - x1) where again, x is replaced by t and m is the slope 2.31

I am just going to use the first point.  so x1 = t1 = 0

y - 309.35 = 2.31(x-0)

y = 2.31x + 309.35

Let me know if there was something you didn't understand.  

5 0
3 years ago
The following were the recorded birth weights for babies born July 16, 2011: 8.1 lbs., 6.0 lbs., 4.7 lbs., 6.9 lbs., 5.6 lbs., 7
rodikova [14]
8.1 + 6.0 + 4.7 + 6.9 + 5.6 + 7.7 + 6.3 + 7.8 + 6.1 + 9.2 = 68.4/9 = 7.6
6 0
3 years ago
Which product is negative?
larisa [96]
B because the multiplication has different signs
6 0
3 years ago
Helppp its due nowwww
Irina-Kira [14]

Answer:

9 x^4 y^6

Step-by-step explanation:

Recall the Exponent Law:

a^m \times a^n = a^{m +n}

Solution:

3x^2y^3 \times 3x^2y^3 \\ ( 3 \times 3 )x^{2 +2} y^{3 +3} \\ 9 x^4 y^6

6 0
3 years ago
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15 dollars per hour

Step-by-step explanation:

She is constantly charging 15 per hour.

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3 years ago
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