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murzikaleks [220]
1 year ago
14

1-5.

Mathematics
1 answer:
Irina18 [472]1 year ago
4 0
Can you possibly upload a picture?
this formatting is very confusing
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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
2 years ago
20 points!! Need help with 8
hjlf

the answer is D x= x 5 because it make sense

4 0
3 years ago
Please help with two math questions!!
Brrunno [24]
Their is no questions 
6 0
2 years ago
Read 2 more answers
I need help on the top one hellppp it’s due today
Digiron [165]

Answer:

.666666... lph, 22 lawns

Step-by-step explanation:

6/9 to get lawns per hour.

Take that fraction times 33 to get lawns in 33 hours.

7 0
2 years ago
In this triangle, what is the value of x?
nalin [4]

Answer: x=56.5\ km

Step-by-step explanation:

Given the right triangle in the image, you need to remember the following identity:

cos\alpha=\frac{adjacent}{hypotenuse}

Observe the triangle. You can identify that:

\alpha=28\°\\adjacent=x\\hypotenuse=64

Then, knowing these values, you can substitute them into  cos\alpha=\frac{adjacent}{hypotenuse}:

cos(28\°)=\frac{x}{64}

Finally, you have to solve for "x".

Therefore, the value of "x" rounded to the nearest tenth is:

64*cos(28\°)=x\\x=56.5\ km

8 0
3 years ago
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