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hammer [34]
2 years ago
15

Please help, lots of points offered. No scam answers.

Mathematics
2 answers:
Alchen [17]2 years ago
5 0

Answer: 11

Step-by-step explanation: y^{2} = 121, y = \sqrt{121}, y = 11

ahrayia [7]2 years ago
3 0

Answer:

D

Step-by-step explanation:

11 *11 is 121

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The linearized regression equation for an exponential data set is log ŷ = 0.14x + 0.4, where x is the number of years and y is t
djyliett [7]

Option C: 316 is the predicted population when x=15

Explanation:

The regression equation for an exponential data is \log y=0.14x+0.4

Where x is the number of years and

y is the population

We need to determine the predicted population when x=15

The population x can be determined by substituting x=15 in the equation \log y=0.14x+0.4

Thus, we have,

\log y=0.14(15)+0.4

\log y=2.1+0.4

\log y=2.5

Using the logarithmic definition \log _{a}(b)=c then b=a^{c}

\log _{10}(y)=2.5 \Rightarrow y=10^{2.5}

y=316.22776 \ldots

Rounding off to the nearest whole number, we get,

y=316

Thus, the predicted population when x=15 is 316

Hence, Option C is the correct answer.

7 0
3 years ago
How do you solve 2x+4=7
marissa [1.9K]
2x+4=7  subtract 4 from both sides

2x=3  divide both sides by 2

x=3/2

x=1.5


8 0
3 years ago
An n-sided polygon has two of its exterior angles measuring 30° and 42°.The remaining exterior angles all measure 16° each. Find
finlep [7]

Answer:

n = 20.

Step-by-step explanation:

The external angles of a polygon add up to 360 degrees. So:

30 + 42 + 16(n - 2)   = 360   where n is the number of sides of the polygon.

16n + 30 + 42 - 32 = 360

16n  + 40 = 360

16n = 320

n = 20.

5 0
3 years ago
Which function below BEST describes the height of the ball after the xth bounce?
otez555 [7]
D

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2 years ago
What is 2.5/10 (fraction) simplified?
sladkih [1.3K]

Answer:

-1

—— = -0.25000

 4            

Step-by-step explanation:

5 0
3 years ago
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