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tigry1 [53]
3 years ago
12

3. 27x3+8 Type(s): _________

Mathematics
1 answer:
Novosadov [1.4K]3 years ago
6 0
27 times 3= 81 then add 9 which then equals 89
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How do I workout/find the unknown angles please
Cerrena [4.2K]

Answer: x = 135 degrees and y = 225 degrees.

Step-by-step explanation: To solve this problem we first use the equation (n-2)*180 [n being the number of sides] to find the sum of interior angles in the figure. We plug the values in: (8-2)*180 = 6*180 degrees = 1080 degrees. We divide this by 8 to get the measure of an interior angle: 1080 degrees/8 = 135 degrees. Since all the interior angles of a regular polygon are congruent, we can say that angle x + angle y = 360 degrees. Thus subtract x degrees from 360 degrees to get y: 360 degrees - 135 degrees = 225 degrees. Therefore, x = 135 degrees and y = 225 degrees.

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2 years ago
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Akimi4 [234]

Answer:

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Step-by-step explanation:

→ As it is a shaded circle you know it ≤ or ≥

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2 years ago
To create a mathematical model of several data points, you identify the R2 values of different regression types. You find a line
ehidna [41]

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a. a power model hope this helps


7 0
3 years ago
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irina [24]

Answer:

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Step-by-step explanation:

7 0
3 years ago
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Different hotels in a certain area are randomly selected, and their ratings and prices were obtained online. Using technology, w
Savatey [412]

Answer:

a. y= 130x + 350 + \epsilon

b. The symbol y-bar represents the average price of hotels in the area

Step-by-step explanation:

a. The regression line equation is given by:

y=\alpha x + \beta + \epsilon

Where Alpha represents the slope, Beta represents the intercept with the Y axis, and epsilon represents the random component of the model. Thus,

\alpha = 130 y \beta = 350  Obtaining:

y= 130x + 350 + \epsilon.

b.  In a simple linear regression model the value of y-bar represents the average of all values ​​of y observed. Thus, since y represents the prices of the hotels, then y-bar is the average price of hotels in the area.

5 0
3 years ago
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