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belka [17]
2 years ago
7

Please help me I’m not sure if I’m right lol :)!!!!

Mathematics
2 answers:
wlad13 [49]2 years ago
8 0

Answer:

You are correct! The answer is 4775.94 in^2

Step-by-step explanation:

πr^2 or π(39)^2

iVinArrow [24]2 years ago
3 0

Answer:

You are correct :)

Step-by-step explanation:

Area of a circle = π * r2

R = 39

So 39 squared is 1521.

1521 times pi is 4775.94

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Find the mean absolute<br> deviation of the set of data.<br> 4, 5, 8, 8, 10 (I also need on this)
Klio2033 [76]

Answer:

MAD = 0

Step-by-step explanation:

When I calculated this by hand I got 0. To find the MAD:

1. You first need to find the mean of the numbers.

4 + 5 + 8 + 8 + 10 = 35

35/5 = 7

the mean value = 7

2. Then you must find the absolute value of the difference between each data value and the mean: |data value – mean|

(4 - 7) = -3

(5 - 7) = -2

(8 - 7) = 1

(8 - 7) = 1

(10 - 7) = 3

3. Add the difference values up

(-3) + (-2) + 1 + 1 +3 = 0

4. Divide the sum of the absolute values of the differences by the number of data values.

0/5 = 0

3 0
3 years ago
Complete the table below to find solutions to the linear equation 4x + y = -40.
Pepsi [2]

Answer:

(1,-44), (2,-48),(3,-52).......

Step-by-step explanation:

4(1)+y=-40

4+y=-40

y=-40-4

y=-44

(1,-44)

.

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4 0
2 years ago
Which system of equations does this graph represent?
jeyben [28]

Answer:

1

Step-by-step explanation:

First, we can find the equation of the parabola. The standard form of a parabola is ax^2 + bx + c,

where c is the y-intercept. The y-intercept on the graph is -5, and every option starts with x^2, so the equation must be x^2 - 5. This rules out options 3 and 4.

Next, we can find the equation of the line. The options are all given in slope-intercept form: y = mx + b, where b is the y-intercept. The y-intercept on the graph is 1, and option 1 has 1 in the place of b. Therefore, option 1 is the answer.

7 0
2 years ago
Draw a picture to show how to find12+37
Karolina [17]
So i drew 12 circles and 37 circles
And i got 49 total:D 
i hope this helps and sorry that the pic is wierd:(


7 0
3 years ago
What is the solution set of the compound inequality 3.5x - 10&gt; -3 and 8x -9 &lt;39
Eva8 [605]
I need to answer two questions in order to ask a question. sorry that i’m stupid and have no idea how to do this
5 0
3 years ago
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