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s344n2d4d5 [400]
4 years ago
6

Please help with this maths question

Mathematics
1 answer:
V125BC [204]4 years ago
3 0
It’s ok you got this :)
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How to calculate the three averages for the given data?
vichka [17]

Answer:

Add the numbers together and divide by the number of numbers. (The sum of values divided by the number of values). Arrange the numbers in order, find the middle number. (The middle value when the values are ranked).

4 0
2 years ago
If parallelogram ABCD was reflected over the y-axis, reflected over the x-axis,and rotated 180°, where would point A' lie?
ValentinkaMS [17]

Point A is (-4,1) .Point A is reflected along y axis  so y will remain same and x coordinate will have opposite sign .The reflected point A' ---(4,1) .The point is now reflected along x axis so its x ordinate will remain same and y will be at an equal distance from x axis The new reflected point is A" (4,-1) .The point is now rotated 180 degrees the x and y coordinate changes sign so the rotated final point is  A"'( -4,1).

6 0
3 years ago
Read 2 more answers
Solve for x. Round your answer to the nearest tenth if necessary.
diamong [38]

Answer:

x ≈ 17.5

Step-by-step explanation:

using Pythagoras' identity in the right triangle.

the square on the hypotenuse is equal to the sum of the squares on the other 2 sides , that is

x² = 9² + 15² = 81 + 225 = 306 ( take square root of both sides )

x = \sqrt{306} ≈ 17.5 ( to the nearest tenth )

6 0
2 years ago
Read 2 more answers
Give me the answer for question 3 please
Paha777 [63]
Try calculating each of these yourself: 

<span>First, 34(58 + 9) = 34(67) = 2278 </span>

<span>A. 34 x 67 = 2278 </span>

<span>B. 58(34 + 9) = 58(43) = 2494 </span>

<span>C. 34 x 58 + 34 x 9 = 34 x (58 + 9) = 34 * 67 = 2278 </span>

<span>D. 1,972 </span>

<span>So the answer is B and D are not equal to 34(58 + 9).

Hope I helped! If you need anything else just ask!</span>
7 0
4 years ago
Find the sum of the interior angle measures of a convex 21-gon
Advocard [28]

Answer:

  3420°

Step-by-step explanation:

The sum of angle measures of an n-gon is ...

  angle total = (n-2)×180°

For n = 21, the angle total is ...

  21-gon total = (21 -2)×180° = 3420°

7 0
4 years ago
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