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alekssr [168]
2 years ago
13

Maly is going to throw a fair coin 70 times. Write down an estimate for the number of times the coin will land on head

Mathematics
1 answer:
ElenaW [278]2 years ago
8 0

Answer:

there are 2 sides for a coin

so divide 70/2 = 35

estimate for heads - 35

Step-by-step explanation:

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1 plus 1 equals to: Will only give stuff to terrypan
Anna007 [38]

Answer:

2

Step-by-step explanation:

Thanks why do you know me

7 0
2 years ago
State of the triangles in each pair of similar. If so, State how you know they are similar and complete the similarity statement
Vinil7 [7]

Answer:

  b.  not similar

Step-by-step explanation:

The given sides* have the ratio 30:39 = 10:13 in one triangle and the ratio 20:27 = 10:13.5 in the other triangle. Since these ratios are different, the triangles cannot be similar.

____

* These are the sides bracketing the vertical angles at T. If the triangles were similar, the three sides would have to have the ratios 10 : 13 : 13.5.

However, the geometry shown would require that the angle opposite side 13.5 in one triangle have the same measure as the angle opposite side 13 in the other triangle. That is not possible, so it is not possible for these triangles to be similar.

6 0
3 years ago
Please help me find BD
Tanzania [10]

9514 1404 393

Answer:

  14 units

Step-by-step explanation:

The angle bisector divides the sides proportionally, so you have ...

  (x+4)/8 = (2x+1)/12

  3(x +4) = 2(2x +1) . . . . . . multiply by 24

  3x +12 = 4x +2 . . . . . . . . eliminate parentheses

  10 = x . . . . . . . . . . . subtract (3x+2)

Then BD = x+4 = 10 +4.

The length of BD is 14 units.

_____

<em>Additional comment</em>

The "triangle" cannot exist, as the side lengths are shown as 8, 12, and 35. The long side is too long. Nice math; bad geometry.

8 0
2 years ago
1 divided by 9/13 =<br><br>1 2/5 divided by 1 13/15 = <br><br>1 2/3 x 2 1/10 = <br>help
Allisa [31]

Answer:1 divided by 9/13=1.4,1 2/5 divided by 1 13/15=13/2,1 2/3 x 2 1/10=1/1

Step-by-step explanation:

5 0
3 years ago
I need help with what is 0.09 1/10th of? I would like some one to tell me how I calculate this so I may use it for future math p
Gemiola [76]
One tenth of 90. Because regular 9 is one tenth of 90, so decimal 9 is one tenth of decimal 90. Hope you understand ha ha ^_^ 
5 0
3 years ago
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