Answer:
12
Step-by-step explanation:
= 144
x*x = 144
x = 12
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Answer:
acute angle is less than 90, so we have 4 acute angles between the inner lines. Also we have 3 more acute angles combining the above angles. So the total will be 7 acute angles.Nov 9, 2016
Answer: 
Step-by-step explanation:
In order to solve this exercise it is important to remember that the "Repeated addition" is about adding equal groups of numbers.
Therefore, you can solve a mulitplication using the Repeated addition by repeat the same number "n" times in order to find the result..
In this case, you have the following multiplication given in the exercise:

You can observe that the number 34 is multiplied by 4. This indicates that the result is four times 34.
Then, based on the explained at the beginning of this explanation, you can conclude that you can also solve the given multiplication by repeating the number 34 four times and then adding the groups.
Therefore, you get:

Answer: The ratio 6:8 represents the 6 tiger shark teeth to the 8 sand shark teeth. The ration 4:18 represents the 4 remaining bull shark teeth to the collection of 18 teeth Christian collected.
Step-by-step explanation:
180-127 = 53
so the answer would be D. 53