In order to solve the equation solve for the area of the square and then the area of each of the triangles. For the first one the squares area is 256 while the triangles area is 136. Because there is four triangles multiply 136 by four which is 544. Add 256 and 544 to get the final answer of 800
2x + 2x + 124 + 124 = 360
4x + 248 = 360
2x = 360 - 248 = 112
x = 112/2 = 56
Answer:
Step-by-step explanation:
Hope this helps u!!
The experimental probability of landing on blue or red is 13/20.
The theoretical probability of landing on blue or red is 13/15.
As the number of spins increases, we expect the experimental and theoretical probabilities to become closer, though they might not be equal.
<h3>What are the probabilities?
</h3>
The experimental probability of landing on blue or red = (number of times the blue slice landed on by Amanda / total number of times the dial was spun) + (number of times the red slice landed on by Amanda / total number of times the dial was spun)
= 11/20 + 2/20 = 13/20
The theoretical probability of landing on blue or red = (number of blue slices / total number of slices) + (number of red slices / total number of slices)
= 2/15 + 11/15 = 13/15
To learn more about probability, please check: brainly.com/question/13234031
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Answer:
11x^(2) - 3
Step-by-step explanation:
Remove the parentheses: (a)=a
=5x^2-7x+10+7x^2-11-x^2+7x-2
Group the like terms:
=5x^2+7x^2-x^2-7x+7x+10-11-2
Add the similar elements : 5x^2+7x^2-x^2=11x^2
=11x^2-7x+7x+10-11-2
Continue to add similar elements: -7x+7x=0
=11x^2+10-11-2
Then add or subtract the numbers: 10-11-2=-3
<u>FINAL ANSWER</u>:= <em>11x^(2)-3</em>
