Answer:
1. 36 sq un
2. 40 sq un
3. 20 sq un
Step-by-step explanation:
The answer for number one is 36 square units because the rectangular area is 24 sq un and the triangular area is 12 sq un so I added them to get 36 sq un. The second answer is 40 sq un because if you cut the shape into 2 shapes you get 2 equal trapezoids. Each trapezoid is 20 sq un so I multiplied it by two to get 40 sq un. The third answer is 20 because the side triangles are 2 sq un each and the square on the bottom is 16 sq un. By the way, sq un means square units lol.
3x = 5(x-4)
I am not sure about the equal sign though.
Answer:
186
Step-by-step explanation:
The sample mean, x, is the central value in the confidence interval, that is, the average between the upper and lower bounds of the interval.
In this case, the Lower bound is 184.00 and the upper bound is 188.00. Therefore, the sample mean is given by:
The mean length, in seconds, of the sampled songs is 186.00.
Answer:Ava will have a total of 8 trips to make to total of 25 kilometers
Step-by-step explanation:
Total distance that Ava has already cycled this year is 9 kilometers.
she plans to cycle 2 kilometers during each trip to work.
Let x represent her number of trips to work. Therefore, for Ava to make a total of 25 kilometers, it means that
2x + 9 = 25
Subtracting 9 from both sides of the equation, it becomes
2x + 9 - 8 = 25 - 9
2x = 16
x = 16/2 = 8
