A40=a1 +(40-1)r
in this case r is 3 beceause -2+3 will be 1 etc
a40=-2 +39*3
Answer: k
Step-by-step explanation:
Answer:
1.
Mean: 65
MAD: 6.4
2.
Mean: 60.5
MAD: 6.4
3. The diference of the means are 4.5
I’m sorry, I do not understand the last one.
Step-by-step explanation:
The mean is the average, add all of the values and divide the result by the number of values. The MAD is the mean absolute deviation. You find it by taking the distance between the values and the mean. You then add them together and divide it by the mean. I really hope this helps you!
Answer:
Step-by-step explanation:
The area of the rectangle is 3x(2x+5)=6x^2 + 15x
The are of the triangle is 2(x-3)/2 = x-3
Now subtract the triangle are from the rectangles area
6x^2 + 15x - x + 3 = 6x^2 + 14x + 3
so hard.but i will help you
