You first work out the mean then for each number subtract the mean and square the result then work out the mean of those squared differences and take the square rot of that and you're done :)
A = 1/2h(b1 + b2)
A = 1/2*9.28(10.5 + 21.1)
Using calculator
A = 146.624 square cm
Answer:
6
Step-by-step explanation:
plz me
Answer:
4, 6, 63, 10
Step-by-step explanation:
gets mutiplied by 7
