The distributive property: a(b + c) = ab + ac
(-7c + 8d)0.6 = (-7c)(0.6) + (8d)(0.6) = -4.2c + 4.8d
I don’t know what the options are but I would say either similar or rotated
Answer:
Nico's solution is correct
Step-by-step explanation:
Lorena introduced a spurious minus sign in the denominator in the next-to-last step, so ended up with a result that has the wrong sign.
Answer: 89.7
Step-by-step explanation:
The mean of a data set is the average of all the information given. Therefore, the total combined score is the number of students multiplied by the mean
The total score of the first 44 students: 96.6*44 = <em>4250.4</em>
The total score of the later 13 students: 66.3*13 = <em>861.9</em>
(4250.4 + 861.9)/(44 + 13) = 89.7
Hope this helped
Answer:
C. = 1 and 5
D. = 4 and 5
B. = 2 and 7
A. = 3 and 5
Step-by-step explanation:
