Answer:
7.8
Step-by-step explanation:
Answer:
The answer is 30
Step-by-step explanation:
To get a.b
For a = <wa, za> and b = <wb, zb>, the dot product represents multiplication sign.
We say,
a•b = (wa)(wb) + (za)(zb)
The next step is to substitute the given information into the above equation we generated.
Then we say,
a•b = 5•4 + 2•5
a.b = 20 + 10
a•b = 30
The answer is 30
Answer:
Step-by-step explanation:
Given the expression that represents the situation where Alex and Janet have read the same number of books as
4m = m-1
where m represents the number of months Janet has been reading books,
To calculate m
STEP 1: subtract m from both sides
4m - m = -1
3m = -1
Step2; divide both sides by 3
3m/3 = -1/3
m = -1/3
Hence the value of m is -1/3
