Answer:
65.56°
Step-by-step explanation:
We know that if we take dot product of two vectors then it is equal to the product of magnitudes of the vectors and cosine of the angle between them
That is let p and q be any two vectors and A be the angle between them
So, p·q=|p|*|q|*cosA
⇒
Given u=-8i-3j and v=-8i+8j
let A be angle before u and v
therefore, 
⇒
Therefore angle between u and v is 65.56°
Answer:
The answer is 1.97 meters per second
Step-by-step explanation:
Plz give brainliest thanks :) Let me explain you how you do this Housefly is 1.967
The 7 is the tenth and the 6 is the hunderth
1.967 round to 1.96 from the hunderths because the last number is greater than 5 so you round up!
Answer: 2 calls
Step-by-step explanation:
4 mins/2 minutes per call
Answer:
<h2>48</h2>
Step-by-step explanation:
so for every 3 Reid washes there are 4 Elsie washes
the ratio of washing is 3:4
lets add 3 and 4 up
3 + 4 = 7
now lets divide the total number of washes by the added ratio
84/ 7
=12
now we know that 1 part is 12
to find Elsie's part we need to x 12 by how many parts she has got
she washed 4 times
4 x 12
=48
