Answer:
71.6 degrees
Step-by-step explanation:
Given the vectors
u= <8,4> v = <9.-9> (5 points)
u*v = (8, 4)*(9, -9)
u*v = 8(9)+(4)(-9)
u*v = 72 - 36
u*v = 36
|u| = √8²+4²
|u| = √64+16
|u| = √80
|v| = √9²+9²
|v| = √81+81
|v| = √162
Using the formula
u*v = ||u||v| cos theta
36 = √80(√162)cos theta
36 = √12960 cos theta
cos theta = 36/√12960
cos theta = 36/113.8
cos theta = 0.3162
theta = arccos(0.3162)
theta = 71.56 degrees
Hence the angle between the given vectors to the nearest tenth of a
degree is 71.6 degrees
Answer:
divide by 2
Step-by-step explanation:
to go to 12 to 6 , you will have to divide by 2
12/2 = 6
12 and 6 are on the same side in both triangles , that is why I used those two numbers to figure out the scale factor
Answer:
208/325
0.64
Step-by-step explanation:
Write the fraction as the number that voted on top of the number of total freshmen
For the decimal, divide 208 by 325. (This also gives you the decimal)
Line EF and Line Segment EF
this is probs wrong, but idk bc there aren't any answer choices
Step-by-step explanation:
Since the powers are equal you can write the expression as a one root
But we cannot get 9 out since the square root of 9 is 3 which is second power (3^2) and the power of the root is 4
Holpe this helps, if you need further explanation you can ask.
