B. is the correct answer as it is the only point that falls within or on the linear equalities
<span>The dot product here is 10(9) + 6(5)=120
so the vectors are not orthogonal
</span><span>u.v = |u| x |v| cos (theta) ; theta is the angle between them
we know from above that u.v = 120
|u| = sqrt[10^2+6^2]=11.66
|v| = sqrt[9^2+5^2]=10.29
so we know:
theta =cos^-1 120/(11.66x10.29)
so theta = 25 degrees</span><span>
</span>
Do you mean ones and tenths?
Answer:
6.31 1/6
Step-by-step explanation:
6. For this problem, we know that 2 angles are congruent: the right angles and the angles closest to the "mirror." We know that those angles are congruent for mirrors reflect light to where it is congruent on both sides. Since we have two congruent angles, we can use AA Similarity to solve for the height of the hill. We can set up the proportion 6/34 = 5.5/x. We can cross multiply, which results in 6x = 187, and if we bring over the 6 so that x = 187/6, or 31 1/6.