Answer:
0
Step-by-step explanation:
21(3) +2(7) - 11(7) because the absolute value of -11 is 11
63+14-77
=0
You're talking about one of the online questions on online homeschooling correct?
The cell labeled "a" is a joint frequency of 48
The cell labeled "b" is a marginal frequency of 93
69 out of 100 because if you turn 3/10 into a fraction with a like denominator as 39/100 you get 30/100 and then you add 39 and 30 and get 69/100
<span>In order to reflect a graph about the origin, the rule of translation for each point is (a,b) reflects to (-a,-b).</span><span>The reflection of the point (a,b) across the line y = x is (b,a).</span>By following these rules, you can reflect any line or figure across any of the three most common lines of reflection or the origin.<span>
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Given that the plane is at altitude of 1200m and the angle of depression is 28°, to calculate the distance between the the plane and the rock we assume that we a have right triangle whereby the distance of the plane form the ground is the height, the distance from plane to the rock is the hypotenuse and the remaining distance is the base:
thus
sin θ=opposite/hypotenuse
θ=28°
opposite=1200m
hypotenuse=h
thus
sin 28=1200/h
h=1200/sin 28
h=2556.065 m
