A statistics professor plans classes so carefully that the lengths of her classes are uniformly distributed between 49.0 and 54.
1 answer:
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1) Answer:
2) Answer:
The answer for first equation is, option B.
and the Answer for Second equation is option D.
Answer:
11.5
Step-by-step explanation:
Let think mathematically. We have a finite series.
sin² 5° + sin² 10° + sin² 15° + … + sin² 90° . Remeber that sin is a periodic function, and we also know that
and
also that
I'm imying that two angles that add up to 90 will make cancel out to 1.
Our full series will be
Angle measures increasing by 5 so
85+5=1
80+10=1
75+15=1
70+20=1
65+25=1
60+30=1
55+25=1
50+30=1
sin^2(45) is the same as sin(45)sin(45)=1/2.
And sin^2(90)=1 So our value is 9.5
Answer:
Please see attached image.
Step-by-step explanation:
The best way to find the location of the number line for this point is to use ticks every 1/4 (instead of the standard one unit). See how the number line is subdivided marking ticks every 1/4 (one fourth) of the unit instead of a whole unit in the attached image. That way it is easy to move exactly 5 one fourths to the left of the origin (zero) and place a "dot" in that location (this process is marked with orange arrows in the attached image)
