Answer:
∠2 = 105°
Step-by-step explanation:
180° -75° = 105°
Answer:
x³+y³=4697
Step-by-step explanation:
x+y=11
y=11-x
325=x²+y²
=x²+(11-x)(11-x)
=x²+121-11x-11x+x²
325=2x²-22x+121
0=2x²-22x-204
=(2x+12)(x-17)
0=2x+12 or 0=x-17
-12=2x 17=x
-6=x
y=11-x
y=17 or -6
(-6,17) or (17,-6)
=x³+y³
=(-6)³+(17)³
=4697
First problem:
The answer is C because theoretically it should have a 50% of landing
heads but instead it lands heads 56% of the time. Thus this is 6% higher
than 50%. It's not D because there is not specified detail of how the
person got this data so you can assume that the person did a fair
survey/data collection.
Second problem:
So in a data size of 490, 140 of them we trout. This means that 140/490 or 28.57% of the fish are trout. This means that in a sample size of 5000 fish, 5000*0.2857 or 1428.57 are trout.
Third problem:
The Science students seem to have a higher average score because the average score of Math students are:
(32+33+34+34+35+37+39+40+40)/9=36
average score of Science students are:
(41+42+43+43+46+46+47+49+49)/9=45.111
