The mean is 50 because if half get a "100" and the other half get a "0" the mean is 50. The standard deviation is 7.07 when you plug this into the 1-VARS stats on a calculator after putting this data in L1 List data set on the calculator.
a. 50
b. 7.07
Okay so...
x² = 5x + 24 move it, so one side equals zero.
x² - 5x - 24 =0 factors of 24 is 3 and 8 when you subtract 8 from 3 you get -5.
(x+3)(x-8)
x+3= 0 or x-8=0
x= -3 or x=8
b. 2x² - 5x + 1=0
quadratic formula = -b +-√b²-4ac / 2a
a= 2 b= -5 c=1
-(-5) +-√(-5)² - 4(2)(1) / 2(2)
5+-√25 - 8 / 4
=5 +- √17 / 4
x= 5/4 + √17 / 4 or x= 5/4 - √17/4
i couldn't find the plus-minus sign that why there's (+-)
i hope this helps! :)
Answer:
89°
Step-By-Step Explanation:
<WYT is the angle 4
<UYW is the angle 5
since angle 4 and 5 are on the same line and
anngle 4 is 91°,
180° - 91° = 89°
This shows that <UYW is 89°
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Answer:
183.25 or 183 remainder 1
Step-by-step explanation:
733 is not divided by 4 fully it have remainder
Answer:
36
Step-by-step explanation:
making tally marks for every skittles and mms???
