Simplify this expression 2wz-w-6wz+4w-7
2 answers:
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(15.9-24)/3.7 ≈ -2.19
The given x-value is about 2.2 standard deviations below the mean, as shown in the attached.
The given x-value is about 2.2 standard deviations below the mean, as shown in the attached.
Answer:
Step-by-step explanation:
Let the speed of the roller coaster at the bottom is v.
radius, r = 47 m
Let the mass is m and the force at the bottom is 2.5 times the weight.
F = 2.5 mg
So, the force is
v² = 1.5 gr
v² = 1.5 x 9.8 x 47
v = 26.3 m/s