Answer:
80 km/hr
Step-by-step explanation:
This is asking for speed.
Speed=Distance/Time
Speed=720/9
Speed=80 km/hr
Hello from MrBillDoesMath!
Answer:
4
Discussion:
f(x) = abs (x^3 - 3) =>
f(-1) = abs ( (-1)^3 -3 ) => (-1)^3 = -1
f(-1) = abs( -1 -3 ) => -1 =3 = -4
f(-1) = abs(-4) =>
f(-1) = 4
Thank you,
MrB
If one angle is right or obtuse, the other two angles must be acute in order for the angle sum to be exactly 180 degrees. Answer with sometimes always or never
Area of rectangle=> L•l= 8•5= 40 in²
Area of the triangle=> (b•h)/2= (8•3)/2= 24/2= 12 in²
Area of the shadowed surface is 40-12= 28 in²
A) The empirical rule tells you the probability of being within 1 standard deviation of the mean is 68%.
b) The probability that the sample mean falls within 3 standard deviations* of the mean is 99.7%.
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* The standard deviation of the sample mean is 1/√9 = 1/3 of the standard deviation of an individual sample. Hence the same limits (90-110) now cover 3 standard deviations of the sample mean.
