Answer:
x<=2
Step-by-step explanation:
The formula we need is this one:
. Filling in accordingly, we have x+4(x+4+1)=x+1(x+1+11). Simplifying that we get (x+4)(x+5)=(x+1)(x+12). We will FOIL both sides to get
. Combining like terms gives us this simplification: 0=4x-8. If we factor out the common 4, we have 0 = 4(x-2). By the Zero Product Property, eitheer 4=0 or x-2=0. Well obviously, 4 does not equal zero, so x-2 = 0, and x = 2.
A) 45 mins
each big square represents 15 mins
b) 100km/h
speed= distance/time so it would be 50km/0.5h= 100km/h
Hope this helps! :)
Answer:
The answer to the question is
μx + (σx/4)
Step-by-step explanation:
The sample mean that is one standard deviations above the population mean is given by
value = μx + (Number of standard deviations)
(σx/√n)
value = μx + 1 (σx/√16)=
= μx + (σx/4) =
Where
μx = Population mean
σx = Population standard deviation
n = Sample size
The standard error of the mean is
σ/√n =σ/√16 = σ/4
The standard of error is an indication of the expected error in the mean of a sample from the mean of the population.
The above statements is based on the central limit theorem, which states that, in particular instances the normalized sum of independent random variables becomes closer and closer to those of normal distribution regardless of the variation in the sample of the variables
A circle is 360° , if youdivide<span> an arc's </span>degree measure<span> by 360°, you find the fraction of the circle's </span>circumference<span> that the arc</span>makes<span> up. Then, if you multiply the length all the way around the circle </span>by that fraction, you get the length along the arc.
