Answer:
Let x = the number
A negative number is 42 less than its square ⇒
x = x2 - 42
x2 - x - 42 = 0
(x - 7)(x + 6) = 0
x = 7 or -6
But since it is given that x is negative, the final answer is x = -6.
X=48 because pence you simplify both sides it’ll be 12
Answer:
The sampling distribution of the sample average score for this random sample of 64 students is approximately normal, with mean 19.6 and standard deviation 0.625.
Step-by-step explanation:
Central Limit Theorem
The Central Limit Theorem estabilishes that, for a normally distributed random variable X, with mean and standard deviation , the sampling distribution of the sample means with size n can be approximated to a normal distribution with mean and standard deviation .
For a skewed variable, the Central Limit Theorem can also be applied, as long as n is at least 30.
Mean of 19.6 and a standard deviation of 5.0.
This means that
What is the sampling distribution of the sample average score for this random sample of 64 students?
By the Central Limit Thoerem, the sampling distribution of the sample average score for this random sample of 64 students is approximately normal, with mean 19.6 and standard deviation
I assuming by "solve the equation" you mean I have to find the zeroes of this equation
(i.e the values of x which satisfy this equation). For that any one of the factor value must be equal to 0 so that when it will multiply with other factors it will make the left hand side equal to right hand side giving us one of the possible solutions. Since there are 10 different factors there will be 10 different solutions here to x.
they are:
(in order of the factors mentioned in the question)
(i)
(ii)
(iii)
(iv)
x+2=0
x=-2
(v)
x-7=0
x= 7
(vi)
x+3=0
x=-3
(vii)
x-9=0
x=9
(viii)
x+7=0
x=-7
(ix)
(x)
OMG where do I start just comment below this post and I will help you with all promise