Answer:
Answer:x=
−3z−1
0
Step-by-step explanation:x=
Step 1: Add -2x to both sides.
2x+3z+4+−2x=2x+3+−2x
3z+4=3
Step 2: Add -3z to both sides.
3z+4+−3z=3+−3z
4=−3z+3
Step 3: Add -4 to both sides.
4+−4=−3z+3+−4
0=−3z−1
Step 4: Divide both sides by 0.
0
0
=
−3z−1
0
x=
−3z−1
0
Answer:
a = -3
Step-by-step explanation:
−40 + 10a = -70
10a = -70 + 40
10a = -30
a = -30/10
a = -3
Answer:
a)
b)
c)
d)
Step-by-step explanation:
Let X the random variable of interest and we know that the distribution is given by:
And for this problem we can use the cumulative distribution function in order to solve the items:
Part a
We want to find this probability:
Part b
Part c
And we can calculate the probability with this difference:
Part d
Since we have a continuous distribution the the probability for an unique value would be:
The value for r is mathematically given as
r<-82
This is further explained below.
<h3>What are inequalities?</h3>
In mathematics, an inequality is a relation that compares two numbers or expressions in a way that is not equal. The most common use is doing a size comparison between two numbers on a number line.
Generally, eighty-two less than r is less than −164 is mathematically given as
r-82 <-164
r<-82
Therefore
r<-82
Read more about inequalities
brainly.com/question/20383699
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