The sale tax it's $0.07 for every $1 bc 2.94 divided by 42 =0.07 and 0.07•58=4.06 So the sales tax for an item that cost $58.00 is $4.06
The value of x that makes m║n is 40°
<h3>Line of transverse on parallel lines: </h3>
In geometry, the line that intersects two straight lines at distinct points is known as a transversal.
<h3>Corresponding angles: </h3>
The angles that are formed when two parallel lines are intersected by a third line i.e a transversal are corresponding angles.
Note:
Two corresponding angles are formed by a transversal with two parallel lines that are equal
Here we have
The angle made by the intersecting line with line m is 120°
And the angle made by the same line with line n is 3x°
Let us assume that m║n
From above observations
The given angle are corresponding angles
=> 3x° = 120°
=> x° = 40°
Therefore,
The value of x that makes m║n is 40°
Learn more about the Line of transverse at
brainly.com/question/11592045
#SPJ1
Answer:
a) t-test for two independent samples
b) For this case we have two different samples and both are less than 30 and we don't have any info about the populationd deviation's. So for this case the most appropiate test is the t-tes for two independent samples
Step-by-step explanation:
The independent t-test, is known as two sample t-test or independent-samples t-test, is an statistical test used to " determines whether there is a statistically significant difference between the means in two unrelated groups"
The system of hypothesis could be on this case like this:
Null hypothesis: 
Alternative hypothesis: 
Or equivalently:
Null hypothesis: 
Alternative hypothesis: 
The statistic to check the hypothesis is given by:

And this statistic follows a t distribution with degrees of freedom 
We can check the hypothesis using the p value method or the critical approach, but we need to have a significance level.
Part a
i) t-test for two independent samples
Part b
Explain the rationale for your selection in (a). Specifically, why would this be the appropriate statistical approach?
For this case we have two different samples and both are less than 30 and we don't have any info about the populationd deviation's. So for this case the most appropiate test is the t-test for two independent samples
It’s 60 because both lines are parallel
Answer:
A: -3x
B: 14x
C: -21
A and B
Step-by-step explanation:
says so