Answer:
x = -1 y = -1
Step-by-step explanation:
x + 3y = −4
x + 5y = −6
Multiply the first equation by -1
-x - 3y = 4
The add to the second equation to eliminate x
-x - 3y = 4
x + 5y = −6
--------------------
2y = -2
Divide by 2
2y/2 = -2/2
y = -1
Now solve for x
x+3y = -4
x +3(-1) = -4
x -3 = -4
Add 3 to each side
x-3+3 = -4+3
x = -1
<span>m, because triangle ABC is similar to triangle EDC (by 3 congruent angles).</span>
Answer:
.
Step-by-step explanation:
Start by finding the slope of this line.
If a slanting line goes through 
and 
, where 
, the slope of this line would be:
.
The line in this question goes through 
and 
. Hence, the slope of this line would be:
.
If a slanting line with a slope of 
and goes through the point , the equation of this line in the point-slope form would be:
.
For the line in this question, the slope is 
. Take as the chosen point on this line. The point-slope form equation of this line would be:
.
Rewrite to obtain the equation of this line in the slope-intercept form:
.
Answer:
Step-by-step explanation:
H0: µ1 – µ2 = 0
HA: µ1 – µ2 ≠ 0
We have given,
The population variances are not known and cannot be assumed equal.
The test statistic for the test is
Where,
= sample meaan of population 1
= sample mean of population 2
= sample size of population 1
= sample size of population 2
Therefore, this is the test
