Answer:
(-4,-19)
Step-by-step explanation:
Substitute the points into the equation and see if it is true
y = 4x-3
-3 = 4(4) -3
-3 = 16-3
-3 = 13 false
-19 = 4(-4) -3
-19 = -16-3
-19 -19 true
Answer:CPCT stands for Corresponding Parts of Congruent Triangles which is used to compare the corresponding parts of two congruent triangles to find out the relationship between the parts of the two triangles. ... If AC≅DF, AB≅DE, and BC≅EF, then triangles ABC and DEF are congruent by the SSS postulate. I HOPE THIS HELPS
Answer:
a) x = 119 minutes
the mean value for average movie length in minutes is 119 minutes
b) margin of error M.E = 44 minutes
Note; Since the number of samples used is not given, the standard deviation r cannot be calculated using the equation
M.E = zr/√n
Step-by-step explanation:
Confidence interval can be defined as a range of values so defined that there is a specified probability that the value of a parameter lies within it.
The confidence interval of a statistical data can be written as.
x+/-zr/√n
x+/-M.E
M.E = zr/√n
Given that;
M.E = margin of error
Mean = x
Standard deviation = r
Number of samples = n
Confidence interval = 95%
z value (at 95% confidence) = 1.96
a) The mean value x can be calculated as;
x = (a+b)/2
Where a and b are the lower and upper bounds of the confidence interval;
a = 75 minutes
b = 163 minutes
substituting the values;
x = (75+163)/2
x = 119 minutes
the mean value for average movie length in minutes is 119 minutes
b) the margin of error M.E can be calculated as;
M.E = (b-a)/2
Substituting the values;
M.E = (163-75)/2
M.E = 44 minutes
Since the number of samples used is not given, the standard deviation r cannot be calculated using the equation
M.E = zr/√n
Hello!
The goal of this to isolate the variable and solve for the given variable which is "t".
8t+3=27=2t
First you subtract three from both sides.
8t+3=27=2t
-3 -3
8t=24=2t
Next subtract 2t from both sides.
8t=24=2t
-2t -2t
6t = 24
now isolate the variable by dividing 6 on both sides
6t = 24
/6 /6
t = 4
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I hope this helps,
-Oceanbreeze24
