Step-by-step explanation:
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- Set up an equation and solve for x :
⋆ [ Exterior angle is always equal to the sum of two non - adjacent interior angles ]
~Remove the unnecessary brackets
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~Add the like terms : 2x ° & 3x°
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~Move 4x to right hand side and change it's sign
~Similarly move 12 to left hand side and change it's sign
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- Now , Substituting the value of x in (4x+9)° [ Exterior angle ]
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Answer:
11.92 miles
Step-by-step explanation:
Answer:
the equation in the point slope form is
and reducing the equation (slope-intercept form)
Step-by-step explanation:
first we calculate the slope of the line with the formula:
where is a point where the line passes, and is another point where the line passes.
Since we have the following points:
(8, -2)
(5,5)
we conclude that
now we substitute this values to find the slope:
to find the equation now that we know the slope we use the point-slope equation:
and we subtitute the slope and the values of and :
we reduce this equation:
the equation in the point slope form is
and reducing the equation (slope-intercept form)
Answer:
$28.95
Step-by-step explanation:
Sam started out with x dollars.
We represent this situation with the following formula:
x - ($4.85 + $7.95 + $7.95) = $8.20.
Then:
x - $20.75 = $8.20.
To isolate x, we add $20.75 to both sides of this equation, obtaining:
x = $28.95.
Sam started out with $28.95.
Answer:
y= 3 1/4x -21
Step-by-step explanation: