The answer is 28x^2+20x.
Hope this helps.
Answer:
the smaller angle is 35 degrees.
Step-by-step explanation:
complementary angles are 90 degrees, so you would set your entire equation to 90.
we can use the variable x to represent the unknown smaller angle. we know that the larger angle is 20 more degrees than the unknown smaller angle (x). we can set up the equation like this:
x + x + 20 = 90
the first x represents the smaller angle and the x + 20 represents the other angle, which is 20 more than the smaller angle. we set it to 90 because we know that the entire angle will be 90 degrees
move variables and constants to opposite sides of the equal sign and combine like terms:
x + x = 90 - 20
2x = 70
divide both sides by 2 to isolate 90:
x = 35
you can plug x back into the equation to check your answer if you want
hope this helps!! :)
Answer:
Traffic traveling north on Main Street must make a 125° turn onto the new road. This is the angle between where the traffic was originally headed and where it is headed after it makes the turn. Traffic on 2nd Street is traveling south, the opposite direction.
Answer:
D
Step-by-step explanation:
We have to determine if the sets of quadratics are equivalent:
A ) x² - 10 x - 14 = 0 and ( 2 x - 10 )² = 156
( 2 x - 10 )² - 156 = 0
4 x² - 40 x + 100 - 156 = 0
4 x² - 40 x - 56 = 0 / : 4
x² - 10 x - 14 = 0 T ( True )
B ) ( x - 10 )² = 68 and x² - 20 x = - 32
( x - 10 )² = 68
x² - 20 x + 100 = 68
x² - 20 x = 68 - 100
x² - 20 x = - 32 T ( True )
C ) x² - 6 x = 247 and ( x - 3 )² = 256
( x - 3 )² = 256
x² - 6 x + 9 = 256
x² - 6 x = 247 T ( True )
D ) ( x + 5 )² = 65 and x² = 90 - 10 x
( x + 5 )² = 65
x² + 10 x + 25 = 65
x² = 65 - 25 - 10 x
x² = 40 - 10 x F ( False )
