Step-by-step explanation: if its asking how much money he spends in total you multiply
$3.25 x 5 = 16.25
The number is x
it is negative
the square is 28 more than 3 times itself
x²=28+3x
minus (28+3x)
x²-3x-28=0
factor
(x-7)(x+4)=0
set to zero
x-7=0
x=7
this is not the answer because we were told the number was negative
x+4=0
x=-4
correct
the number is -4
test
(-4)²=28+3(-4)
16=28-12
16=16
check
the number is -4
Answer:
x = 60°
Step-by-step explanation:
According to the Outside Angles Theorem, the angle formed by the two tangents in the diagram above is equal to half of the difference of the measures of two arcs that are intercepted.
Therefore:
x = 60°
9514 1404 393
Answer:
A. (2, 0)
Step-by-step explanation:
The x-intercept is the point where the line crosses the x- (horizontal) axis. The coordinates there are (2, 0).
