Check the picture below
so... it looks more or less like so
now, notice the "p" distance, bear in mind that, if the parabola opens downwards, "p" is a negative unit, so, in this case -4
thus
Answer:
$2.92
Step-by-step explanation:
$5-$1.19-$0.89=$3.81-$0.89=$2.92
Let's do the sum first:
x+4-8x+10 = x-8x +4+10 = -7x + 14
coefficient is the number beside the x.
so the coefficient for this sum is -7
the square root of 139 is 11.78
9514 1404 393
Answer:
Step-by-step explanation:
The midline is half the length of the parallel base.
2(2x +36) = 3x +57
4x +72 = 3x +57 . . . . . . eliminate parentheses
x = -15 . . . . . . . . . . subtract 72+3x from both sides
Then the length of GH is ...
GH = 2x +36 = 2(-15) +36 = -30 +36
GH = 6
_____
The calculation steps are shown above. The strategy is to take advantage of the relation between the lengths of a midline and the corresponding base segment.