Answer:
x+9=4x-4
=) x -4x = -4-9
=) -3x = -13
=) x = 13/3
It is not the form of ax 2 +bx +c =0
S=6a²
a=8mm
S = 6 * 8² = 6 * 64 = 384 mm²
Answer:
he is currently 34
Step-by-step explanation:
x + 6 = 5(x-26)
x + 6 = 5x - 130
+130 +130
x + 136 = 5x
-x -x
136 = 4x
/4 /4
x = 34
You can check your work as well:
34 + 6 = 40
34 - 26 = 8
8 x 5 = 40
2 x = 72
4 n = 7.5
6 no solution (the variable cancelled itself out)
8 no solution
10 x = 43
12 y=-5.83-x
14 <em>(P-2l)/2 = w</em>
16 Your team's score was 85 (because you scored 13 more points than the other team and 72 + 13 = 85).
18 The other scientist had the greater temperature (950 C > 1725 F), since 950 C = 1742 F
