From the first 2 statements again , x + 8 = y.
area of the hole would be 4x cm^2
area of sheet without hole is 9y cm^2
9y - 4x =76 ------------- eqn one
y = x + 8 ----------------eqn two
subs eqn two into one and u got it
btw what questions are these :o
If x = -7 then
<span>-3x+6y=-21
</span><span>-3(-7) +6y = -21
21 + 6y = -21
6y = -42
y = -7</span>
Answer:
-1
Step-by-step explanation:
∫x^2 -x +1 dx = x^3/3 -x^2/2 +x evaluated at 1 subtracting the value at 0
1/3 -1/2 +1 - (0/3 -0/2 +0)
5/6
Now lets find
∫x^2 -x +1 dx=x^3/3 -x^2/2 +x evaluated at 2 subtracting the value at 1
2^3/ 3 -2^2/2 +2 - (1/3 -1/2 +1 )
8/3 -2 +2 - (5/6)
8/3 -5/6
11/6
The total is 5/6 - 11/6 = -6/6 or -1
Answer:
55 ° is correct answer option (c)
5x + 10 = -4x - 17
+4x +4x
5x + 4x = 9x
9x + 10 = -17
-10 -10
-27
9x = -27 9x/9 = -27/9
x = -3
