Simplify
3x^2 - x + 7 + 6x^2 - 3
Collect like terms
(3x^2 + 6x^2) - x + (7 - 3)
Simplify
<u>9x^2 - x + 4</u>
Answer:
Step-by-step explanation:
id like to help but i cant see the attachment :(
Answer:
D. The students are not part of the population
Step-by-step explanation:
The first three options are true of this sample. D is the only option that is not true.
Answer:
X= (Sin^-1)^57/11
Step-by-step explanation:
Because there is first find the perpendicular and again to know the angle of triange and again to find the area of triangle=1/2×8×11×sinthita
Answer:
13, 15
Step-by-step explanation:
Let x represent the smaller of the two integers. Then the larger is x+2. The required relation is ...
x² = 154 +(x +2) . . . . . . the smaller squared is 154 more than the larger
x² -x = 156 . . . . . . . . . . subtract x
x² -x +1/4 = 156.25 . . . complete the square
(x -1/2) = √156.25 = 12.5 . . . . take the square root
x = 13 . . . . . add 1/2
The two integers are 13 and 15.
__
<em>Check</em>
13² -15 = 169 -15 = 154 . . . as required