Answer:
2
Step-by-step explanation:
x2+3x=6
Step 1: Subtract 6 from both sides.
x2+3x−6=6−6
x2+3x−6=0
For this equation: a=1, b=3, c=-6
1x2+3x+−6=0
Step 2: Use quadratic formula with a=1, b=3, c=-6.
x=
−b±√b2−4ac
2a
x=
−(3)±√(3)2−4(1)(−6)
2(1)
x=
−3±√33
2
x=
−3
2
+
1
2
√33 or x=
−3
2
+
−1
2
√33
Substitute n with 5 and 6
(3x5)+5 = 20
(3x6)+5 = 23
Answer:
50/50 chance
Step-by-step explanation:
Answer:
Step-by-step explanation:
10 less than the product of 5 and a number "a"
Product of 5 and "a": 
Therefore, 10 less than 5a is
Answer:
x = 27
Step-by-step explanation:
The sum of the interior angles of a polygon is
sum = 180° (n - 2) ← n is number of sides
Here n = 7 , then
sum = 180° × 5 = 900°
sum the interior angles and equate to 900
3x + 31 + 135 + 5x - 4 + 7x - 64 + 120 + 6x - 8 + 4x + 15 = 900 , that is
25x + 225 = 900 ( subtract 225 from both sides )
25x = 675 ( divide both sides by 25 )
x = 27
