Answer: 2x^2+2x-24
Step-by-step explanation:
2(x+4)(x−3)
=(2(x+4))(x+−3)
=(2(x+4))(x)+(2(x+4))(−3)
=2x^2+8x−6x−24
=2x^2+2x−24
Answer:
Step-by-step explanation:
<u>Given</u>
- m∠ABC = x°
- m∠BCD = 25°
- m∠CDE = 55°
- m∠DEF = 3x°
Add two more parallel lines passing through points C and D.
Consider alternate interior angles formed by the four parallel lines.
<u>The angles between the two middle lines are equal to:</u>
- m∠BCD - m∠ABC = m∠CDE - m∠DEF
<u>Substitute values and solve for x:</u>
- 25 - x = 55 - 3x
- 3x - x = 55 - 25
- 2x = 30
- x = 15
m∠ABC = 15°
Answer:
7 : 210
Step-by-step explanation:
ratio of teachers : students
= 210 : 3300 ← divide both parts by 30
= 7 : 210
Answer:
A: -7 and 3
B: 1 and 9
C: -8 and 6
D: 4 and 10
Step-by-step explanation:
you just count the distance as your going:
-8 -7 -6 -5 -4 -3 -2 -1 0 1 2 3 4 5 6
......^.........................................^
-7 and 3 are both 5 away from -2