Answer:
A= 2
B=28
C=0
Step-by-step explanation:
ax2 + bx + c=0
Answer:
4th quadernet or bottom right
Step-by-step explanation:
Answer: Option A) x=3π/4, x=5π/4
The asymptotes of the function tan (z) are the values of z that are the odd multiples of <span>π/2:
</span>z=(2n+1)π/2, witn n= ..., -3, -2, -1, 0, 1, 2, 3, ...
In this case z=<span>2x − π, then:
</span>2x − π=(2n+1)π/2
Solving for x: Adding π both sides of the equation:
2x − π+ π=(2n+1)π/2+ π
Adding the terms on the right side of the equation:
2x=[(2n+1)π+2π]/2
Common factor π:
2x=[(2n+1)+2]π/2
2x=(2n+1+2)π/2
2x=(2n+3)π/2
Multiplying both sides of the equation by 1/2:
(1/2)(2x)=(1/2)[(2n+3)π/2]
(2/2)x=(2n+3)π/[(2)(2)]
x=(2n+3)π/4
For n=-1:
x=[2(-1)+3]π/4
x=(-2+3)π/4
x=π/4
x=π/4<π/2 No
For n=0:
x=[2(0)+3]π/4
x=(0+3)π/4
x=3π/4
π/2<x=3π/4<3π/2 Ok
For n=1:
x=[2(1)+3]π/4
x=(2+3)π/4
x=5π/4
π/2<x=5π/4<3π/2 Ok
For n=2:
x=[2(2)+3]π/4
x=(4+3)π/4
x=7π/4
x=7π/4>3π/2 No
Answer: x=3π/4, x=5π/4
Answer:
Area of the trapezium = 30 ![cm^{2}](https://tex.z-dn.net/?f=cm%5E%7B2%7D)
Step-by-step explanation:
a = 14
b = 4
h= 5
Area of trapezium =
( a + b) h =
(14+4) 5
=
x 18 x 5 = 6 x 5 <em> [I solved </em>
<em> and 18]</em>
= 30!
Swimmers: 50 children ÷ 12 = 4.2 (you can't have a decimal so you must round up)
5 adults are need.
Dancers: 32 children ÷ 15 = 2.1 (you can't have a decimal so you must round up)
3 adults are need.
Minimum number of adults needed is: 5 for swimmers + 3 for dancers = 8 adults