3x²+x-5=0
a = 3, b = 1, c= -5
-> ∆ ( delta ) = b²-4ac = 61 > 0
-> x1 =( -b+√∆ )÷ 2a =...
x2 = (-b-√∆)÷2a =...
p/s: do your teachers teach you how to use ∆ ( delta ) in maths calculation ? i live in europe and our teachers teach us that way. however, it is a rịght and fast way. you should learn it.
Answer:
x>4
Step-by-step explanation:
because x is greater than 4
SO EASY 60 people = 10 minutes in line 240 people = 40 minutes in line
<u>Answer:</u>
The correct answer option is B. ∠XYZ.
<u>Step-by-step explanation:</u>
In geometrical terms, an angle is the figure which is formed by two rays which are called the sides of the angle.
Here, for the described situation for a triangle XYZ, Y is the vertex with the side rays or sides of the angle YX and YZ.
Considering the sides of the angle, you can name the angle as either ∠XYZ or ∠ZYX or simple ∠Y without mentioning any side rays.
J
j=agv where a is a constant of proportionality.
j=1 when g=4 and v=5
1=a*4*5
1=20a
a=1/20
a= 0.05
j=0.05gv
When g=10 and v=9,
j=0.05*10*9
j=0.5*9
j=4.5
