I hope this helps you
1.y^2+3y-4 =0
a=1
b=3
c= -4
disctirminant=b^2-4ac
disctirminant=3^2-4.1.(-4)
disctirminant=9+16
disctirminant=25
Answer:
Step-by-step explanation:
1) √2 + 2√2 = ( 1 + 2 ) √2 = 3*√2 = 3√2
4) √8 + √2 = √2*2*2 + √2 = 2√2 + √2 = ( 2 +1 ) √2 = 3√2
7) 2√5 - √5 = (2 - 1)√5 = 1 √5
10 3√5 - 2√5 = (3 - 2) √5 = 1√5
Answer:
x = 15.8
Step-by-step explanation:
Answer:
16 cm
Step-by-step explanation:
We have to first find the radius of the circle.
The area of a sector is given as:

where α = central angle of the sector = 120°
r = radius of the circle
Therefore:

The diameter of a circle is twice its radius, therefore:
D = 2 * 8 = 16 cm
The diameter of the circle is 16 cm
You do 5.34 divided by 6.
One orange costs .89 cents.
Hope it helps!