Answer:
- discriminant: 11
- solutions: -6, +5
Step-by-step explanation:
Comparing your equation to the standard form, we can find the values necessary to compute the discriminant:
x^2 +x -30 = 0
ax^2 +bx +c = 0
So, we have ... a = 1, b = 1, c = -30
The discriminant is defined as ...
d = √(b² -4ac) = √(1² -4(1)(-30)) = √121
d = 11
The solutions are ...
x = (-b ± d)/(2a) = (-1 ±11)/2
x = {-6, +5}
Answer:
a=55
b=55
c=125
d=125
e=55
f=55
g=125
Step-by-step explanation:
Answer:
1/2
Step-by-step explanation:
Cos 60 =
1/2 =
Multiplying both sides by 4
=> XZ = 2
Sin Y =
Sin Y =
Sin Y = 1/2
Answer:
yes it is valid influence because he asked all 25 student in her math class
Answer:
The pen costs $4.90 after the discount
Step-by-step explanation:
Multiply 12.25 and 60% then subtract the product from 12.25.