Answer:
x and y are the same. they are both 99
Step-by-step explanation:
Answer:
y = x^2 - 4x - 6.
Step-by-step explanation:
The roots are 2 + √10 and 2 - √10, so in factor form we have:
(x - (2 + √10))(x - (2 - √10))
= ( x - 2 - √10)(x - 2 + √10)
= x^2 - 2x + √10x - 2x + 4 - 2√10 - √10x + 2√10 - √100
= x^2 -4x + 4 - 10
= x^2 - 4x - 6.
Answer:
Radius is half the diameter of a circle
Step-by-step explanation:
If the diameter was 6, then the radius is 3
The numbers represent an arithmetic progression.
The difference between terms is d=7.
S=a1+a2+...+an, a1=3 and
an=a1+(n-1)×d=3+17×7=122
S=(a1+an)n/2=(3+122)×18/2=125×9=1125
