The inequality simplifies to
15.3 + 11.22x > -14.25 -10.2x -24
21.42x > -53.55 . . . . . . . . . . . . . . . . add 10.2x-15.3
x > -2.5 . . . . . . . . . . . . . . . . . . . . . . . divide by 21.42
The solution set is best represented by
(-2.5, ∞)
Answer:
a, d and e.
Step-by-step explanation:
A perfect square is one where the coefficient is a perfect square and the exponent is even.
So they are 25x^12, 36x^16 and 9x^8.
Answer: the z score is 1
Step-by-step explanation:
Since the head circumference for boys at birth is normally distributed,
we would apply the formula for normal distribution which is expressed as
z = (x - µ)/σ
Where
x = head circumference for boys at birth.
µ = mean head circumference
σ = standard deviation
From the information given,
µ = 34.5cm
σ = 1.3 cm
For a boy born with a head circumference of 35.8cm, the z score is
z = (35.8 - 34.5)/1.3
z = 1
The third one because x2-x1 is divided by y2-y1
Option B:
A ray has two endpoints and extends infinitely in both directions.
Solution:
Option A: Two lines that intersect are called skew lines.
It is false because,
Two lines are said to be skew lines if they do not intersect and do not lie in the same plane.
Option B: A ray has two endpoints and extends infinitely in both directions.
It is false because,
A ray has one endpoint and extends infinitely in one direction.
Option C: A line is a set of points that extends infinitely in both directions.
It is false true.
A line is a set of points that extends infinitely in both directions.
Option D: Two lines in the same plane are said to be perpendicular if they never intersect.
It is false because,
Two lines are said to be perpendicular if they are intersect.
Hence Option B is true. A line is a set of points that extends infinitely in both directions.
