Answer:
The table A represent a proportional relationship
The table B not represent a proportional relationship
Step-by-step explanation:
we know that
A relationship between two variables, x, and y, represent a proportional variation if it can be expressed in the form or
In a proportional relationship the constant of proportionality k is equal to the slope m of the line and the line passes through the origin
<u><em>Verify each table</em></u>
<em>Table A</em>
Find the value of k
For x=1,y=2 ------>
For x=3,y=6 ------>
For x=4,y=8 ------>
For x=5,y=10 ------>
All the values of k are the same
so
The table A represent a proportional relationship
The equation of the proportional relationship is equal to
<em>Table B</em>
Find the value of k
For x=1,y=3 ------>
For x=2,y=4 ------>
The values of k are different
so
The table B not represent a proportional relationship
You would need 5 more x rays because then it would be a ratio of 30 x rays/ 60 ultrasound technicians. Which would be simplified to 1 x ray to every 2 ultrasounds
Answer:
D. 20°, 60°, and 100°
Step-by-step explanation:
basically you're testing which set adds up to 180°:
D should immediately catch the eye since it has a simple 100°, and 60+20 is 80, making D the correct answer
a: 189°
b: 90°
c: 120°
d: 180°
Answer:
a. First derivative
Step-by-step explanation:
To determine the nature of the stationary points:
Either Find dy/dx or d2y/dx2
If the result is: positive—the point is a minimum one; negative—the point is a maximum one; zero—the point is a point of inflexion
or
Determine the sign of the gradient of the curve just before and just after the stationary points.
If the sign change for the gradient of the curve is: positive to negative—the point is a maximum one; negative to positive—the point is a minimum one; positive to positive or negative to negative— the point is a point of inflexion
Answer:
16
Step-by-step explanation:
100 is at the very limit, you've already spent 20 on the cake, now just count by fives to eighty and 16 x 5 = 80