<span>A is rational</span>
<span>B is irrational</span>
<span>Product of a and b is irrational.</span>
Answer:
1. 
2. 
Step-by-step explanation:
Given
Variation: inverse Proportion
y = 7, x = 9
Required
- Write an equation connecting y and x
- Find y when x = 21
Given that thee variation is inversely proportional;
This implies that

Convert variation to equation
----------- Equation 1
Where k is the constant of variation
Substitute 7 for y and 9 for x in equation 1

Multiply both sides by 9


Substitute 63 for k in equation 1

Multiply both sides by x


Hence, the equation connecting x and y is 
Solving for when x = 21
Substitute 21 for x in the above equation

Divide both sides by 21


Answer:
sorry but i cant see the anwser choices
Step-by-step explanation:
Yes
8+3= 11
You regroup the one
4+2=6+1=7
Hope this helps!
Answer:
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