Answer:
Step-by-step explanation:
-D/9>4, multiply each side by -9 (and reverse sign because of multiplication by a negative)
D<-36
Answer:
(a) 
(b) 
Step-by-step explanation:
Given
Variation: Inverse proportional.
This is represented as:

See attachment for table
Solving (a):
First convert variation to equation

From the table:

So, we have:





Substitute 4 for k in 


Solving (b): x when y = 25.
Substitute 25 for y in 

Cross Multiply

Divide through by 25

Take positive square roots of both sides


Answer:
I think the most suitable answer is a/ Triangle ABC is ... = 3
Answer:
-6
Step-by-step explanation:
Hey there,
is 6, because 6² is 36 :). Because of "-" answer is -6.
<span>identity is subtraction property of equality
equation is x + 8 = 6
</span><span>
Substitution Property of Equality; x + 8 = 6
</span><span>
Take the equation x + 8 = 6.
subtract 8 from both sides using the subtraction property of equality
x + 8 - 8 = 6 - 8
simplify
x + 0 = -2
x = -2</span><span>
</span>