Answer:
a) 16
b) 100
c) 64
d) 
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Step-by-step explanation:
Perfect square trinomial:
A perfect square trinomial has the following format:
a.
x² – 8x
So 2a = 8, a = 4. Then
The perfect square trinomial is 
b. x2 + 20x +
2a = 20, so a = 10
The perfect square trinomial is 
C.
x² – 16x +
2a = -16, so a = -8.
The perfect square trinomial is 
d. x2 + 9x +
, so 
The perfect square trinomial is 
[/tex]
Answer:
b
Step-by-step explanation:
step 1
(x - 4) • (x + 5) = 0
STEP
:
A product of several terms equals zero.
When a product of two or more terms equals zero, then at least one of the terms must be zero.
We shall now solve each term = 0 separately
Solving a Single Variable Equation:
2.2 Solve : x-4 = 0
Add 4 to both sides of the equation :
x = 4
Solving a Single Variable Equation:
2.3 Solve : x+5 = 0
Subtract 5 from both sides of the equation :
x = -5
.
Answer:
31.06
Step-by-step explanation:
155.3/5
31.06
I solved the problem, answer is 11.4% as 2500-11.4% is 2215.
