The value of c is 81/64 for the expression a perfect square trinomial.
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What is an Expression?</h3>
An expression can be defined as a mathematical statement that consists of variables, constants and mathematical operators simultaneously.
It is given that an expression
x² +9/4x +c is a perfect square polynomial
c =?
(a+b)² = a² +2ab+b²
2ab = 9/4
b = 9/8
c = b² = 81/64
Therefore the value of c is 81/64 for the expression a perfect square trinomial.
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Answer:
20, 70
Step-by-step explanation:
9x=90
x=10
angles are 20 and 70
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Answer:
y=-2x+8
Step-by-step explanation:
Slope=-2
Y intercept= 8