What is the value of n so that the expression x^2 + 12x + n is a perfect square trinomial? (1 point)?
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Answer:
56
Step-by-step explanation:
Hey There!
so this is a parallelogram so opposite angles are congruent
So basically what i am saying is that angle P is congruent to angle R
So we need to solve for x
We know that angle P and angle Q are supplements meaning that they will add up to 180
so we setup the equation
step 1 combine like terms
now we have
180=11x-7
step 2 add 7 to each side
180+7=187
-7+7 cancels out
now we have
187=11x
step 2 divide each side by 11
187/11=17
x=17
now we plug in 17 to (3x+5) to get the value of angle R
17x3=51
51+5=56
therefore m∠R = 56
Distribute 1/2 to <span>(n – 4):
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Subtract (2n + 3):
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Your equation should now look like this:
</span>
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Combine like terms on both sides:
</span>
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Subtract 1/2n from both sides:
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Divide both sides by -5/2 to get n by itself:
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The value of n is 2.</span>
</span>
<span>
Subtract (2n + 3):
</span>
<span>
Your equation should now look like this:
</span>
<span>
Combine like terms on both sides:
</span>
<span>
Subtract 1/2n from both sides:
</span>
<span>
Divide both sides by -5/2 to get n by itself:
</span>
<span>
The value of n is 2.</span>