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Goshia [24]
2 years ago
14

Need answer this urgent and fast

Mathematics
1 answer:
Karo-lina-s [1.5K]2 years ago
5 0

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

180=3x+5+8x-12\\

step 1 combine like terms

3x+8x=11x\\5-12=-7

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

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<u>Answer</u>

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<u>Explanation</u>

(2m)/(2m+3)-(2m)/(2m-3)=1

Simplifying the left hand first

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                                        (4m²-6m-4m²-6m)/(4m²-9)

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Now this equet to 1

(-12m) / (4m²-9) = 1

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4m²+ 12m -9 =0 ⇒⇒⇒ This is a quadratic equation that has 2 real solutions.

4m²+ 12m -9 =0

m² + 3m + (3/2)²= 9/4 + 9/4

(m + 3/2)² = 18/4

m = √18/2 - 3/2                or m = -√18/2 - 3/2

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So we can say that the equation has NO extraneous solutions.

Answer = 0

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Step-by-step explanation:

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So instead of writing:

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Then in this case the correct option is C.

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