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Vadim26 [7]
3 years ago
15

Is each expression equivalent to 2x^2 - 50?

Mathematics
1 answer:
puteri [66]3 years ago
3 0
We would first determine how to solve this, and then from there, we would then see whether the following answer would be the correct answers.

2x^2 -  50 \\ \\ Pull \ out \ like \ factors : \\ 

   2x^2 - 50  =   2 * (x^2 - 25) \\ \\    Factoring: \\    x^2 - 25 \\ \\ (your \  answer)...\\ \\   2 * (x + 5) * (x - 5)

Now, we can determine whether the say "yes" or "no" to the following answers.

<span>a 2(x-5)(x+5) = YES
b -2(x+5)(x+5) = NO
c -2(5-x)(x+5) = NO</span>
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The ordered pair is (-2, -3)

Step-by-step explanation:

  • Step 1: To find whether an ordered pair is a solution, substitute values of x and y and see whether it satisfies the equation.

(-3, -2) ⇒ 7 × -3 - 5 × -2 = -21 + 10 = -11 ≠ 1

(-2, -3) ⇒ 7 × -2 - 5 × -3 = -14 + 15 = 1

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So the ordered pair is (-2, -3)

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During a radio contest, $50 is added to the prize money each time a caller answers the contest question incorrectly. the first c
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Answer:

6.81m

Step-by-step explanation:

Using the formula for finding the length of am arc

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Given theta = 315.7°

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