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Anit [1.1K]
3 years ago
12

Solve for the value of k. how? how can I solve it​

Mathematics
1 answer:
Ahat [919]3 years ago
4 0

Answer:

6

Step-by-step explanation:

The total of all the angles must be 180, since there is a straight line. We already know the 40 degree angle and the 90 degree angle, meaning that the remaining angle must be equal to 180 - 90 - 40, which is 50 degrees. Therefore, 50 = 7k + 8. 7k = 50-8 = 42, and k = 6.

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Answer:

Option 1: -10d⁴ + 17d²s - 6s²

General Formulas and Concepts:

<u>Algebra I</u>

  • Terms/Coefficients
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Step-by-step explanation:

<u>Step 1: Define</u>

<em>Identify</em>

(-2d² + s)(5d² - 6s)

<u>Step 2: Expand</u>

  1. FOIL:                                                                                                                  -10d⁴ + 12d²s + 5d²s - 6s²
  2. Combine like terms:                                                                                         -10d⁴ + 17d²s - 6s²
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All of them: 340 + 120 + 160 + 300 = 920

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4 years ago
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Aleksandr [31]

Answer:

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Step-by-step explanation:

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