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Anna35 [415]
3 years ago
13

When is it most appropriate to use the completing the square method to solve a quadratic equation?

Mathematics
1 answer:
mash [69]3 years ago
4 0

Answer:

Don't forget to include a ± sign in your equation once you have taken the square root. Next, if the coefficient of the squared term is 1 and the coefficient of the linear (middle) term is even, completing the square is a good method to use. Finally, the quadratic formula will work on any quadratic equation.

Step-by-step explanation:

x² + 4x = 15 can be solved best using the completing the square method.

2x(x−3)=0 can be best solved using the zero product property.

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I need this answer asap
densk [106]

Answer:

16 x 6 divided by 2 is 48

First add the two bases together whenever you're trying to find the area of a trapezoid then multiply it by the height and multiply by it by 1/2 (which basically you divide by 2).

7 0
2 years ago
A function has a y-intercept of -6 and x-intercepts at (2,0) and (6,0). Which graph represents this function?
LuckyWell [14K]

Answer: I'm guessing it would be a parabola, with the line going through -6 on the y-axis and passing through 2 and 6 on the x-axis, but we cannot see any answers, so therefore we can't answer it accurately.

Step-by-step explanation:

3 0
2 years ago
Sophie gets an allowance of $15.00 each month plus an extra $2.00 for each chore she completes around the house. Which of the fo
Alex Ar [27]

Answer:

Linear equation

Step-by-step explanation:

f(x) = 2x + 15

Linear because constant increase

6 0
2 years ago
Find the value of x in the parallelogram.
yuradex [85]

Answer:

75

Step-by-step explanation:

Since the two angles are on the same side of the parallelogram, they're supplementary.

x + (2x - 45) = 180

3x - 45 = 180

3x = 225

x = 75

6 0
3 years ago
A regular polygon has an interior angle of approximately 158.8°.
Step2247 [10]

Answer:

  • 17 sides

Step-by-step explanation:

<u>Property of regular polygons:</u>

  • Sum of Interior Angles = (n−2) × 180°, where n is number of sides

<u>In our case we have:</u>

  • 158.8×n = (n - 2)×180
  • 180n - 158.8n = 360
  • 21.2n = 360
  • n = 360/21.2
  • n = 17
5 0
3 years ago
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