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Paul [167]
3 years ago
9

Match each quadratic equation with the best way to solve it.

Mathematics
1 answer:
Blizzard [7]3 years ago
7 0

Answer:

5x^2 + 12x -3 =0 ---------> solve by quadratic formula

x^2 -4x = 8          ----------> solve by completing the square

4x^2 -25 = 0        ----------> solve by square root method

x^2-5x+ 6 = 0       -----------> solve by factoring

Step-by-step explanation:

1. 5x^2 + 12x -3 =0

The best way to solve this equation is quadratic formula as all the terms in the equation have coefficients it will be convenient to solve it through quadratic formula.

2. x^2 -4x = 8

The best way to solve this equation is by completing the square as the factors cannot be made directly.

3. 4x^2 -25 = 0

the best way to solve this equation is to solve by square root method as the 25 and 4 are perfect squares.

4. x^2-5x+ 6 = 0

The best way to solve this equation is to solve by factoring as it can clearly be seen that it is convenient to make factors ..

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I would appreciate the help on all of these :)
Maurinko [17]

Answer:

Pythagoras theorem states that c²=a²+b²

14²=12²+x²

14²-12²=x²

196-144=x²

52=x²

√52=√x²

7.2111025509279785=x

rounded up to the nearest hundredth=7.21

3 0
3 years ago
Read 2 more answers
Hi, I need help with this question.
elena-14-01-66 [18.8K]

Answer:

  • 135 steps

Step-by-step explanation:

<u>Each member marches:</u>

  • 50 + 40 = 90 yards

<u>Convert this to feet:</u>

  • 1 yard = 3 feet
  • 90 yards = 3*90 feet = 270 feet

<u>Find the number of steps:</u>

  • 270/2 = 135 steps
7 0
2 years ago
Read 2 more answers
2 wholes and 3/12 + 3/? = 2 wholes and 5/8 .what is the missing number ?
Sladkaya [172]
Basically you know that the 2 wholes from both sides cancel out.

Set up the equation, 5/8 = 3/12 + 3/x

3/x =  5/8 - 3/12

Set them to have a common denominator, 3/x = 15/24 - 6/24

3/x = 9/24

Simplify 9/24 and you will get 3/8

3/x = 3/8

Obviously this means x = 8


6 0
3 years ago
What is rotational symmetry
Alisiya [41]
<span>A shape has Rotational Symmetry when it still looks the same after a rotation.</span>
4 0
3 years ago
How do you simplify 19/228
Brilliant_brown [7]

you find what they both divide by and then divide each one and then you keep doing that until you cant no more

3 0
3 years ago
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