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jeka57 [31]
3 years ago
5

X² +10x+3=0how do I slove it with the quadratic formula?​

Mathematics
2 answers:
puteri [66]3 years ago
7 0

Answer:

Step-by-step explanation:

Naddik [55]3 years ago
4 0

The equation is already in standard form [ ax² + bx + c = y ] so we can find the values of each variable.

a = 1

b = 10

c = 3

y = 0

Quadratic formula: x = \frac{-b+-\sqrt{b^2-4ac} }{2a}

Solve using the formula:

x=\frac{-10+-\sqrt{10^2-4(1)(3)} }{2(1)}

x=\frac{-10+-\sqrt{100 - 12} }{2}

x=\frac{-10+-\sqrt{88} }{2}

x=-5+-\sqrt{22}

Therefore, the answer is [ x = -5 ± √22 ]

Best of Luck!

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What is the answer need it
denis-greek [22]

Answer:

\frac{7}{10} |

Step-by-step explanation:

STEP 1:

2/3 + 7/10 = ?

The fractions have unlike denominators. First, find the Least Common Denominator and rewrite the fractions with the common denominator.

LCD(2/3, 7/10) = 30

Multiply both the numerator and denominator of each fraction by the number that makes its denominator equal the LCD. This is basically multiplying each fraction by 1.

(\frac{2}{3} * \frac{10}{10}) + (\frac{7}{10} * \frac{3}{3}) = ?

Complete the multiplication and the equation becomes

\frac{20}{30} + \frac{21}{30}

The two fractions now have like denominators so you can add the numerators.

Then:

\frac{20+21}{30} = \frac{41}{30}

This fraction cannot be reduced.

The fraction 41/30

is the same as

41 divided by 30

Convert to a mixed number using

long division for 41 ÷ 30 = 1R11, so

41/30 = 1 11/30

Therefore:

2/3+7/10= 1 11/30

STEP 2:

41/30 + -2/3

The fractions have unlike denominators. First, find the Least Common Denominator and rewrite the fractions with the common denominator.

LCD(41/30, -2/3) = 30

Multiply both the numerator and denominator of each fraction by the number that makes its denominator equal the LCD. This is basically multiplying each fraction by 1.

(\frac{41}{30} *\frac{1}{1} ) + ( \frac{-2}{3} * \frac{10}{10} )

The two fractions now have like denominators so you can add the numerators.

Then:

\frac{41+-20}{30} = \frac{21}{30}

This fraction can be reduced by dividing both the numerator and denominator by the Greatest Common Factor of 21 and 30 using

GCF(21,30) = 3

\frac{21/3}{30/3} =\frac{7}{10}

Therefore:

\frac{41}{30} + \frac{-2}{3} =\frac{7}{10}|

8 0
3 years ago
If anyone could just look at my recent question pls its super easy its just simplyfing
vichka [17]

Answer: K

Step-by-step explanation:

Ill do it

5 0
3 years ago
Use the number line to add the fractions.<br><br> help plz look at picture
mr_godi [17]

Answer:

\frac{1}{6}

Step-by-step explanation:

- \frac{1}{2}  + \frac{2}{3}  =   - \frac{3}{6}  + \frac{4}{6} \\\\ - \frac{3}{6}  + \frac{4}{6}  = \frac{1}{6}

5 0
3 years ago
On a coordinate plane, a curve starts in quadrant 2, curves up to the y-axis, and then decreases into quadrant 1.
N76 [4]

Answer:

Step-by-step explanation:

continuous

increasing then decreasing

3 0
4 years ago
Read 2 more answers
Given: m&lt;FSH = (5x-8)°, m&lt;NSF=(9x-12)° and m&lt;NSH=(10x+20)°.
Ivan

Answer:

The answer to your question is ∠FSH = 42°; ∠NSF = 78°; ∠NSH = 120°

Step-by-step explanation:

Data

∠ FSH = 5x - 8

∠NSF = 9x - 12

∠NSH = 10x + 20

Process

1.- Write a equation to solve this problem

          ∠NSH = ∠NSF + ∠FSH

2.- Substitute values

         10x + 20 = 9x - 12 + 5x - 8

3.- Solve for x

         10 x - 9x - 5x = - 12 - 8 - 20

         10x - 14x = - 12 - 28

                 - 4x = - 40

                     x = -40 / -4

                    x = 10

4.- Find the measure of all three angles

    ∠FSH = 5(10) - 8

               = 50 - 8

               = 42°

    ∠NSF = 9x - 12

               = 9(10) - 12

               = 90 - 12

               = 78°

∠NSH = 10(10) + 20

          = 100 + 20

          = 120°

5.- Check the answers

              120°   = 78°  + 42°

              120° = 120°

The answers are correct

8 0
3 years ago
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