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babunello [35]
4 years ago
9

Review the table of values for function j(x) = StartFraction x squared minus 7 x minus 8 Over x squared minus 4 x minus 32.

Mathematics
2 answers:
Natasha2012 [34]4 years ago
8 0

Answer:

.75

Step-by-step explanation:

Unit Test

MaRussiya [10]4 years ago
3 0

Answer:

B: 0.75

Step-by-step explanation:

Edge

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. Use the quadratic formula to solve each quadratic real equation. Round
Liono4ka [1.6K]

Answer:

A. No real solution

B. 5 and -1.5

C. 5.5

Step-by-step explanation:

The quadratic formula is:

\begin{array}{*{20}c} {\frac{{ - b \pm \sqrt {b^2 - 4ac} }}{{2a}}} \end{array}, with a being the x² term, b being the x term, and c being the constant.

Let's solve for a.

\begin{array}{*{20}c} {\frac{{ 5 \pm \sqrt {5^2 - 4\cdot1\cdot11} }}{{2\cdot1}}} \end{array}

\begin{array}{*{20}c} {\frac{{ 5 \pm \sqrt {25 - 44} }}{{2}}} \end{array}

\begin{array}{*{20}c} {\frac{{ 5 \pm \sqrt {-19} }}{{2}}} \end{array}

We can't take the square root of a negative number, so A has no real solution.

Let's do B now.

\begin{array}{*{20}c} {\frac{{ 7 \pm \sqrt {7^2 - 4\cdot-2\cdot15} }}{{2\cdot-2}}} \end{array}

\begin{array}{*{20}c} {\frac{{ 7 \pm \sqrt {49 + 120} }}{{-4}}} \end{array}

\begin{array}{*{20}c} {\frac{{ 7 \pm \sqrt {169} }}{{-4}}} \end{array}

\begin{array}{*{20}c} {\frac{{ 7 \pm 13 }}{{-4}}} \end{array}

\frac{7+13}{4} = 5\\\frac{7-13}{4}=-1.5

So B has two solutions of 5 and -1.5.

Now to C!

\begin{array}{*{20}c} {\frac{{ -(-44) \pm \sqrt {-44^2 - 4\cdot4\cdot121} }}{{2\cdot4}}} \end{array}

\begin{array}{*{20}c} {\frac{{ 44 \pm \sqrt {1936 - 1936} }}{{8}}} \end{array}

\begin{array}{*{20}c} {\frac{{ 44 \pm 0}}{{8}}} \end{array}

\frac{44}{8} = 5.5

So c has one solution: 5.5

Hope this helped (and I'm sorry I'm late!)

4 0
3 years ago
Completa la tabla.
Aleks [24]

La tabla completa es:

Numero      opuesto        valor absoluto.

  -5                   5                        5

   10                  -10                     10

  -56                 56                      56

  34                  -34                     34

<h3>¿Como completar la tabla?</h3>

En este caso tenemos la tabla:

Numero      opuesto        valor absoluto.

  -5

   10

  -56

  34

Para completar la tabla debemos encontrar los opuestos de esos numeros, el opuesto de cualquier numero real es un número con el mismo valor absoluto pero distinto signo, entonces podemos completar la tabla:

Numero      opuesto        valor absoluto.

  -5                   5

   10                  -10

  -56                 56

  34                  -34

Ahora debemos encontrar los valores absolutos, eso es el mismo número pero en forma positiva, completando eso obtendremos:

Numero      opuesto        valor absoluto.

  -5                   5                        5

   10                  -10                     10

  -56                 56                      56

  34                  -34                     34

Sí quieres aprender más sobre valor absoluto:

brainly.com/question/1782403

#SPJ1

6 0
1 year ago
A given line has the equation 10x -2.2y What is the equation, in slope-intercept form, of the line that is parallel to given lin
Andre45 [30]
10x + 2y = -2

2y = -10x - 2

y = -(10/2)x - 2/2

y = -5x  - 1    y = mx + c,   slope m = -5.

If it is parallel, then the slope of the second line ought to be -5 as well.

So you should fill -5 in the bracket.
3 0
4 years ago
Solve for y. 4/9(y-3)=g
yan [13]
4/9(y-3) = g....multiply both sides by 9/4
9/4(4/9)y-3 = 9/4g
y - 3 = 9/4g....now add 3 to both sides
y - 3 + 3 = 9/4g + 3
y = 9/4g + 3
6 0
3 years ago
1<br> Work out the sizes of the unknown angles.<br> a<br> 66°<br> 63<br> 50°<br> 1090
Stels [109]

Answer:

x = 110°

Step-by-step explanation:

the sum of the exterior angles of a polygon = 360°

the exterior angle to 109° is

180° - 109° = 71° ( adjacent angles on a straight line )

then summing the exterior angles and equating to 360°

63° + 66° + 50° + x + 71° = 360° , that is

250° + x = 360° ( subtract 250° from both sides )

x = 110°

5 0
2 years ago
Read 2 more answers
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