3 years ago

5x^2 - 6x - 28 = 0 please help me do this

Mathematics

1 answer:

Yanka [14]3 years ago

4 0

Answer:

x= 3 5 + 1 5 √149 or x= 3 5 + −1 5 √149

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5. A fitness center introduces two offers. The first offer charges $27 per month plus $34 enrollment fee.

Step2247 [10]

Answer:

what are the statements? the second offer is cheaper, but im not sure what you are asking..

Step-by-step explanation:

8 0

3 years ago

Ivan purchased stock in a company at an initial price of $8 per share. The share value reached $18 after 10 days and then began

Butoxors [25]

The quadratic equation that best represents his model of the relationship between stock value and time is given by:

$y = -0.0976(x - 10)^2 + 18, x \geq 0$

The graph is given at the end of the answer.

<h3>What is the equation of a parabola given it’s vertex?</h3>

The equation of a quadratic function, of vertex (h,k), is given by:

$y = a(x - h)^2 + k$

In which a is the leading coefficient.

In this problem, the maximum value was a share value of $18 after 10 days, hence the vertex is:

(h,k) = (10,18).

Thus:

$y = a(x - 10)^2 + 18$

Since the initial price was of $8 per share, we have that:

$8 = a(0 - 10)^2 + 18$

$-82a = 8$

$a = -\frac{8}{82}$

$a = -0.0976$

Hence the equation is:

$y = -0.0976(x - 10)^2 + 18, x \geq 0$

At the end of the answer, the sketch of the graph is given.

More can be learned about quadratic equations at brainly.com/question/24737967

6 0

3 years ago

What is difference 6 1/4. And 5 1/2

Rama09 [41]

3/4 I believe since 6 1/4- 51/2 is 3/4

6 0

3 years ago

PLEASE HELP ME PLS I NEED IT

SOVA2 [1]

Answer:

X=17.9

Step-by-step explanation:

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3 years ago

The question is in the picture.

mafiozo [28]

It’s -1 plug in -7.

7 0

3 years ago