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3 years ago

Please answer this if you know it ( you only have to answer the problem it’s asking)

Mathematics

1 answer:

neonofarm [45]3 years ago

4 0

9514 1404 393

Answer:

vertex: (-2, 4)

Step-by-step explanation:

Use your regression calculator to find the parameters of the quadratic model.

The vertex form equation is ...

y = -3(x +2)^2 +4

so the vertex is (-2, 4).

The standard form equation is the expansion of the above:

y = -3x^2 -12x -8

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Find all the possible of x for which of the below is true:

Marrrta [24]

Answer:

x = $\frac{1}{2}$ , x = 1

Step-by-step explanation:

Given

$\frac{2x}{x+3}$ + $\frac{3}{x-3}$ = $\frac{8}{x^2-9}$ ← denominator is a difference of squares

$\frac{2x}{x+3}$ + $\frac{3}{x-3}$ = $\frac{8}{(x+3)(x-3)}$

Multiply through by (x + 3)(x - 3) to clear the fractions

2x(x - 3) + 3(x + 3) = 8 ← distribute left side and simplify

2x² - 6x + 3x + 9 = 8

2x² - 3x + 9 = 8 ( subtract 8 from both sides )

2x² - 3x + 1 = 0 ← in standard form

(2x - 1)(x - 1) = 0 ← in factored form

Equate each factor to zero and solve for x

2x - 1 = 0 ⇒ 2x = 1 ⇒ x = $\frac{1}{2}$

x - 1 = 0 ⇒ x = 1

4 0

3 years ago

What is the range of possible values for x?

Rzqust [24]

Answer:

0° < x < 17°

Step-by-step explanation:

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5 0

3 years ago

Which linear function has the greater rate of change Y= 8x+ 3

Ad libitum [116K]

17 bc I did it trust me pls

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3 years ago

A pizza store office three special pizza special number one is a square pizza with a side length of 14.8 inches that cost is $15

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Answer:

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Step-by-step explanation:

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3 years ago

Write an equation in slope-intercept form for the line that passes through (1,9) and (3,5).

kozerog [31]

Answer:

The answer to your question is y = -2x + 11

Step-by-step explanation:

A (1, 9)

B (3, 5)

- Find the slope

$m = \frac{y2 - y1}{x2 - x1}$

$m = \frac{5 - 9}{3 - 1}$

$m = \frac{-4}{2}$

m = - 2

- Find the line equation

y - y1 = m (x - x1)

y - 5 = -2(x - 3)

y - 5 = -2x + 6

y = -2x + 6 + 5

y = -2x + 11

8 0

3 years ago

Read 2 more answers