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bearhunter [10]
2 years ago
9

I think im right can anyone confirm that but if im not please tell me

Mathematics
2 answers:
EleoNora [17]2 years ago
6 0

Answer:

Step-by-step explanation:

f(x) = x²-8x-20

a= 1

a >0 so...

-parabola opens up

-vertex is a minumum

Minimum because parabola opens up !

____ [38]2 years ago
4 0

Answer:

Your answer is incorrect. Answer choice is B: Minimum because the parabola opens up.

Step-by-step explanation:

You almost got it right, it is minimum, but the parabola opens up.

A you can see the minimum is plotted at the spaces (4, -36)

The parabola is opening upwards.

Hope this helps please mark brainliest :)

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PLEASE HELP, I WILL UP POINTS AND VOTE BRAINLIEST! DONT MAKE ME WASTE MY 88 POINTS.
Allushta [10]

Answer:

Ok im  using a standered form calculator:

1. 9/7x + 1/7 = -8

2. y = -6/5x - 3 =  -11

3. y = 1/3x - 2 = -10

Step-by-step explanation:

I will be glad to help more

6 0
3 years ago
What is the slope of the line that passes through the points (9,4) and (9,-5)?
jeka94

Answer:

undefined

Step-by-step explanation:

4- -5/9-9

9/0

undefined

6 0
3 years ago
Subtract (6a^2+3a) - (4a^2 + 2a)
Alexus [3.1K]

Answer:

2a² + a   (   or a(2a+1)   )

Step-by-step explanation:

(6a²+3a) - (4a² + 2a)  (expand parentheses)

= 6a²+3a - 4a² - 2a   (group like terms)

= 6a²- 4a²+3a- 2a

= 2a² + a

= a(2a+1)

7 0
3 years ago
Read 2 more answers
I need it rnnn pleaseee
xxMikexx [17]

Answer:

see explanation

Step-by-step explanation:

Calculate the slope m using the slope formula

m = \frac{y_{2}-y_{1}  }{x_{2}-x_{1}  }

with (x₁, y₁ ) = (8, - 3) and (x₂, y₂ ) = (2, 6)

m = \frac{6+3}{2-8} = \frac{9}{-6} = - \frac{3}{2}

------------------------------------------

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

Given

y = 5 - 2x , that is

y = - 2x + 5 ← in slope- intercept form

with slope m = - 2

3 0
3 years ago
An open box of maximum volume is to be made from a square piece of material 24 cm on a side by cutting equal squares from the co
mr Goodwill [35]

Answer:

V = x(24 - x)^2 cm^3.

Domain = (0, 24).

Step-by-step explanation:

a. Let the lengths of the sides of the squares be x cm.

Then the lengths of the sides of the base of the box will be  (24 - 2x) cm.

The height of the box will be x cm.

So the required volume

= height * area of base

So V = x(24 - x)^2

b. The domain of this function is (0, 24).

5 0
2 years ago
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