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bulgar [2K]
2 years ago
10

I NEED MENNTAL HAELP

Mathematics
1 answer:
vekshin12 years ago
6 0

Answer:

Ummm Lilly Are you the one that I was jus talkin too

Step-by-step explanation:

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Dexter has 83 tiles left over from tiling his bathroom floor and he would like to use them to tile the front entrance of his hou
creativ13 [48]

Answer: [0, 396]

Step-by-step explanation:

The domain is the acceptable values of x in the function.  In this case, x = t, the number of tiles.  If you think about it, the minimum number of tiles is 0 (you can't have a negative number of tiles), and the maximum number of tiles is 44 (you only have 44 tiles).  So, the domain for this function is from 0 to 44.

0 to 44 written in interval notation is [0,44].

The range is the acceptable values of y in the function.  In this case, y = A, the area given.  A(t) = 9t, so you can use the acceptable values of t to get the range.  Again, the minimum area is 0 because you can't have negative area. To find the maximum area, plug in the maximum number of tiles: 9.

A(t) = 9t

A = 9(44)

A = 396

With the maximum number of tiles, 44, the area you get is 396 cm².  Therefore, the acceptable values of A are from 0 to 396.

0 to 396 written in interval notation is [0, 396].

4 0
3 years ago
An expression that equivalent to 12x + 8
enot [183]

Answer:

4 (3 x + 2)

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
A basketball player has already scored 56 points in a game. The team record for points in a game is 72. Which equation would all
maks197457 [2]

A because if you subtract 56 from both sides, then x would show you what equals the tied record

8 0
3 years ago
PLEASE HELP ME ASAP!!!! My entire grade depends on these questions and I need to show the work that go me there
Marizza181 [45]

Answer:

Answers are in bold

Step-by-step explanation:

<u></u>

<u>Part 1A</u>

Use the Zero Product Property to find the x-intercepts:

0=-(x+4)(x-1)

0=(x+4)(x-1)

0=(x+4)

-4=x

x=-4

0=(x-1)

1=x

x=1

So the x-intercepts are x=-4 and x=1 which is also (-4,0) and (1,0)

For the y-intercepts, plug in x=0:

f(x)=-(0+4)(0-1)

f(x)=(-4)(-1)

f(x)=4

So the y-intercept is y=4 which is also (0,4)

<u>Part 1B</u>

In general, the axis of symmetry is equal to x=h in the equation y=(x-h)^2+k

For a parabola, the axis of symmetry is equal to x=-b/2a, so we expand the given equation and then plug in the values of "a" and "b" to get the axis of symmetry:

f(x)=-(x+4)(x-1)

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

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

So now we know a=-1 and b=-3, therefore we can plug them in:

x=-b/2a

x=-(-3)/2(-1)

x=3/-2

x=-3/2

x=-1.5

So the equation of the axis of symmetry is x=-1.5

<u>Part 1C</u>

We'll use the equation x=-b/2a to get the x-coordinate for the vertex (which we already know is x=-1.5), then plug in that value of x in the original equation to get the y-coordinate for the vertex:

f(x)=-(-1.5+4)(-1.5+1)

f(x)=-(2.5)(-0.5)

f(x)=-(-1.25)

f(x)=1.25 <-- y-coordinate

So the coordinates of the vertex are (-1.5,1.25)

<u>Part 1D</u>

See the image below

I'll let someone else do the last 4 questions as I am unable to answer them.

<u></u>

8 0
3 years ago
Help pls!<br> Which rational function has zeros at x = -1 and x = 6 ?
bagirrra123 [75]

Answer:

f(x) = \frac{x^{2} -5x-6}{x^{2} -4}

Step-by-step explanation:

Let's factorize the 1st option :

⇒ f(x) = \frac{x^{2} -5x-6}{x^{2} -4}

⇒ f(x) = \frac{x^{2}+x-6x-6 }{(x+2)(x-2)}

⇒ f(x) = \frac{(x+1)(x-6)}{(x+2)(x-2)}

===============================================================

Finding the zeros :

⇒ Factors of numerator should be equated to 0

  1. x + 1 = 0 ⇒ x = -1
  2. x - 6 = 0 ⇒ x = 6

=============================================================

Solution :

f(x) = \frac{x^{2} -5x-6}{x^{2} -4}

6 0
2 years ago
Read 2 more answers
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