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sergey [27]
3 years ago
13

Please help am stuck on this

Mathematics
2 answers:
Marina86 [1]3 years ago
8 0

Answer:

-3,-2,-1,0,1,2,3,4,5

kobusy [5.1K]3 years ago
8 0

Answer:

Step-by-step explanation:

Builder notation :

X = {x ∈ Z : -4 < x ≤ 5}

Roster Notation :

X = { -3, -2, -1, 0, 1 , 2 , 3 , 4 , 5}

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son4ous [18]

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2 years ago
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Samantha is buying carpet for her family​ room, which is 10 yards by 13 yards. the carpeting is sold in square meters. how many
Illusion [34]
1 yard ≈ 0.9144 m

Therefore,
10 yards = 10*0.9144 m = 9.144 m
13 yards = 13*0.9144 m = 11.8872 m

Area to be covered = 9.144*11.8872 = 108.697 m^2

Therefore, Samantha will require approximately 109 m^2 of carpet.
5 0
3 years ago
Find the indefinite integral. (use c for the constant of integration.) sin xcos5 x dx
Alik [6]
:) Well, I dunno about anyone else but this question makes my head spin!

6 0
3 years ago
We are going to fence in a rectangular field. If we look at the field from above the cost of the vertical sides are $10/f t, the
Brut [27]

Answer:

Dimensions are 350/9 ft and 17.5 ft

Step-by-step explanation:

We are given the cost per ft of all the 4 sides. Let the horizontal be x and the vertical be y.

Now, we will set up the constraint and equation that we are being asked to maximize.

Thus;

700 = 10y + 10y + 7x + 2x

700 = 20y + 9x

Maiking y the subject, we have;

y = (700 - 9x)/20

y = 35 - 9x/20

Now,area of a rectangle is: A = xy

Thus, A = x(35 - 9x/20))

A = 35x - 9x²/20

We can get the critical points by finding the derivatives and Equating to zero

Thus;

dA/dx = 35 - 0.9x

At dA/dx = 0,we have; x = 350/9

At d²A/dx², we have;

d²A/dx² = -0.9

This is negative, thus we will disregard and use the one gotten from the first derivative.

Thus, we will use x = 350/9 ft

Plugging this into the equation y = 35 - 9x/20, we have;

y = 35 - ((9 × 350/9)/20)

y = 17.5 ft

7 0
3 years ago
If f(x)=2x-4, what would be the answer if f(3)-1??
Vinil7 [7]

Answer:

1

Step-by-step explanation:

We have the function

f(x) = 2x - 4

and we want to know the value of f(3) - 1.

The first step is to find f(3) ; we can subtract 1 from it at the end! But what does f(3) mean?

Basically, we're saying <em>"what is the value of the function when </em>x = 3<em> ?"</em>

So, we simply replace x with 3 in the function, and we get:

f(3) = 2\times 3 - 4 = 2.

Finally, we subtract 1 to find f(3) - 1 = 1.

3 0
2 years ago
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