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GarryVolchara [31]
3 years ago
15

Help help help pls pls​

Mathematics
1 answer:
agasfer [191]3 years ago
8 0

Answer:

  C.  {2.4, 4.8, 6.3, 8.8}

Step-by-step explanation:

You only need to find the first domain value to make the appropriate answer selection.

  14.1 = 7x -2.7

  16.8 = 7x . . . . . . add 2.7

  2.4 = x . . . . . . . . divide by 7

The appropriate choice is ...

  C.  {2.4, 4.8, 6.3, 8.8}

_____

In the attachment, we have applied the same "solve for x" steps to each of the range values, confirming our answer choice.

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38. For the following exercises, sketch a line with the given features.
zhannawk [14.2K]

Answer:

see image

Step-by-step explanation:

The x-intercept is the point where the line crosses the x-axis (horizontal, left and right line with numbers, arrows at both ends, usually marked x at the right end)

The y-intercept is where your line crosses the y-axis (vertical, up-and-down line with numbers, arrows at the ends, usually marked y at the top)

Two points determine a line.

Draw a line through the two points given. See image.

3 0
2 years ago
Identify the solution <br> Answer choices<br> 1. 0,3<br> 2. 3, -2<br> 3. 4,2<br> 4 -2,3
Gennadij [26K]

Answer:

2) (3,-2)

Step-by-step explanation:

the solution is where the lines intersect. they intersect at one point because this function is linear. they intersect at the point (3,-2)

5 0
2 years ago
Lol help anyone?PLEASE !!
Savatey [412]

Answer:

B: 1/5 = 4/x

Step-by-step explanation:

1cm = 5km

4cm = 20km

5 0
2 years ago
Read 2 more answers
Find the volume of a sphere with a surface area of 576 in.
Kitty [74]

Answer:

Since we have given that

Surface area of sphere = 576 pi cm. sq.

As we know the formula,

Surface area of sphere is given by

So, the volume of a sphere would be

Hence, the required volume is 7241.14 cm³.

Step-by-step explanation:

4 0
3 years ago
Using differential calculus, maximize the volume of a box made of cardboard (top is open) as shown in Figure A. 15, subject to t
lana [24]

The maximum volume of the box is 40√(10/27) cu in.

Here we see that volume is to be maximized

The surface area of the box is 40 sq in

Since the top lid is open, the surface area will be

lb + 2lh + 2bh = 40

Now, the length is equal to the breadth.

Let them be x in

Hence,

x² + 2xh + 2xh = 40

or, 4xh = 40 - x²

or, h = 10/x - x/4

Let f(x) = volume of the box

= lbh

Hence,

f(x) = x²(10/x - x/4)

= 10x - x³/4

differentiating with respect to x and equating it to 0 gives us

f'(x) = 10 - 3x²/4 = 0

or, 3x²/4 = 10

or, x² = 40/3

Hence x will be equal to 2√(10/3)

Now to check whether this value of x will give us the max volume, we will find

f"(2√(10/3))

f"(x) = -3x/2

hence,

f"(2√(10/3)) = -3√(10/3)

Since the above value is negative, volume is maximum for x = 2√(10/3)

Hence volume

= 10 X 2√(10/3)  -  [2√(10/3)]³/4

= 2√(10/3) [10 - 10/3]

= 2√(10/3) X 20/3

= 40√(10/27) cu in

To learn more about Maximization visit

brainly.com/question/14682292

#SPJ4

Complete Question

(Image Attached)

3 0
1 year ago
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