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tiny-mole [99]
3 years ago
5

What is the missing constant term in the perfect square that starts with x^2+6xx 2 +6xx, start superscript, 2, end superscript,

plus, 6, x ?
Mathematics
1 answer:
stira [4]3 years ago
7 0
For this case we have the following polynomial:
 x ^ 2 + 6x
 The missing value to complete the square is given by:
 x ^ 2 + 6x + (6/2) ^ 2
 Rewriting we have:
 x ^ 2 + 6x + (3) ^ 2
 x ^ 2 + 6x + 9
 Then, completing the square we have:
 (x + 3) ^ 2
 Answer:
 the missing constant term in the perfect square is:
 9
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The edges of a cube increase at a rate of 2 cm divided by s. How fast is the volume changing when the length of each edge is 40
Dmitry_Shevchenko [17]

Answer:

Step-by-step explanation:

Let the edge of the cube be a .

Given

\frac{da}{dt} = 2 cm/s

Volume V = a³

\frac{dV}{dt} = 3a^ 2\frac{da}{dt}

= 3a² x 2

= 6a²

If a = 40 cm

\frac{dV}{dt} = 6 \times 40\times40

= 9600 cm³/s .

5 0
3 years ago
I’m sorry I ain’t good at this math please help
otez555 [7]

The answer would be 2160 because v=l*w*h so 10*12*18 would equal 2160

4 0
3 years ago
If a rectangular piece of metal has 27.75 square inches what is the length and width?
svp [43]

We cannot get further information about the dimensions of the piece since the number of variables is greater than the number of equations.

<h3>What are the dimensions of a rectangular piece of metal?</h3>

By geometry we know that the area of the piece of metal is equal to the product of its length and width, then we must find two <em>real</em> numbers such that:

l · w = 27.75, where l, w > 0.

Unfortunately, we cannot get further information about the dimensions of the piece since the number of variables is greater than the number of equations. We need at least one equation to find an <em>unique</em> solution.

To learn more on rectangles: brainly.com/question/15019502

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4 0
2 years ago
If DA = 6 and MD = 4, what is the length of DK?
Leto [7]

Answer:

DK = 9

Step-by-step explanation:

In triangle AMD,

h² = p² + b²

or, h² = 6² + 4²

or, h²= 36 + 16

so, h² = 52

so, AM² = 52

Take x as reference angle,

cos²x = 16/52

Now,

In triangle, AMK,

Taking x as reference angle,

cos²x = b²/h²

cos²x = AM²/MK²

or, cos²x = 52/MK²

Now,

cos²x = 16/52 = 52/MK²

or,

16/52 = 52/MK²

or, 16MK² = 2704

or, MK² = 2704/16

or, MK² = 169

so, MK = 13

Now,

DK = MK - MD

or, DK = 13 - 4

so, DK = 9

3 0
2 years ago
What is the missing term in the quadratic expression below?<br><br> (2x-3)(x-4)=2x^2+____ -12
cupoosta [38]

Answer:

ok

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
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