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shusha [124]
3 years ago
13

Multiply: (x + 3)(x – 4)

Mathematics
2 answers:
konstantin123 [22]3 years ago
3 0

Answer:

It is - x.

Step-by-step explanation:

When multiplied , the like terms will be - 4x and +3x , which when added , gives - x.

Alika [10]3 years ago
3 0
X+x=x2
X+-4=-4x
3;($&99
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The owner of a clothing store buys T-shirts for c dollars each and sells
leva [86]

Answer:

Idek c

Step-by-step explanation:

6 0
3 years ago
a box with a square base and open top must have a volume of 70304 c m 3 cm3 . we wish to find the dimensions of the box that min
Dmitriy789 [7]

The box should have base 52 cm by 52 cm and height 26 cm.

What is volume?

A three-dimensional space's occupied volume is measured. It is frequently expressed as a numerical value using SI-derived units, other imperial units, or US customary units. Volume definition and length definition are connected.

The Volume of a box with a square base x by x cm and height h cm is

V = x^2h

Since the surface area directly affects the amount of material used, we can reduce the amount of material by reducing the surface area.

The surface area of the box described is  A = x^2 + 4xh

We need A as a function of x alone, so we'll use the fact that

V = x^2h= 70304 cm^3

⇒ h = \frac{70304}{x^2}

So, the area becomes,

A = x^2+4x(\frac{70304}{x^2})\\ A = x^2 + \frac{281216}{x}

We want to minimize A, so

A' = 2x - \frac{281216}{x^2} =0\\\frac{2x^3-281216}{x^2}=0\\ {2x^3-281216} = 0\\x^3 - 140608=0\\x^3 = 140608\\x = 52

The second derivative test verifies that A has a minimum at this critical number:

A'' = 2+\frac{562432}{x^3}  which is positive at x = 52.

Now,

h = \frac{70304}{x^2}= \frac{70304}{(52)^2}=26

Hence, The box should have base 52 cm by 52 cm and height 26 cm.

To know more about volume, click on the link

brainly.com/question/463363

#SPJ4

8 0
2 years ago
How do I find x and y
Usimov [2.4K]
First you would have to find the third angle in the triangle which you would do by adding 63+61 and subtracting the resulting number from the total degrees in a triangle. From there, you would calculate x and y using the knowledge that angles on a line equal 180.
3 0
3 years ago
5y-3x=25<br> solve for y
pshichka [43]

Answer:

y=\frac{3}{5} x+5

Step-by-step explanation:

5y-3x=25\\\\5y-3x+3x=25+3x\\\\5y+0=3x+25\\\\5y=3x+25\\\\\frac{1}{5} (5y)=\frac{1}{5} (3x+25)\\\\y=\frac{1}{5}(3x)+\frac{1}{5}(25) \\\\y=\frac{3}{5}x+5

3 0
4 years ago
In the ordered pair below, which value represents the output of a function?<br> (1, 9) ?
guajiro [1.7K]

Answer:

9

Step-by-step explanation:

given an ordered pair (x, y )

Then x is the input and y the output

Given

(1, 9 )

Then y = 9 represents the output

8 0
3 years ago
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