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3 years ago

Help me on what is meant by 2cm to represent 1unit on the graph and give me examples.

1 answer:

7 0

So it's a scale. On your graph, there should be units, or little squares made up of lines. For example, if you have a square that's one unit/line on each side, in real life it's going to be 2cm on each side. If you draw a square that's 4 lines/units on each side, it means that it's 8cm on each side, because that's 2cm for each little line.

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F(x) = 2x - 3 and f(x) = f'(x), find the value of x.

Salsk061 [2.6K]

Answer:

x=1

Step-by-step explanation:

According to your typed question,

f(x)=2x-3

Let f(x)=y

y=2x-3

Now,

Interchanging the positions of x and y

x=2y-3

x+3=2y

x+3/2=y

f'(x)=x+3/2

Then,

f(x)=f'(x)

2x-3=x+3/2

2(2x-3)=x+3

4x-3=x+3

4x-x=3+3

3x=3

x=3/3

x=1

According to your image question,

f(x)=x/2x-3

f(x)=f'(x)

Now,

Let y=f(x)

y=x/2x-3

y(2x-3)=x

2xy-3=x

2xy-x=3

x(2y-1)=3

2y-1=3x

2y=3x+1

y=3x+1/2

f'(x)=3x+1/2

Then,

f(x)=f'(x)

x/2x-3=3x+1/2

2x=6xsq+2x-9x+3

2x=6xsq+7x+3

solve for x ok

8 0

2 years ago

Help me solve this equation. Find f(x)-g(x)

mojhsa [17]

Answer:

- 2x³

Step-by-step explanation:

f(x) - g(x)

= $x^{\frac{1}{2} }$ - x - (2x³ - $x^{\frac{1}{2} }$ - x) ← distribute parenthesis by - 1

= $x^{\frac{1}{2} }$ - x - 2x³ + $x^{\frac{1}{2} }$ + x ← collect like terms )

= - 2x³

8 0

3 years ago

A landscape designer has to construct a rectangular flower bed with a perimeter of 100 feet and the maximum possible area. What

Alinara [238K]

9514 1404 393

Answer:

625 square feet

Step-by-step explanation:

The greatest area of a polygon with a given perimeter is that of a regular polygon. A regular rectangle is one that has all sides the same length -- a square. The side length of a square with 100 ft perimeter is 25 ft. The area of a square with such a side length is

A = (25 ft)² = 625 ft²

The maximum possible area is 625 ft².

In the attached, x is the length of one side. The area versus side length is plotted. The maximum is seen to be 625 ft² for a side length of 25 ft.

8 0

2 years ago

I WILL GIVE BRAINLIEST!!! PLS HELP!!!

uranmaximum [27]

Answer:b

Step-by-step explanation:you welcome and thank you

6 0

3 years ago

Will mark brainliest pleassse help someone

Morgarella [4.7K]

Check the picture below.

$\bf \textit{volume of a pyramid}\\\\ V=\cfrac{1}{3}Bh~~ \begin{cases} B=&area~of\\ &its~base\\ h=&height\\ \cline{1-2} B=&\stackrel{9\times 9}{81}\\ h=&10 \end{cases}\implies V=\cfrac{1}{3}(81)(10)\implies V=270$

6 0

3 years ago