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3 years ago

What is 71/5 written as a percent

Mathematics

1 answer:

ratelena [41]3 years ago

3 0

Percent (%) = per 100

7 1/5 = 36/5 = 720/100 = 720%

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I need help going through the steps of a problem please tell steps and not just answer

mezya [45]

Answer:

x = 5/7

Step-by-step explanation:

4 (0.25 - 2) = x - 0.75 (16 - 8x)

1 - 8 = x - 12 + 6x

1 - 8 + 12 = x + 6x

5 = 7x

5/7 = x

4 0

3 years ago

What is the value of \dfrac{d}{dx}\left(\dfrac{2x+3}{3x^2-4}\right) dx d ( 3x 2 −4 2x+3 )start fraction, d, divided by, d, x

stellarik [79]

Answer:

Step-by-step explanation:

We are asked to find the value of expression $\frac{d}{dx}(\frac{2x+3}{3x^2-4})$ at $x=-1$ .

First of all, we will find the derivative of the given expression using "Quotient Rule of Derivatives" as shown below:

$(\frac{f(x)}{g(x)})'=\frac{f'(x)\cdot g(x)-f(x)\cdot g'(x)}{(g(x))^2}$

$\frac{d}{dx}(\frac{2x+3}{3x^2-4})$

$\frac{\frac{d}{dx}(2x+3)*(3x^2-4)-(2x+3)*\frac{d}{dx}(3x^2-4)}{(3x^2-4)^2}$

$\frac{2*(3x^2-4)-(2x+3)*(6x)}{(3x^2-4)^2}$

$\frac{6x^2-8-12x^2-18x}{(3x^2-4)^2}$

$\frac{-6x^2-18x-8}{(3x^2-4)^2}$

Therefore, our required derivative is $\frac{-6x^2-18x-8}{(3x^2-4)^2}$ .

Now, we will substitute $x=-1$ in our derivative to find the required value as:

$\frac{-6(-1)^2-18(-1)-8}{(3(-1)^2-4)^2}$

$\frac{-6(1)+18-8}{(3(1)-4)^2}$

$\frac{-6+18-8}{(3-4)^2}$

$\frac{4}{(-1)^2}$

$\frac{4}{1}$

$4$

Therefore, the value of expression $\frac{d}{dx}(\frac{2x+3}{3x^2-4})$ at $x=-1$ is 4.

6 0

2 years ago

Someone help plz anyone??

Oxana [17]

Have u tried desmos graphing calculator online? all u gotta do is put in ur points and should be able to find the answer then

5 0

2 years ago

9 is greater than x, and 5 is less than x?<br><br> inequality.

Umnica [9.8K]

If 9 is greater than x, it can be displayed as x < 9. If 5 is less than x, it can be displayed as 5 < x. To show it fully, the answer is 5 < x < <span> 9. </span>

6 0

2 years ago

Read 2 more answers

PLEASE HELP ITS DUE TODAY!

shepuryov [24]

Answer:

a= $\sqrt{28.32}$ ≈5.3217 cm

Step-by-step explanation:

Use the Pythagorean Theorem

a^2+4.7^2=7.1^2

a^2+22.09=50.41

a^2=28.32

a= $\sqrt{28.32}$

≈5.3217

6 0

2 years ago

Read 2 more answers