1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
borishaifa [10]
3 years ago
10

5 more than two thirds of a number is 25. What is that number?

Mathematics
1 answer:
WINSTONCH [101]3 years ago
8 0

Answer:

30

Step-by-step explanation:

5+2/3x=25

2/3x=25

x=25/(2/3)

x=30

You might be interested in
How do you do a two step equation with a fraction
shutvik [7]
The fraction symbolizes division. Divide, buddy.
7 0
3 years ago
Read 2 more answers
What’s the answer plz!!
Karolina [17]
I think its the secondd
8 0
4 years ago
Read 2 more answers
Bradford starting his first newspaper route. He will deliver 17 newspapers. A newspaper subscription cost each customer six doll
STatiana [176]
I have no idea so i cannot help you sorry
8 0
3 years ago
Read 2 more answers
1. (5pts) Find the derivatives of the function using the definition of derivative.
andreyandreev [35.5K]

2.8.1

f(x) = \dfrac4{\sqrt{3-x}}

By definition of the derivative,

f'(x) = \displaystyle \lim_{h\to0} \frac{f(x+h)-f(x)}{h}

We have

f(x+h) = \dfrac4{\sqrt{3-(x+h)}}

and

f(x+h)-f(x) = \dfrac4{\sqrt{3-(x+h)}} - \dfrac4{\sqrt{3-x}}

Combine these fractions into one with a common denominator:

f(x+h)-f(x) = \dfrac{4\sqrt{3-x} - 4\sqrt{3-(x+h)}}{\sqrt{3-x}\sqrt{3-(x+h)}}

Rationalize the numerator by multiplying uniformly by the conjugate of the numerator, and simplify the result:

f(x+h) - f(x) = \dfrac{\left(4\sqrt{3-x} - 4\sqrt{3-(x+h)}\right)\left(4\sqrt{3-x} + 4\sqrt{3-(x+h)}\right)}{\sqrt{3-x}\sqrt{3-(x+h)}\left(4\sqrt{3-x} + 4\sqrt{3-(x+h)}\right)} \\\\ f(x+h) - f(x) = \dfrac{\left(4\sqrt{3-x}\right)^2 - \left(4\sqrt{3-(x+h)}\right)^2}{\sqrt{3-x}\sqrt{3-(x+h)}\left(4\sqrt{3-x} + 4\sqrt{3-(x+h)}\right)} \\\\ f(x+h) - f(x) = \dfrac{16(3-x) - 16(3-(x+h))}{\sqrt{3-x}\sqrt{3-(x+h)}\left(4\sqrt{3-x} + 4\sqrt{3-(x+h)}\right)} \\\\ f(x+h) - f(x) = \dfrac{16h}{\sqrt{3-x}\sqrt{3-(x+h)}\left(4\sqrt{3-x} + 4\sqrt{3-(x+h)}\right)}

Now divide this by <em>h</em> and take the limit as <em>h</em> approaches 0 :

\dfrac{f(x+h)-f(x)}h = \dfrac{16}{\sqrt{3-x}\sqrt{3-(x+h)}\left(4\sqrt{3-x} + 4\sqrt{3-(x+h)}\right)} \\\\ \displaystyle \lim_{h\to0}\frac{f(x+h)-f(x)}h = \dfrac{16}{\sqrt{3-x}\sqrt{3-x}\left(4\sqrt{3-x} + 4\sqrt{3-x}\right)} \\\\ \implies f'(x) = \dfrac{16}{4\left(\sqrt{3-x}\right)^3} = \boxed{\dfrac4{(3-x)^{3/2}}}

3.1.1.

f(x) = 4x^5 - \dfrac1{4x^2} + \sqrt[3]{x} - \pi^2 + 10e^3

Differentiate one term at a time:

• power rule

\left(4x^5\right)' = 4\left(x^5\right)' = 4\cdot5x^4 = 20x^4

\left(\dfrac1{4x^2}\right)' = \dfrac14\left(x^{-2}\right)' = \dfrac14\cdot-2x^{-3} = -\dfrac1{2x^3}

\left(\sqrt[3]{x}\right)' = \left(x^{1/3}\right)' = \dfrac13 x^{-2/3} = \dfrac1{3x^{2/3}}

The last two terms are constant, so their derivatives are both zero.

So you end up with

f'(x) = \boxed{20x^4 + \dfrac1{2x^3} + \dfrac1{3x^{2/3}}}

8 0
2 years ago
Distribute and evaluating <br> (X + 6) (x - 3)
sesenic [268]

Answer:

x^2+3x-18

Step-by-step explanation: hoped I helped

7 0
3 years ago
Read 2 more answers
Other questions:
  • Tyler went to the State spelling bee. His school gave him $50 for travel and $30 A day for his meals. Tyler was given a total of
    12·1 answer
  • Mario has $14.35 left it as wallet.
    12·1 answer
  • *HELP* Select the correct answer. What is the value of this expression when t = -12? -3|t − 8| + 1.5 A. 61.5 B. 13.5 C. -10.5 D.
    5·1 answer
  • Determine the slope of the line of the two given points:<br><br> (6, 4), (15, 12)
    8·1 answer
  • Solve. x + 3y = 16 y = 7
    6·2 answers
  • Please help!!-- What is the measure of arc AT in the circle O below?
    7·1 answer
  • 1.) Subtract unlike fractions using the butterfly method.
    13·1 answer
  • 3x⁷+4|x| is it polynomial function ​
    7·1 answer
  • Let a and b be roots of x² - 4x + 2 = 0. find the value of a/b² +b/a²​
    15·2 answers
  • Meredith is playing games at an arcade to earn tickets that she can exchange for a prize. She has 250 tickets from a previous vi
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!