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
motikmotik
3 years ago
14

2u+7u=81 simplify your answer as much as possible

Mathematics
2 answers:
jenyasd209 [6]3 years ago
7 0
2u+7u=9u
9u=81
Divide both sides
U=9
blondinia [14]3 years ago
7 0

Answer: 2u+7u=81

9u=81

9u/9 =81/9

U=9

Step-by-step explanation:

You might be interested in
5[x+1]+6=21 what is the solution
Leno4ka [110]
5x + 5 + 6 = 21
5x + 11 = 21
5x = 10
X = 2
8 0
3 years ago
Bill saw that his friend can run an average of three
UkoKoshka [18]

Answer:

9 meters

Step-by-step explanation:

24/8 = 3

3 meters * 3 = 9 meters

6 0
3 years ago
Evaluate p+(n-1) x3 for n=7 and p=9
Zielflug [23.3K]
Is x3 an exponent ? i answered one of ur earlier questions and i assumed x3 was multiplication

9 + (7 - 1)^3
= 9 + (6)^3
= 9 + (216)
= 225

or if it is multiplication...

then the answer is 27
8 0
3 years ago
Which of the following statements is true? a. Bonds have more risk than stocks, but offer more return. b. Stocks have more risk
Ipatiy [6.2K]

Answer:

Option: b is correct.

( Stocks have more risk than bonds, but offer more return).

Step-by-step explanation:

Bonds are debts while stocks are stakes of ownership in a company.  

Bonds pay a fixed rate of interest, and guarantee principal payment at the end of the term, they're generally considered to be safer than stocks. That doesn't mean bonds are 100% safe.

<em>" Most investment professionals consider bonds a safe component of portfolios. They're supposed to provide the stability and certainty that stocks can't "</em>

<em>" In bond we have a fixed interest whereas in stock the rates could go much high "</em>

Hence, option b is correct. ( Stocks have more risk than bonds, but offer more return).


7 0
4 years ago
Consider the function below. (If an answer does not exist, enter DNE.) f(x) = x3 − 27x + 3 (a) Find the interval of increase. (E
xxTIMURxx [149]

Answer:

(-∞,-3) and (3,∞)  

Step-by-step explanation:

f(x) = x³ − 27x + 3

1. Find the critical points

(a) Calculate the first derivative of the function.

f'(x) = 3x² -27  

(b) Factor the first derivative

f'(x)= 3(x² - 9) = 3(x + 3) (x - 3)

(c) Find the zeros

3(x + 3) (x - 3) = 0

x + 3 = 0      x - 3 = 0

     x = -3          x = 3

The critical points are at <em>x = -3</em> and x = 3.

2. Find the local extrema

(a) x = -3

f(x) = x³ − 27x + 3 = (-3)³ - 27(-3) + 3 = -27 +81 + 3 = 57

(b) x = 3

f(x) = x³ − 27x + 3 = 3³ - 27(3) + 3 = 27 - 81 + 3 = -51

The local extrema are at (-3,57) and (3,-51).

3, Identify the local extrema as maxima or minima

Test the first derivative (the slope) over the intervals (-∞, -3), (-3,3), (3,∞)

f'(-4) = 3x² -27 = 3(4)² - 27  = 21

f'(0) = 3(0)² -27 = -27

f'(4) = 3(4)² - 27 = 51

The function is increasing on the intervals (-∞,-3) and (3,∞).

The graph below shows the critical points of your function.

6 0
3 years ago
Other questions:
  • You roll a fair 6- sided die.What is P (roll less than 4)
    8·1 answer
  • Please factor by grouping. Show work 12x^3+2x^2-30x-5
    12·1 answer
  • ​(a) The additive inverse of negative two thirds
    6·2 answers
  • The length of a rectangular rug is 4 feet less than twice its width. The perimeter of the rug is 40 feet. Write a system of equa
    8·1 answer
  • Show different ways to make 492,623
    11·2 answers
  • Durning one winter snow storm in Denver,Colorado, Jesse noted that 16 inches of snow fell in 5 1/3 hour.What was the rate of sno
    14·1 answer
  • Find the common factor and rewrite. Type your answer in the box. Do not use any spaces.
    9·1 answer
  • When 4((0.5 x + 2.5 y minus 0.7 x minus 1.3 y + 4)) is simplified, what is the resulting expression?
    12·1 answer
  • Someone please help with this math question, it is not hard if you're good at math, but I'm on a test.
    15·1 answer
  • There are 46 children going to a party. 18 will wear black costumes, 12 will wear orange costumes and some will wear both black
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!