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
Papessa [141]
3 years ago
11

N^2+100=20n Please show work

Mathematics
1 answer:
adell [148]3 years ago
7 0
Subtract 20n from both sides of the equation.
n^2+100-20n=0
factor using the perfect square rule.
(n-10)^2=0
set the n-10 equal to 0.
n-10=0
add 10 to both sides of the equation.
n=0
You might be interested in
What is 47/3 radians in degrees?
xeze [42]
47/ 3 rad= 2820

have a great day
6 0
3 years ago
Will mark Brainly!!! 20 points!!!!
Mumz [18]

Answer:

= 4

Step-by-step explanation:

sqrt 15 = 3.872

to approximate to the nearest whole number (integer), you take the first decimal number which is 8, since 8 is greater than 5, you will add one(1) to the whole number which is 3 to make it 4.

5 0
3 years ago
Write the inverse function for the function, ƒ(x) =1/2x + 4. Then, find the value of ƒ^ -1(4). Type your answers in the box.
Kipish [7]

Answer:

f⁻¹(x) = 2x - 8

f⁻¹(4) = 2 × 4 - 8

f⁻¹(4) = 0

Step-by-step explanation:

f(x) = \frac{1}{2} x + 4\\x = \frac{1}{2} f^{-1}(x) + 4\\x - 4 = \frac{1}{2} f^{-1}(x)\\2x - 8 = f^{-1}(x)\\f^{-1}(x) = 2x - 8

Let's test it

f^{-1}(f(x)) = 2(f(x)) - 8\\f^{-1}(f(x)) = 2( \frac{1}{2}x + 4) - 8\\f^{-1}(f(x)) = \frac{2}{2}x + 8 - 8\\f^{-1}(f(x)) = x

So we do indeed have the inverse function, so using that we can plug in the values requested:

f⁻¹(x) = 2x - 8

f⁻¹(4) = 2 × 4 - 8

f⁻¹(4) = 0

4 0
3 years ago
Please help me! I will mark brainliest!
Elenna [48]

Answer:

Your picture didn't load?

Step-by-step explanation:

3 0
3 years ago
I need help. It's kinda hard for me. We have to use decimal numbers
cestrela7 [59]

Answer: 2.4 + 7.6 = 10

Step-by-step explanation:

Hope this helps

5 0
2 years ago
Other questions:
  • HELP DUE TONIGHT
    11·1 answer
  • Math need to simplify the expression
    13·2 answers
  • I need help in part A and part B
    9·1 answer
  • The ratio of the number of boys and girls in a college is 7:8. If the percentage increase in the number of boys and girls be 20%
    5·1 answer
  • Five friends split the cost of parking at an amusement park. Each of them also buys a$30 ticket.write an algebraic expression th
    11·2 answers
  • Evaluate ab + c for a = 2, b = 3, and c = 4
    6·2 answers
  • Alex is thinking of a number.
    5·1 answer
  • The vertices of a rectangle are (3, 1), (3, 5), (6, 5), and (6, 1). Find the perimeter of the rectangle
    12·1 answer
  • Need help due tonight!
    7·1 answer
  • Ben's Toyota Corolla can get 39 miles per gallon, if the maximum amount the gas tank can hold is 13 gallons, what is the range o
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!