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
postnew [5]
3 years ago
11

What do you get when using the Quadratic formula for the equation x^2+4=20?

Mathematics
1 answer:
wolverine [178]3 years ago
4 0
x^{2} +4=20
x^{2} =20-4
x^{2} =16
x= \sqrt{16}
x=4
You might be interested in
Help please (will chose brainliest)
goldfiish [28.3K]

Answer:

LEts start with 10^1

If we have positive exponent then we add zeros

10^1= 10

10^2=100 (Put 2 zeros because exponent is 2)

10^3=1000 (Put 3 zeros because exponent is 3)

10^4=10000 (Put 4 zeros because exponent is 4)

10^5=100000 (Put 5 zeros because exponent is 5)

For negative exponent , we make a fraction . we put 1  at the top always and number as the bottom

10^{-1}=\frac{1}{10} (Put 1 zero at the bottom because exponent is -1)

10^{-2}=\frac{1}{100} (Put 2 zeros at the bottom because exponent is -2)

10^{-3}=\frac{1}{1000} (Put 3 zeros at the bottom because exponent is -3)

3 0
2 years ago
Find the nth term of this quadratic sequence<br> 3, 11, 25, 45, .
Hoochie [10]

The term of the given quadratic sequence is found to be 3n² - n + 1 using the principle of mathematical induction.

Given,

In the question:

The quadratic sequence is :

3, 11, 25, 45, ...

To find the nth term of the quadratic sequence.

Now, According to the question;

The first term of the sequence is 3, the second term is 11, the third term is 25, and the fourth term is 45.

The difference between the first and second terms can be calculated as follows:

11-3 = 8

The difference between the second and third terms can be calculated as follows:

25-11 = 14

The difference between the third and fourth terms can be calculated as follows:

45-25 = 20

The sequence is expressed as follows:

3,3+8,11+11,25+20,...

The difference between consecutive terms expands by 6.

Use the principle of mathematical induction.

6(\frac{n(n+1)}{2} )

= 3n(n+1)

The sequence's nth term can be calculated as follows:

term = 3n(n+1) - 4n + 1

             = 3n² - n + 1

Hence, the term of the given quadratic sequence is found to be 3n² - n + 1 using the principle of mathematical induction.

Learn more about Principle of mathematical induction at:

brainly.com/question/29222282

#SPJ1

6 0
1 year ago
Juan lives 2.5 miles from the park. It took him 12 minutes to ride his bicycle to the park. What was Juan's average speed, in mi
Thepotemich [5.8K]
His average speed is 12.5 mph
5 0
3 years ago
Read the following sentences from "The Third Bank of the River."
slega [8]
D) from childhood to adulthood my father was very honest and ope
4 0
3 years ago
I need help with an explanation please, thanks!!
PolarNik [594]
The answer is “C” :)
5 0
2 years ago
Read 2 more answers
Other questions:
  • How much taller would the billboard have to be if you enlarge the entire image using just the width scale
    14·1 answer
  • A bike tire just ran over a nail, and it is losing pressure at a rate of 5% every minute. The tire pressure is currently 1,300 k
    5·1 answer
  • 4
    7·1 answer
  • How do I convert 2/5 to a decimal
    6·2 answers
  • $627 is 95% of what amount ?
    11·2 answers
  • A fair 6-sided die is rolled 4 times and the resulting sequence of 4 numbers is recorded. How many different sequences consist e
    12·1 answer
  • Factor <br> 1. 6a+ 48 <br> 2. 9a -81b
    7·1 answer
  • Can any help with it<br>​
    10·2 answers
  • How many solutions are on this graph?
    9·2 answers
  • Evaluate the expression.<br> (15 + 6) divided by 3
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!