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
stepladder [879]
3 years ago
12

Which equation shows the quadratic formula used correctly to solve 7x^2=9+x for x?

Mathematics
2 answers:
Leokris [45]3 years ago
8 0
The quadratic formula that can be used to correctly solve 7x^2 = 9 + x for 'x' is:
x = \frac{1 + \sqrt{253}}{14}
OR
x ≈ 1.20756955, -1.06471240
WITCHER [35]3 years ago
6 0
Hello! Thank you for your question! I would be happy to help!

So here is what you would get if you use the quadratic formula:

x = 1 +- √253 / 14

x ≈ 1.20756955, -1.06471240
You might be interested in
2,000,999,600,000 / 7,999,8800,500,000,500 <br> -10,00000, hrs and mins together?
Ymorist [56]

Answer:

Step-by-step explanation:

God no!

5 0
3 years ago
Read 2 more answers
Find the radius of sphere with a volume of 500π3 cubic feet.
gulaghasi [49]

Answer:

5cm

Step-by-step explanation:

8 0
3 years ago
11. Find the value of x.<br>(6x + 7)<br>(8x - 17)​
Leto [7]

Answer:

X= -7/6, 17/8

Step-by-step explanation:

Foil it, then use quadratic to find zeros/roots.

6 0
3 years ago
Write this number using digits:
Setler [38]
Answer: 454,000,004,542
5 0
2 years ago
Read 2 more answers
To evaluate log2(3), Autumn reasoned that since log2(2) = 1 and log2(4) = 2, log2(3) must be the average of 1 and 2 and therefor
geniusboy [140]

Answer:

log₂(3) = 1.585 ≠ 1.5

Her thinking is not valid because the technique of average is valid only  if the graph of the function is a straight line, but the graph of the log function is not a straight line.

Therefore the values cannot be taken by average

Step-by-step explanation:

Given:

log₂(2) = 1

log₂(4) = 2

To evaluate :  log₂(3)

Now,

we know that

logₓ(y) = \frac{\log(y)}{\log(x)}        (Here the log has same base in the numerator and the denominator i.e 10)

therefore,

log₂(3) =  \frac{\log(3)}{\log(2)}

also,

log(2) = 0.3010

log(3) = 0.4771

thus,

log₂(3) =  \frac{0.4771}{0.3010}

or

log₂(3) = 1.585 ≠ 1.5

Her thinking is not valid because the technique of average is valid only  if the graph of the function is a straight line, but the graph of the log function is not a straight line.

Therefore the values cannot be taken by average

7 0
4 years ago
Other questions:
  • Help please my sister needs help with time
    13·1 answer
  • Which
    9·1 answer
  • Mr. Hershman has purchased a farm that is in the shape of a rectangle. The dimensions of the piece of land are 4.74.7 km by 2.58
    11·1 answer
  • Jillian flew to New Zealand for summer vacation. While she was there, she rode her bike 1/3 of the time. She spent 1/4 of the re
    8·1 answer
  • ***Function table***
    7·1 answer
  • One plane at 520 feet is ascending at a rate of 40 feet per minute. While another plane at 3800 feet is descending at a rate of
    11·1 answer
  • 3x+4(x+3)=7 solve for x
    9·2 answers
  • Express in the form 1 : n 4 : 12
    8·2 answers
  • 84 km<br> 35 km<br> What is the length of the hypotenuse?
    9·1 answer
  • What is the opposite of -5.
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!