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
Thepotemich [5.8K]
3 years ago
8

Which equation shows the quadratic formula used correctly to solve 7x2 = 9+ x for x?

Mathematics
2 answers:
SCORPION-xisa [38]3 years ago
7 0

This can also be explained as D on edg :)

____ [38]3 years ago
6 0

Answer:

x = (1 + sqrt(253))/14 or x = (1 - sqrt(253))/14

Step-by-step explanation:

Solve for x:

7 x^2 = x + 9

Subtract x + 9 from both sides:

7 x^2 - x - 9 = 0

x = (1 ± sqrt((-1)^2 - 4×7 (-9)))/(2×7) = (1 ± sqrt(1 + 252))/14 = (1 ± sqrt(253))/14:

Answer: x = (1 + sqrt(253))/14 or x = (1 - sqrt(253))/14

You might be interested in
Both the ranges and the interquartile ranges for the data sets are the same.
aleksley [76]

Answer:

to find range of interquartile sets of data

you see 5 vertical lines 1 is start point 2 is start of 2nd quartile 3 is start of 3rd quartile and also represents the median.  the 4th start of 4th quartile and 5th is very end point.

Therefore the interquartile is from start line 2 to start line 4

apply to each by if it says 10 and 34 then we show workjings 34-10 = 24 and that is the range once we deduct data from each other.

Therefore full range is start line 1 to end line 5

if this says 2 to 45 then full range is 45-2 = 43 and apply to each boxplot.

Step-by-step explanation:

6 0
2 years ago
Which table of values represents the equation y = 1/2x?​
gtnhenbr [62]

Answer:

The third option choice

Step-by-step explanation:

In the equation all your doing is halfing the x to get y

Or multiplying it by . 5

So half of what your x is is what your y is

4 0
3 years ago
A certain shade of green paint is made from 5 parts yellow mixed with three parts blue. If 2 cans of yellow are used, how many c
vekshin1
5 Yellow = 3 Blue 
2 Yellow =  3/5 *2 = 6/5 Blue, 1.2 cans of Blue .
<u>Award brainliest if helped!</u>
6 0
3 years ago
. Caroline had 400 stamps in her collection. 1 10 th of them were Indian stamps, Onethird of the remaining stamps were from Euro
Ganezh [65]

Answer:

So 400 stamps

African---> 100

Indian------> 1/10 x 400

= 40

European---> 400-40=360

1/3 x 360

= 120

so 120+40+100= 260

400-260

= 140 stams from US

6 0
3 years ago
Bo paid with 1/4 of his paycheck and put 2/5 of the remainder in savings. The rest of his paycheck he divided equally among the
yKpoI14uk [10]

this should be at leat twenty charcters

7 0
3 years ago
Other questions:
  • Employers may use your credit report to decide wether to hire you. <br><br>True or False​
    5·1 answer
  • What are two prime numbers that are greater than 25 and less than 35
    12·2 answers
  • Solve 5x +3&gt;19 what is it
    15·1 answer
  • You got $300 for Christmas. You want to buy a hoodie that cost $52, a pair of pants that were $45 and you need shoes. Write an i
    13·2 answers
  • Can you show how to solve this question? Thomas and Sharlina work on weekends and holidays doing odd jobs around the neighborhoo
    11·1 answer
  • Can i get some help please??? Thanks!!!!
    8·1 answer
  • Write 2/3 of 4 as a inproper fraction.
    13·2 answers
  • Can someone help me with this question plz thx :,)
    15·1 answer
  • A={e,m,w} list subsets
    10·1 answer
  • Please help !
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!