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
tatiyna
4 years ago
13

How do you solve that?

Mathematics
2 answers:
Aleks [24]4 years ago
7 0
Put it in the form 

ax^2 + bx + c = 0 

use the quadratic formula

x =  [ -b + sqrt( b^2 - 4 ac )  ] / 2a


x =  [ -b - sqrt( b^2 - 4 ac )  ] / 2a

7v^2 - 7v - 22 = 0

a = 7 
b = -7
c = -22

v = [  7 + sqrt ( 49 - 4 * 7 ( -22) ] / 2 * 7  = 2.34

v = [  7 - sqrt ( 49 - 4 * 7 ( -22) ] / 2 * 7  = -1.34


nikitadnepr [17]4 years ago
4 0

Answer:

19

Step-by-step explanation:


You might be interested in
PLZ help me ASAP its due in a couple of mins!!! :((((( which one is it??
jolli1 [7]

Answer:

Hello

Step-by-step explanation:

Hello

5 0
3 years ago
What is the solution of the system?<br> y=x^2-4x+5<br> Y=-2+8
Nataly_w [17]
Yea something is not right.if y=6 then you cant solve the system because you end up with x^2-4x-1
5 0
4 years ago
the sales tax in the town where amanda lives is 7 %. amanda paid 35 in sales tax on a new stero . what was the price of the ster
Blababa [14]
24 dollars if you times the amount of percentage using the correct ratio you should get around 24 or maybe 24.50 
4 0
3 years ago
This is a series of 3 questions please answer :)
Anastasy [175]
1. The first one I think you would divide 8 from 64 n get 8 so thats 8%. Answer to that would be the Store.

2. You would!! 56%

3. Multiply 2.5 to 40 and 25. You need a denominator of 100. 62.5/100
So yes you did find at least 60%


I think I did this right. Hope it helps!
5 0
3 years ago
Read 2 more answers
Gisele trains 7 days per week for a biathlon. She covers a total of 20 miles cycling and running each day. Gisele cycles a total
svp [43]

Answer:

D The solution is 35, which represents the number of miles she runs each week.

Step-by-step explanation:

Given that Gisele trains 7 days a week, the total of miles she cycles and runs in a week can be divided by 7, or multiplied by 1/7 to find her daily average.  Her total number of miles ran for the week combined with her cycling miles multiplied by 1/7 would average 20 miles daily.  Since the run is the same each day, using the equation:

1/7(105 + r) = 20 will give the value of 'r' in the number of miles ran per week

105 + r = 140 (multiply both sides by '7')

r = 35 (subtract '105' from both sides)

7 0
3 years ago
Read 2 more answers
Other questions:
  • What is the decimal equivalent of 32/9
    11·2 answers
  • Solve for x.<br><br> 4^2x = 5^2x-1
    9·1 answer
  • Determine whether the set equipped with the given operations is a vector space. for those that are not vector spaces identify th
    6·1 answer
  • I need answers really bad please help me
    8·1 answer
  • 4) If you bought a jersey at 30% off and paid $205.50,<br> how much money did you save?
    8·1 answer
  • Explain how to estimate 368+231 two different ways
    9·1 answer
  • What box plot represents a set of data that has the greatest mean absolute value
    11·1 answer
  • A baseball weighs 6 ounces. Find the weight in pounds.
    10·1 answer
  • Whats 10 times 5 in the united states of america
    11·2 answers
  • 83.2 divided by 26...................................
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!