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
liq [111]
3 years ago
6

Solve 2x2 + 20x = −38.

Mathematics
1 answer:
Makovka662 [10]3 years ago
6 0

Answer:

Correct Answer is C(−5 ±square root 6)

Step-by-step explanation:

2x^2+20x+38=0

2(x^2+10x+19)=0

x^2+10x+19=0

This is a quadratic equation here we have used following formula to find the roots of this equation

x=-b−±square root (b^2-4*a*c))/2*a......(1)

Here,

a=1

b=10

c=19

put values of a, b and c in equation (1)

x=(-10 ±square root(10^2-4*1*19))/2*1

x=(-10 ±square root(100-76))/2

x=(-10 ±square root(24))/2

x=(-10 ±square root(2*2*6))/2

x=(-10 ±2square root(6))/2

x=2(-5 ±square root(6))/2

x=-5 ±square root(6)


Hope this answer will help you

You might be interested in
F(x)=x^3+10x^2+31x+30
Colt1911 [192]

The factors of the given polynomial will be ( x + 2 ), ( x + 5 ) and ( x + 3 ).

<h3>What is an expression?</h3>

Expression in maths is defined as the collection of the numbers variables and functions by using signs like addition, subtraction, multiplication and division.

The given expression will be solved as:-

f(x) = x³ + 10x² + 31x + 30

f(x) = ( x³ + 7x² + 10x + 3x² + 21x + 30

f(x) = ( x² + 7x + 10 ) ( (x + 3 )

f(x) = ( x²+ 5x + 2x + 10 ) ( x + 3 )

f(x) =[ x ( x+ 5 ) +2 ( x+ 5) ] ( x + 3 )

f(x) = ( x + 5 ) ( x + 2 ) ( x + 3 )

Therefore factors of the given polynomial will be ( x + 2 ), ( x + 5 ) and ( x + 3 ).

To know more about Expression follow

brainly.com/question/723406

#SPJ1

5 0
2 years ago
A hovercraft takes off from a platform it’s height (in meters), x seconds after takeoff, is modeled by
yulyashka [42]

9514 1404 393

Answer:

  81 m

Step-by-step explanation:

Since x is seconds after takeoff, the value of x at takeoff is 0. You are being asked to find H(0).

  H(0) = -3(0 -3)^2 +108 = -3(9) +108 = 81

The height of the hovercraft at the time of takeoff is 81 meters.

8 0
2 years ago
In which quadrant is (1/2, -1.8)? Quadrant I Quadrant II Quadrant III Quadrant IV
Nadya [2.5K]

Answer:

(1/2, -1.8) belongs in quadrant 4

quadrant 4 is a (positive, negative)

7 0
3 years ago
Read 2 more answers
How do you do this question?
romanna [79]

Answer: B) Demand will most likely be elastic

Place yourself in the shoes of the employer. To them, demand is them needing/wanting workers. Specifically we call this "labor demand". The supply is the potential or current worker providing the service and/or making the product.

If the price goes up, then this means the worker earns higher wages. This in turn causes labor demand to fall. So the employer will be less likely to hire more workers if the wages increase. It's similar to how if the price of an item goes up in a store, then less people are probably going to buy it.

Demand is elastic because a small change in price causes a large change in demand. The company is going to be sensitive to wage changes. The company sees that it is approaching the diminishing returns, so it is likely to scale back on labor to save costs. It's all about trying to minimize costs and maximize revenue. Often, revenues can't be changed very much since customers are themselves sensitive to price changes (assuming there are substitutes in the market), so the company will turn to trying to reduce costs as much as possible leading to maximum profit.

3 0
2 years ago
Rounded 3,428,583 rounded to the nearest 10,000
densk [106]
Since you want to round to the 10,000 place, you'll want to look at the 2 and the 8 that are next to each other. The 8 makes the two a 3 because it is greater than 5, which gives you 3,430,000. Hope this helped!
8 0
3 years ago
Read 2 more answers
Other questions:
  • Item 5Find the percent of the number.175% of 54 is .
    6·1 answer
  • Solve for x. 23x +2=15x+48x+6
    11·2 answers
  • I need help!!!
    11·2 answers
  • 11.
    6·1 answer
  • Cole rolls a number cube multiple times and records the data in the table above. At the end of the experiment, he counts that he
    15·2 answers
  • A) Write 7.1 x 10² as an ordinary number.
    7·2 answers
  • 3x+6(x-11)=5x-18<br> Simplify (solve for variable)
    10·1 answer
  • Just 7 i really dont want to do the work 3
    5·1 answer
  • Plz solve ill give brainliest to the first correct answer
    7·2 answers
  • Use the figure shown.
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!