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
lapo4ka [179]
3 years ago
12

3. Which of the following quadratic equations has no solution? A) 0 = −2(x − 5)2 + 3 B) 0 = −2(x − 5)(x + 3) C) 0 = 2(x − 5)2 +

3 D) 0 = 2(x + 5)(x + 3)
Mathematics
1 answer:
klemol [59]3 years ago
3 0

Answer:

D) 0 = 2(x + 5)(x + 3)

Step-by-step explanation:

Which of the following quadratic equations has no solution?

We have to solve the Quadratic equation for all the options in other to get a positive value as a solution for x.

A) 0 = −2(x − 5)2 + 3

0 = -2(x - 5) × 5

0 = (-2x + 10) × 5

0 = -10x + 50

10x = 50

x = 50/10

x = 5

Option A has a solution of 5

B) 0 = −2(x − 5)(x + 3)

Take each of the factors and equate them to zero

-2 = 0

= 0

x - 5 = 0

x = 5

x + 3 = 0

x = -3

Option B has a solution by one of its factors as a positive value of 5

C) 0 = 2(x − 5)2 + 3

0 = 2(x - 5) × 5

0 = (2x -10) × 5

0 = 10x -50

-10x = -50

x = -50/-10

x = 5

Option C has a solution of 5

D) 0 = 2(x + 5)(x + 3)

Take each of the factors and equate to zero

0 = 2

= 0

x + 5 = 0

x = -5

x + 3 = 0

x = -3

For option D, all the values of x are 0, or negative values of -5 and -3.

Therefore the Quadratic Equation for option D has no solution.

You might be interested in
Doug had been working 20 hours per week at a pet store for $8.00 per hour. His pay was increased to $8.50 per hour, and his hour
stellarik [79]

Answer:

$44

Step-by-step explanation:

First, find how much he was making originally:

Multiply the number of hours he worked by the amount he got per hour:

20(8)

= 160

Then, find how much he gets now:

24(8.50)

= 204

To find his total weekly pay increase, find the difference between them:

204 - 160

= 44

So, his total weekly pay increase is $44

5 0
2 years ago
Need help on this one too ​
KiRa [710]

I think it's none because that should be communitive and that's not there so.

4 0
2 years ago
What is the value for f(x)= 3^2x+1 when x =1/2
Papessa [141]
Taking 2x is power of 3.

So it will be like 3^(2*1/2) + 1
You are replacing 'x' with 1/2
and the equation becomes 3^1+1
So, f(1/2) = 4
Answer is 4.

If its like
<span>3^(2x+1)
Then its like 3^[(2*1/2) +1]
It becomes 3^(1+1) = 3^2 = 9
So, the answer is 9
</span>
8 0
3 years ago
Problem<br> 3x + 5 + 2x = 12 + 4x
Ratling [72]
X=7 All you need to do is combine like terms and then move the appropriate terms to the appropriate side.
8 0
3 years ago
Read 2 more answers
Quiz
andreyandreev [35.5K]
I don’t see a pic for this
8 0
3 years ago
Other questions:
  • What is the next fraction in this sequence? Simplify your answer. 3/4, 1/4, 1/12, 1/36
    12·1 answer
  • NEED ANSWER FAST PLSSS
    11·2 answers
  • What is the area of DEF shown in the figure?
    8·1 answer
  • Ind the distance between the two points. Round to the nearest tenth if necessary. (9, 12), (–2, 7)
    6·1 answer
  • -0.25z = 1.25 what is this answer
    11·2 answers
  • Factorise 4a-6ab-18ac​
    15·1 answer
  • Estimate the line of best fit using two points on the line 100 90 80 70 (e, 80) 60 30 20 10 (2.20) 10 O A. y= 2x O B. y = 2x+10
    11·1 answer
  • Which graph represents the function f(x) = -|x| -2
    13·1 answer
  • You find an object made of pure metal. What could you do to identify what type of metal the object is made of?How do you find de
    14·1 answer
  • You read online that the probability of being dealt four‑of‑a‑kind in a five‑card poker hand is 1 / 4165. Explain carefully what
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!