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Crazy boy [7]
3 years ago
10

Need help math asap ...................

Mathematics
2 answers:
Masteriza [31]3 years ago
5 0
C. 9 is your answer. mark me as brainliest please
Ivan3 years ago
4 0

Answer:

I believe the answer is 9.

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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 +
klemol [59]

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.

3 0
3 years ago
A chemist is using 357 milliliters of a solution of acid and water. If 14.3% of the solution is acid, how many milliliters of ac
LekaFEV [45]

Answer:

357 * .143 = 51.051 milliliters or

51 milliliters (rounded)

Step-by-step explanation:

3 0
2 years ago
What is x, the angle at which the diagonal beam meets the
givi [52]

Answer:16.7

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
What is 4x • 6y =9c.
LuckyWell [14K]
C=8/3 xy

Downloaded Photomath. That app is the best. Shows you how to get the answer along with the answer so you can learn how to do it for test.

6 0
3 years ago
Billy's age is twice Joe's age and the sum of their ages is 45. How old is Billy?
Fed [463]

Answer:

30 years old

Step-by-step explanation:

Joe's age can be set to x. Since Billy is twice as old as Joe, his age can be set to 2x. They add up to 45. You can set up an equation, 2x+x=45.

Simplify the equation.

3x=45, x=15

Joe is 15. Billy is 2(15)=30.

4 0
3 years ago
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