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alexira [117]
3 years ago
15

What is the other answer for 9 + 10 ?​

Mathematics
2 answers:
xeze [42]3 years ago
6 0

Answer:

19? 21?

Step-by-step explanation:

12345 [234]3 years ago
6 0

Tje other answer is 8+11

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Help please, I attached the question. Is it a!? <br> 
AVprozaik [17]

Answer:

A

Step-by-step explanation:

Recall that for a quadratic equation of the form:

0=ax^2+bx+c

The number of solutions it has can be determined using its discriminant:  

\Delta = b^2-4ac

Where:

  • If the discriminant is positive, we have two real solutions.
  • If the discriminant is negative, we have no real solutions.
  • And if the discriminant is zero, we have exactly one solution.

We have the equation:

2x^2+5x-k=0

Thus, <em>a</em> = 2, <em>b</em> = 5, and <em>c</em> = -<em>k</em>.

In order for the equation to have exactly one distinct solution, the discriminant must equal zero. Hence:

b^2-4ac=0

Substitute:

(5)^2-4(2)(-k)=0

Solve for <em>k</em>. Simplify:

25+8k=0

Solve:

\displaystyle k = -\frac{25}{8}

Thus, our answer is indeed A.

3 0
3 years ago
Read 2 more answers
If a van traveled 175 miles in 5 hours, how far could the van travel in 8 hours?
Fittoniya [83]
280 because if you divide 175 by 5 you get 35 which is the amount of miles the van travels in 1 hour and then you multiple 35 by 8 and you have your answer 280
5 0
3 years ago
Mr. Arnold drives 130 miles round trip to work 5 days a week. Write and solve an equation to find how many miles he drives in 60
mart [117]

Answer:

The answer is D.

Step-by-step explanation:

130 x 60 = 7,800 miles.  you don't need the extra information "5 days a week" to solve the problem.  

3 0
3 years ago
9. What coordinates will a point (x, y) reflected over the x-axis have?
Charra [1.4K]
The answer to your question is c
7 0
3 years ago
If the rectangular menu is 3 feet long by 2 feet wide , what is the area of the menu?
Bess [88]

area = length * width

       = 3 * 2

  = 6 ft ^2

4 0
3 years ago
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