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Airida [17]
3 years ago
7

Need help graphing ASAP

Mathematics
1 answer:
Serhud [2]3 years ago
3 0

Answer:

21. C. (-3,2)

22. A.

23. D.

24. B.

25. A.

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Given the trinomial x^2+bx+c where both the first and second signs are positive, the signs of the factors will be: A. both negat
Lunna [17]
The answer here is C. The sign of the factors are both positive. We can use the FOIL method as reference in determining the sign of the factors. The 3rd term C is positive; therefore our only option is either both negative or both positive. Looking the middle term, which is positive, we know that the middle term is the sum of the outer and inner in FOIL method, which means, signs of the factors must be both positive
7 0
3 years ago
If the discriminant of a quadratic equation is equal to -9, which statement describes the roots?
Mice21 [21]

ANSWER

No real roots.

The roots are complex or imaginary.

EXPLANATION

The quadratic equation

a {x}^{2}  + bx + c = 0

has discriminant,

D =  {b}^{2}  - 4ac

If the discriminant is less than zero , then the quadratic equation has no real roots.

The given discriminant is -9.

Since -9 is less than zero, it means the quadratic equation has complex or imaginary roots.

8 0
3 years ago
at Mountain Park Middle School there are 250 7th grade students currently 32% of those students are in advanced math​
makkiz [27]

Answer:

95

students in the seventh grade have taken swimming lessons.

Explanation:

We calculate  

38

%

of  

250

using the following formula:

x

=

250

×

38

100

x

=

25

0

×

38

10

0

       

(cancel by 10)

x

=

5

25

×

38

2

10

       

(cancel by 5)

x

=

5

×

19

38

1

2

           

(cancel by 2)

x

=

5

×

19

x

=

95

Step-by-step explanation:

7 0
3 years ago
If k=100-4n<br> what is the value of n when k is 99
stira [4]

Answer:

1/4

Step-by-step explanation:

when k=99

=>99=100-4n

=>4n=100-99

=>4n=1

=>n=1/4

7 0
3 years ago
5(4x-4)+2(13-5x)-3(3x+4)=-3 solve the equation. heLP
adell [148]

The answer is x=3

Im sure of it.

6 0
3 years ago
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