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saveliy_v [14]
3 years ago
9

Calculate the discriminant and use it to determine how many real-number roots the equation has.

Mathematics
1 answer:
Vladimir79 [104]3 years ago
4 0
In a quadratic equation with the general formula of:

ax^2 + bx + c = 0

The discriminant is equal to b^2 - 4(a)(c). If the answer is a perfect square, then there are two real numbers. If not, then there are no real number root.

The discriminant for this equation is

(-6)^2 - 4(3)(1) = 24

Since 24 is not a perfect square, there are no real number roots.
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13y-7y=9<br> Solve for y, write it as a reduced fraction.
raketka [301]

Answer:

3/2 OR 1 1/2

Step-by-step explanation:

Collect like terms, meaning combine both y's. You should have something like this afterwards.

6y = 9

Now that you have that divide the 6 on both sides so Y is by itself!

Your answer is now 3/2.

4 0
3 years ago
The second term in a geometric system is 12. the fourth term in the same sequence is 4/3. what is the common ratio in the sequen
ANEK [815]

Answer:

36/43 I think.

Step-by-step explanation:

Wyzant

4 0
2 years ago
Combine like terms. x^2y-3xy^2-6x^2y
balu736 [363]

The result after combining like terms is: -5x^2y-3xy^2

Step-by-step explanation:

Given expression is:

x^2y-3xy^2-6x^2y

The like terms are those terms with whom the variable or product of variables is same.

As in the given expression, first and third, both terms have x^2y so both terms are like terms

Combining like terms, means the indicated operation is performed on them

So,

Combining like terms:

x^2y-6x^2y-3xy^2\\= -5x^2y-3xy^2

Hence,

The result after combining like terms is: -5x^2y-3xy^2

Keywords: Expressions, polynomials

Learn more about polynomials at:

  • brainly.com/question/846474
  • brainly.com/question/833559

#LearnwithBrainly

3 0
3 years ago
Solve the equation by completing the square. Round to the nearest hundredth if necessary. x2 – x – 7 = 0
Tanzania [10]
2x-x-7=0

3x-7=0

add 7 to 7 and 0, so then we cross out 7-7, and then

3x=7, bc u change the subtraction to addition, sr if thst doesn't make sense but 3x=7 is the answer
8 0
3 years ago
Read 2 more answers
If I Mowed 4 yards for 20 dollars what the rate and unit rate
Vilka [71]

Answer:

The rate would be: 4:20 and the unit rate would be 1:5.

Step-by-step explanation:

4 0
3 years ago
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