3 years ago

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

1 answer:

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.

You might be interested in

Paul has just enough money to buy either 5 erasers and 30 pencils or 10 erasers and 24 pencils. Each eraser costs $0.30. How muc

jasenka [17]

Each pencil will cost $0.25

6 0

3 years ago

Please soleeeeeeeeeeeeèeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee

sineoko [7]

Step-by-step explanation:

Answer is 99. I am pretty sure.

8 0

3 years ago

At a carnival, Cody bought 15 tickets. If he used 6 tickets trying to win the ring toss game, what is the ratio of tickets he ha

Liono4ka [1.6K]

15-6=9

<span>9:6 simplified to 3:2
</span>
The ratio is 3:2

7 0

4 years ago

Read 2 more answers

Item 2<br> Question 1<br> Solve 6x≥−42. Graph the solution.

o-na [289]

Answer:

x ≥ -7

Step-by-step explanation:

Divide both sides by 6

Then to graph it, you can make a number line

8 0

3 years ago

Read 2 more answers

Plssss help in need of answers soon

vfiekz [6]

My guess is that you're doing the Law of Cosines? You have everything you need for that except the angle theta, which is the thing you need to find. It's set up like this: (8)^2 = (10)^2 + (5)^2 -[2(10)(5)cos A] I used A instead of theta. Doing that math, you have: 64 = 100 + 25 -[ 100 cos A]; 64 = 125 - 100 cos A;
-61 = - 100 cos A; -61 / -100 = cos A; .61 = cos A. Now use your inverse function on your calculator to find cos^-1(.61) and that equals 52.4

5 0

3 years ago

Read 2 more answers