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Aloiza [94]
3 years ago
15

Find the discriminant of the quadratic 3x^2 - 7x + 6.

Mathematics
1 answer:
kiruha [24]3 years ago
7 0
Hello!

*Solve the equation: 
3x^{2} -7x+6 = 0

<span>**Separating the coefficients
</span><span>a = 3, b = -7 e c = 6

</span><span>***Calculating the value of the discriminant
</span>

Δ = b² – 4ac

Δ = (-7)² – 4.3.6

Δ = 49 – 72

Δ = - 23

p.s.: <span>Δ <0. When the discriminant is less than zero, there are no real roots.</span>


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50 POINTS please help me I really need it
Mars2501 [29]

A Domain is the lowest and highest x value (-5,-2) is how it is formatted this means -5 to -2

Range is the lowest to highest Y value so (-3,3)

(-5,-2) - domain

(-3,3) - range

B Intercept are when the line crosses the acis labeled x so

(-2,0) and (2,0)

C F(1) means what is x when y is equal to 1 so we must estimate this

(-1,1) and (1.5,1)

D f(x) = -3 is when y is -3 so we look at the graph to see

-5 and 4 are the values for x

E f(x) < 0 means when y is above the x axis

This is between the x values of -2 and 2 or (-2,2)


7 0
3 years ago
A number x is more than -6 and at most 8. Write it in a inequality
geniusboy [140]
-6<x≤8 would be the inequality
5 0
3 years ago
If you roll two number cubes ,what is the probability of their sum being 9 or higher?
bija089 [108]

Answer:

5/18

Step-by-step explanation:

When two cubes are rolled there are 36 possibilities

Each dice has 6 equally like outcomes so possibilities are

(1,1)  (1,2)          (1,3)          (1,4)         (1,5)         (1,6)

(2,1)  (2,2)  (2,3)  (2,4)  (2,5)  (2,6)

(3,1)  (3,2)  (3,3)  (3,4)  (3,5)  (3,6)

(4,1)  (4,2)  (4,3)  (4,4)  (4,5)  (4,6)

(5,1)  (5,2)  (5,3)  (5,4)  (5,5)  (5,6)

(6,1)  (6,2)  (6,3)  (6,4)  (6,5)  (6,6)

Now we look at the pair that has sum equal to 9

(3,6) (4,5) (5,4) (6,3) that has sum of 9

Probability of sum is 9 = \frac{4}{36}

we look at the pairs that has sum greater than 9

(4,6) (5,5)(5,6) (6,4)(6,5)(6,6)

Probability of sum greater than 9 = \frac{6}{36}

Probability of sum 9 or higher = P(sum 9) + P(greater than 9)

= \frac{4}{36}+\frac{6}{36}= \frac{10}{36}=\frac{5}{18}



4 0
3 years ago
A = bh; A =96, b = 12 What does h equal?
goldenfox [79]
The answer is 8. Wolfram|Alpha is great for these kinds of questions. Go to http://www.wolframalpha.com/ and math-y classes are much easier tbh
6 0
3 years ago
Two points on a line are ( 3, 8 )and ( -3, 2 ). What is the slope of the line?
professor190 [17]

Answer:

1

Step-by-step explanation:

m=(y2-y1)/(x2-x1)

m=(2-8)/(-3-3)

m=-6/-6

m=1

8 0
2 years ago
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