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Blizzard [7]
3 years ago
11

What is the discriminant of the equation 3x2-7x+6=0 Help guys :(

Mathematics
1 answer:
Elenna [48]3 years ago
4 0
The formula for a discriminant is b^2-4ac
so, (-7)^2 -4(3)(6) simplifies to 49-72 which equals -23
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Rani is making rice pudding. She uses
Goryan [66]

Rani will use 3/2 cups of white rice for 3 cups of milk.

<h3>What is termed as unitary method?</h3>

"It is a method in which we obtain the value of a single unit by subtracting the value of multiple units and thus the value of multiple units by subtracting the value of a single unit."

  • The value of several things is given in the unitary method, and we must either figure out the significance of more or lesser things.
  • To do so, we must first determine the value of one item by division and then determine the value of ever more or fewer items by multiplication.

Now, for the given question;

1 cup of white rice is required for every 2 cups of milk by Rani.

Thus,

2 cups of milk ------> 1 cup of white rice.

So, using unitary method. Divide both side by 2.

1 cups of milk ------> 1/2 cup of white rice.

Now, calculate for the 3 cups of milk.

multiplying both side by 3.

3 cups of milk ------> 3/2 cup of white rice.

Therefore, the 3/2 cups of white rice required for the 3 cups of milk.

To know more about unitary method, here

brainly.com/question/28540270

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6 0
1 year ago
—2+7+(-4).<br> Evaluate
MakcuM [25]

Answer:

1

Step-by-step explanation:

-2 + (-4) = -6 + 7 = 1

evaluate = solve

5 0
3 years ago
Read 2 more answers
130 apples at the party. There were 3 times as many yellow apples as green apples, there were twice as many red apples as yellow
kipiarov [429]

Answer: There were 78 red apples at the party.

Step-by-step explanation:

This situation can be represented by the equation  

x + 3x + 2(3x) = 130    where x is the number of green apples, 3x is the number of  yellow apples and 2(3x) is the number  of red apples.

Now solve for x

x +3x +2(3x) =130

4x + 6x = 130

10x  = 130

x =  13  

Now we know that x is 13 so put it into the expression for red apples and solve for the actual number of red apples.

2 * (3*13)  = ?

2 * 39 = 78  

6 0
3 years ago
What are the coordinates of the foci of the conic section shown below?
Naddik [55]

Answer:

((y + 2) ^ 2)/25 - ((x - 3) ^ 2)/4 = 1 O A. ( (3, - 2 plus/minus sqrt(21)) B. (3, - 2 plus/minus sqrt(29)) O B. O c. D . (3 plus/minus sqrt(21), - 2); (3 plus/minus sqrt(29), - 2)

6 0
3 years ago
Factoring without Combining Like Terms
Alex_Xolod [135]

Answer:

(x + 3)(2x + 5)

Step-by-step explanation:

Given

2x² + 6x + 5x + 15 ← grouping the terms

= (2x² + 6x) + (5x + 15) ← factor each group

= 2x(x + 3) + 5(x + 3) ← factor out (x + 3) from each term

= (x + 3)(2x + 5) ← in factored form

8 0
4 years ago
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