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Sholpan [36]
3 years ago
11

What is the discriminant of

Mathematics
1 answer:
erik [133]3 years ago
7 0

Answer:

B  -8

Step-by-step explanation:

The discriminant is b^2-4ac  when the equation is in the form ax^2+bx+c

a=-3  b=-2  c=-1

b^2-4ac

(-2)^2 -4(-3)(-1)

4 -12

-8

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vladimir1956 [14]

Answer:

think it is 183 - π(6)2(12) or J because it is the closes

Volume of packing materials = Volume of box - volume of cylinder

Since the box has same shape as a cube, the volume = L3

Where L is the lenght of the box

Volume of a right circular cylinder = πr2h

where r is the radius and h is the height

Volume of packing materials = L3 - πr2h

hope this will or can (even maybe) helps

3 0
3 years ago
Help me pls i’ll give you a kiss
Likurg_2 [28]

Answer: 152.46 squared centimeters.

Step-by-step explanation:

  1. The equation to find the area of the trapezoid is A = ½ (6.6 + 16.5) 13.2
  2. Distribute ½ into (6.6 + 16.5) . A = (3.3 +  8.25) 13.2.
  3. Add the numbers inside the parenthesis. A =  11.55 * 13.2
  4. Multiply 11.55 * 13.2.   A = 152.46.
3 0
4 years ago
A bouquet of 8
iren2701 [21]

A rose costs $2.5 and a carnation costs $3.

Step-by-step explanation:

Let,

Roses = x

Carnations = y

According to given statement;

8x+10y=50  Eqn 1

6x+12y=51    Eqn 2

Multiplying Eqn 1 by 6;

6(8x+10y=50)\\48x+60y=300\ \ \ Eqn\ 3\\

Multiplying Eqn 2 by 8;

8(6x+12y=51)\\48x+96y=408\ \ \ Eqn 4

Subtracting Eqn 3 from Eqn 4;

(48x+96y)-(48x+60y)=408-300\\48x+96y-48x-60y=108\\36y=108

Dividing both sides by 36;

\frac{36y}{36}=\frac{108}{36}\\y=3

Putting y=3 in Eqn 3;

48x+60(3)=300\\48x+180=300\\48x=300-180\\48x=120

Dividing both sides by 48;

\frac{48x}{48}=\frac{120}{48}\\x=2.5

A rose costs $2.5 and a carnation costs $3.

Keywords: linear equations, subtraction

Learn more about linear equations at:

  • brainly.com/question/11007026
  • brainly.com/question/11207748

#LearnwithBrainly

8 0
3 years ago
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schepotkina [342]

9514 1404 393

Answer:

  d.  76(cos(3π/16) +i·sin(3π/16))

Step-by-step explanation:

To form the product of 38cis(π/8) and 2cis(π/16), multiply the magnitudes and add the angles:

  38cis(π/8) × 2cis(π/16) = (38×2)cis(π/8 +π/16) = 76cis(3π/16)

___

In this context, a·cis(b) ≡ a(cos(b) +i·sin(b))

6 0
3 years ago
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The square of a number is 3 less than four times the number. Which values could be the number? 0 0 -3 O 1​
grigory [225]

Answer:

3 and/or 1.

Step-by-step explanation:

4 0
3 years ago
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