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Zigmanuir [339]
3 years ago
5

Which of the following statements are true of the discriminant?

Mathematics
2 answers:
sasho [114]3 years ago
7 0

Answer:

The correct options are A, C and D.

Step-by-step explanation:

We know that,

<em>The quadratic formula for the quadratic equation ax^2+bx+c=0 is x=\frac{-b\pm \sqrt{b^2-4ac}}{2a}.</em>

Now, we have,

The discriminant is D=b^2-4ac.

So, from the options, we get that,

The true statements for the discriminant are,

A: The discriminant is D=b^2-4ac in the quadratic formula.

C: The discriminant is the radicand of the quadratic formula.

D: The discriminant is the value under the radical in the quadratic formula.

OverLord2011 [107]3 years ago
3 0

Answer:

The answer is A,C,D

Step-by-step explanation:


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50 points and brainly
Andre45 [30]

Answer:

Part A:

c = .86*p

c =1.72 for 2 lbs

Part B:

c =.81p

Step-by-step explanation:

Part A:

Total cost = cost per pound * number of pounds

c = .86*p

Let p = 2

c = .86*2

c =1.72

Part B:

Total cost = cost per pound * number of pounds

c = .(.86-.05)*p

c =.81p

5 0
3 years ago
Find the circumference of each circle. Use 3.14 or 22/7 for T. Round to the
Ludmilka [50]

Answer:

4. Circumference = diameter × π

8× 3. 14= 25. 12 ~25. 1

5. 13×3. 14= 40. 82 ~40. 8

6. Diameter= radius ×2

3. 5×2=7

Diameter = 7

7× 3. 14= 21. 98 ~22

6 0
3 years ago
There are 5 green jelly beans, 7 red jelly beans and 8 yellow jelly beans. What percent of the jelly beans are red?
s2008m [1.1K]

Answer: 35%

Step-by-step explanation:

8 + 5 + 7 = 20

50% = 10

25% = 5

10% = 2

5% = 1

25% + 10% = 5+2

35% = 7

5 0
3 years ago
Elliott is 63 inches tall, which is 9inches taller than cousin, Jackson.write and solve an addition equation to find Jackson hei
Nataly [62]

Answer:

J + 9 = 63

Jackson = 54 inches

Step-by-step explanation:

Using the variable 'J' for the height of Jackson, we know that Elliott is Jackson's height, plus an additional 9 inches.  Since Elliott is 64 inches tall in total, we can add Jackson's height plus 9 to get Elliot's height:

Jackson's height + 9 inches = Elliot's height

J + 9 = 63

Subtract '9' from both sides: J + 9 - 9 = 63 - 9 or J = 54

So, Jackson is 54 inches tall.

3 0
3 years ago
The local public pool is a rectangle with two semicircles.
Reptile [31]

The area of the surface of the pool is 7322.64 m².

<h3>What is Area of rectangle?</h3>

The area of rectangle is product of length and its breadth.

i.e., length * breadth

Given: Length = 100 m, Width = 52 m and Diameter = 52 m

Area of rectangle,

= 100 × 52

= 5200 m²

Now,

Area of semicircle = 1/2 × πr²

=1/2 × 3.14 × 26²

= 1061.32 m²

Hence, area of the surface of the pool is

= 1061.32 + 1061.32 + 5200

= 7322.64 m²

Learn more about this concept here:

brainly.com/question/15461609

#SPJ1

8 0
2 years ago
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