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Finger [1]
3 years ago
8

Which of the following statements are true of the discriminant? The discriminant is b2 – 4ac in the quadratic formula. The discr

iminant is the denominator in the quadratic formula. The discriminant is the radicand of the quadratic formula. The discriminant is the value under the radical in the quadratic formula. The discriminant is the value in front of the radical in the quadratic formula.
Mathematics
2 answers:
steposvetlana [31]3 years ago
7 0
A is true If im not mistaking 
Vlada [557]3 years ago
5 0

SOS

Answer:

The answers are:

  1. The discriminant is b^2-4ac in the quadratic formula.
  2. The discriminant is the radicand of the quadratic formula.
  3. The discriminant is the value under the radical in the quadratic formula.

<em>Hope this helps!!</em>


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Jennifer has 25 books on her bookshelf. She has 10 fiction books, and the rest are non-fiction books. If Jennifer selects a game
saul85 [17]

Answer:

<h2>3/5</h2>

Step-by-step explanation:

If Jennifer has 25 books on her bookshelf and she has 10 fiction books, the number of non-fiction books she has will be 25-10 = 15 non- fiction books.

Probability is the likelihood or chance that an event will occur.

Probability = Expected outcome of event/total outcome.

Since we want the expression that represents the probability that the book she selects will be a non-fiction book, our expected outcome will be 15(the total non fiction she selected)

The total outcome will be the total number of books i.e 25.

Probability that she elects non fiction book = 15/25

= 3/5

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Find the common difference for the sequence shown.<br><br><br><br> 56, 49, 42, 35, ...
NemiM [27]

Answer:

7

Step-by-step explanation:

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Find the height of a cone with a diameter of 12 m whose volume is 113 m3
Tems11 [23]
9 m I’m 90% sure lol
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Which of the following shows the length of the third side, in inches, of the triangle below?
Alex777 [14]

\bf \textit{using the pythagorean theorem} \\\\ c^2=a^2+b^2\implies \sqrt{c^2-b^2}=a \qquad \begin{cases} c=\stackrel{hypotenuse}{61}\\ a=adjacent\\ b=\stackrel{opposite}{11}\\ \end{cases} \\\\\\ \sqrt{61^1-11^2}=a\implies \implies \sqrt{3600}=a\implies 60=a

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Noah wants to buy a skateboard that usually sells for $79.99. All merchandise is discounted by 12%. What is the total cost of th
beks73 [17]

Answer:

$74.36 sorry all i got

Step-by-step explanation:

First, we need to determine the sales price of the skateboard. The formula for find the discounted prices is:

Where:

is the sales price of the item: what we are solving for in this part of the problem.

is the regular price of the item: $79.16 for this problem.

is the discount rate: 12% for this problem. "Percent" or "%" means "out of 100" or "per 100", Therefore 12% can be written as  

12

100

Substituting and calculating  

gives

79.16

79.16

12

100

79.16

949.92

100

79.16

9.4992

69.6608

69.66

rounded to the nearest cent.

Now we can find the total price of the item with tax included. The formula for this is

#t = p + (p * r)

Where, this time:

is the total price: what we are solving for in this problem.

is the price of the item: it is the sales price of the item for this problem which is $69.66

is the tax rate: 6.75% or, using the same rule as in the formula above:  

6.75

100

Substituting and calculating  

gives:

69.66

69.66

6.75

100

69.66

470.205

100

69.66

4.70205

74.36205

74.36

rounded to the nearest cent.

Noah would pay a total cost (with the discount and after tax) of $74.36

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