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Komok [63]
3 years ago
10

Draw a model, solve problem 5 ×14

Mathematics
1 answer:
slega [8]3 years ago
4 0

Answer:

70


Step-by-step explanation:


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Use the discriminant to describe the roots of each equation. Then select the best description.
Paha777 [63]

The <em>quadratic</em> equation 3 · x² + 7 · x - 2 = 0 has a <em>positive</em> discriminant. Thus, the expression has two <em>distinct real</em> roots (<em>real</em> and <em>irrational</em> roots).

<h3>How to determine the characteristics of the roots of a quadratic equation by discriminant</h3>

Herein we have a <em>quadratic</em> equation of the form a · x² + b · x + c = 0, whose discriminant is:

d = b² - 4 · a · c     (1)

There are three possibilities:

  1. d < 0 - <em>conjugated complex</em> roots.
  2. d = 0 - <em>equal real</em> roots (real and rational root).
  3. d > 0 - <em>different real</em> roots (real and irrational root).

If we know that a = 3, b = 7 and c = - 2, then the discriminant is:

d = 7² - 4 · (3) · (- 2)

d = 49 + 24

d = 73

The <em>quadratic</em> equation 3 · x² + 7 · x - 2 = 0 has a <em>positive</em> discriminant. Thus, the expression has two <em>distinct real</em> roots (<em>real</em> and <em>irrational</em> roots).

To learn more on quadratic equations: brainly.com/question/2263981

#SPJ1

7 0
2 years ago
What is 0.04 converted to a fraction in simplest form?
Pavel [41]
1/25
think of it as 4/100
4 goes into 100 4 times
1/25+1/25+1/25+1/25=4/100
7 0
3 years ago
A2+B2B=c2 what is the value of a2
igor_vitrenko [27]
The value of a2 will be I dont care 
4 0
3 years ago
Convert 30 feet per second to miles per minute.
Amanda [17]

We know that:

1 mile = 5280 ft

1 minute = 60 sec

 

Therefore to convert this we simply use the conversion factors:

 

(30 ft / s) * (60 s / 1 min) * (1 mi / 5280 ft) = 0.34 mi / min

 

 

So we got 0.34 miles per minute.

8 0
3 years ago
I WILL GIVE BRAINLIEST TO WHOEVER IS CORRECT!!!
GrogVix [38]
It is g(x) =2 there I guessed hope correct.
8 0
2 years ago
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