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matrenka [14]
3 years ago
14

Keith purchases a cell phone plan, which includes a cell phone and cell phone

Mathematics
1 answer:
Damm [24]3 years ago
3 0

Answer:

640

Step-by-step explanation:

Rate?

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CDs are $15.25 each how much will it cost to buy 3
Sonja [21]

Question

CDs are $15.25 each how much will it cost to buy 3


Answer:

<h2>45.75 $</h2>

Step-by-step explanation:

1 CD = $ 15.25

multiply the unit price by 3

15.25 * 3 = 45.75 $



7 0
3 years ago
S is the midpoint of RT, RS = 4x + 4, and ST = 6x. Find RT.<br><br> Type your answer...
shtirl [24]

Answer:

Step-by-step explanation:

Ask your teacher

6 0
2 years ago
Read 2 more answers
Which of the -values are solutions to the following inequality?
Triss [41]
The answer is 48 i think
7 0
2 years ago
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
8 A television show uses 15 minutes of every hour for commercials, leaving
Mars2501 [29]
C 1:3


15:45 can be simplified by dividing by 15 to give you a ratio of 1minute if commercials for every 3 minutes of the actual show
8 0
3 years ago
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