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xxTIMURxx [149]
3 years ago
7

3 (2x -1) = -2 (x +3)

Mathematics
1 answer:
Misha Larkins [42]3 years ago
6 0

Answer:

x = 3/8 (but the fraction is negative.)

Decimal form if needed.

x = - 0.375

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Which form most quickly reveals the vertex?
Jet001 [13]

Answer:

Step-by-step explanation:

A

A will give you the roots (the x intercepts) just by reading the numbers and doing a small adjustment.

x + 1 = 0

x = - 1            So one of the roots is (-1,0)

x + 5= 0

x = - 5           The other root is (-5,0)

A is not the answer.

B

I have graphed B so that you can see that A is true. See below, Even so, B is in standard form and it is not the answer.

C

The answer is C. The vertex is at 2,27

x - 2 = 0

x = 2

The maximum value is located at 27 which is just read.

That point (2,27) is plotted on the graph.

6 0
3 years ago
Given the following exponential function, identify whether the change represents growth or decay, and determine the percentage r
NISA [10]

The <em>exponential</em> function y = 290 · 0.31ˣ reports a decay as its <em>growth</em> rate is less than 1 and greater than 0. Its <em>percentage</em> rate of decrease is equal to 69 %.

<h3>How to determine the behavior of an exponential function</h3>

<em>Exponential</em> functions are <em>trascendental</em> functions, these are, functions that cannot be described <em>algebraically</em>. The <em>simplest</em> form of <em>exponential</em> functions is shown below:

y = a · bˣ     (1)

Where:

  • a - Initial value
  • b - Growth rate
  • x - Independent variable.
  • y - Dependent variable.

Please notice that this kind of <em>exponential</em> function reports a <em>growth</em> for b > 1 and <em>decay</em> for b < 1 and b > 0. According to the statement we have the function y = 290 · 0.31ˣ, then we conclude that the exponential function given reports a <em>decay</em>.

The <em>percentage</em> rate of decrease is determined by the following formula:

100 × (1-0.31) = 100 × 0.69 = 69 %

The <em>percentage</em> rate of decrease related to the <em>exponential</em> function is 69 %.

To learn more on exponential functions: brainly.com/question/11487261

#SPJ1

7 0
1 year ago
[6+(10-8)*7]+5. <br><br> *need help ASAP*
White raven [17]

Step-by-step explanation:

Given

[ 6 + ( 10- 8 ) *7 ] + 5

= [ 6 + 2 * 7] + 5

= [ 6 + 14 ] + 5

= 20 + 5

= 25

6 0
3 years ago
Read 2 more answers
Jenna has 38 coins. She uses 19 coins to buy a notebook. How many coins does she have left?
marusya05 [52]

Answer: 19 coins

Step-by-step explanation:

38-19=19

To check, take any one of the nubers and replace it with x, and when you solve for x. you'll get that number back. For example:

Let x represent the amount used to buy a notebook

19+x=38

x=38-19

x=19

7 0
2 years ago
Read 2 more answers
Is the point (2,5) on the graph of f(x)= 3x-1​
erastovalidia [21]

Answer:

yes. it is.

Step-by-step explanation:

7 0
3 years ago
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