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Marina86 [1]
3 years ago
11

Which of the following is a true statement?

Mathematics
1 answer:
stepladder [879]3 years ago
6 0
We need to find a expression that is true. Let's try out every one of them until we get a right answer.

If n + 14 = -15 then n = -1.07143

Replace n with -1.07143.

-1.07143 + 14 = <span>12.92857
</span>
<span>12.92857 does not equal 15.

</span>So, the first option is incorrect.

<span>If 14 + n = -15, then n = -1

Replace n with -1

14 + (-1) = 13

13 is not equal to -15.

</span><span>If 14 + n = -15, then n = -29.0 

Replace n with -29.0

</span>-29.0 + 14 = -15

This expression is indeed true.

So, the answer to this question is <span>C If 14 + n = -15, then n = -29.0 </span>
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Describe how to determine the average rate of change between x = 3 and x = 5 for the function f(x) = 3x3 + 2. Include the averag
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Answer:

<u><em>I HOPE IT WILL WORK</em></u>

Step-by-step explanation:

As  for average rate of change we know

A(x)=f(5)-f(3)/(5-3)

where

f(x)=3 x 3 + 2       (1)

putting x=5 we get

f(5)=3(125)+2 =377

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hence putt in (1)  we get

A(x)=294/2 =146

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4 years ago
Use the data to create a scatter plot URGENT!!!!!!
iVinArrow [24]

Answer:

The scatter plot of the given data is shown below.

Step-by-step explanation:

The given data is

Time (years)               Number of participants

      3                                       22

      6                                       25

      9                                       28

      12                                       14

      15                                       17

      18                                       20

      21                                       15

      24                                       9

In the scatter plot the x-axis represents the time in years and the y intercept represents the number of participants.

The scatter plot of the given data is shown below.

3 0
4 years ago
Please help me find X
tensa zangetsu [6.8K]

Answer:

<em> 50° </em>

Step-by-step explanation:

x° = 180° - (102° + 28°) =<em> 50°</em>

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Step-by-step explanation:

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Y= -¹⁄₂₀ (x-25)² + 30
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Answer:

y=80.05

Hope this helps

Step-by-step explanation:

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