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Verdich [7]
2 years ago
8

F(x)=x3 −4x even odd or neither

Mathematics
2 answers:
elixir [45]2 years ago
5 0

Answer:

The function would be odd

Dennis_Churaev [7]2 years ago
4 0

The answer is neither.

Let's take an odd number and substitute.

  • f(3) = 3³ - 4(3)
  • f(3) = 27 - 12
  • f(3) = 15 (odd)

Now, let's take an even number.

  • f(4) = 4³ - 4(4)
  • f(4) = 64 - 16
  • f(4) = 48 (even)

Since both even and odd numbers are possible, it is neither.

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The Pythagorean Theorem can be used in many real-world scenarios.
ArbitrLikvidat [17]

Part 1:

You know the height of a telephone pole and the distance the support cable is from the base of the telephone pole, but you don't know the length of the cable. The cable needs to be replaced so you need to calculate the length.

What is the length of the cable?

Part 2 and Part 3: See the attached picture:

8 0
4 years ago
Read 2 more answers
If 20 people are participating in an activity, and 15 people decide not to participate. How would i calculate the percentage of
Marta_Voda [28]

Step-by-step explanation:

Solution,

No. of people who participated= 20

No. of people who didn't participated= 15

Total number of people= 20+15= 35

Now,

Percentage of people who didn't participated

=No. of people who didn't participated/Total number of people×100%

=15/35×100%

=42.86%

Again,

Percentage of people who participated

participated=No. of people who participated/Total number of people×100%

=20/35×100%

=57.14%

4 0
3 years ago
Please help!!!!! pls pls pls asap
kow [346]

Answer: 78

Step-by-step explanation:

First, we want to find the area of the outer triangles. Remember that the equation to finding the area of a triangle is (l x h) x 1/2. So, let’s substitute the values into the equation. It’ll be (6 x 7) x 1/2. Let’s solve! 6 x 7 = 42. Then, 42 x 1/2 = 21. But let’s not forget that we only found the area of one triangle. We still need to find the area of the other outer triangles. So, to do this, we take 21 and multiply by 3 since the other outer triangles have the same dimensions. We would get 63 as our total area for the outer triangles.

Next, we need to find the area for the inner triangle. We will use the same equation: (l x h) x 1/2. Let’s substitute! (6 x 5) x 1/2 will be our final equation. Now, let’s solve. 6 x 5 = 30. 30 x 1/2 = 15. So, as a process of elimination, our area for the inner triangle is 15.

Finally, we need to add the total areas we found together. Our total areas were 63 and 15. Let’s put this into an equation: 63 + 15 = ?. So, 63 + 15 = 78. So, after a long process, 15 is our answer!

Hope this helped!

6 0
4 years ago
1. last question. please help me out thank you. ill mark you brainlist
spayn [35]

Answer:

-7

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Find the standard deviation of the distribution in the following situations. (Round your answers to two decimal places.) (a) MEN
Arturiano [62]

Answer:

a) 15.579

b) 39.019

Step-by-step explanation:

a) For the top 2% the z-value from the z table

z = 2.054

thus,

z = \frac{\textup{X-Mean}}{\sigma}

here

X = 132

Mean = 100

thus,

2.054 = \frac{\textup{132-100}}{\sigma}

or

σ = 15.579

b) Using tables, we get for Z = 0.89 the value of 0.8133 and for Z= 0.90 the value of 0.8159

By interpolation, values for 0.815 and we get Z=0.897

thus,

z = \frac{\textup{X-Mean}}{\sigma}

here

X = 220

Mean = 185

thus,

0.897 = \frac{\textup{220-185}}{\sigma}

or

σ = 39.019

6 0
3 years ago
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