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3 years ago

Writing Polynomial Functions

Mathematics

1 answer:

vitfil [10]3 years ago

4 0

Answer:

Step-by-step explanation:

If the zero occur when x={5, -2, -1} then the equation must be

(x-5)(x+2)(x+1) if expansion is desired

(x^2-3x-10)(x+1)

x^3+x^2-3x^2-3x-10x-10

x^3-2x^2-13x-10

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Help me with this question

enot [183]

Answer:

37.2

Step-by-step explanation:

when you turn the small triangle LMN to its right angle to cover the right angle of KLM, you find that they are similar triangles.

therefore the corresponding side lengths are at the same ratio.

LM/KM = MN/LN

LM = 24

MN = 13

we can get LN via Pythagoras of the small triangle

LN² + MN² = LM²

LN² + 13² = 24²

LN² = 24² - 13² = 576 - 169 = 407

LN = sqrt(407) = 20.174241

now back to our main problem

24/KM = 13/sqrt(407)

24×sqrt(407)/13 = KM = 37.2

4 0

3 years ago

20 POINTS BRAINLIEST

RSB [31]

Answer:

Step-by-step explanation:

Exponential decay should be in this format A = Ao × e^(-kt)

7 0

4 years ago

A group of friends compared the number of text messages they sent in one week.

Ivan

Answer:

<u>The sample that best represents the population is the sample of the last eight friends </u>

Step-by-step explanation:

Let's find out the sample that best represents the population, this way:

Mean of the number of text messages a group of 24 friends sent in one week = 10,700/24 = 445.83

Mean of the sample of the first six friends = 1,850/6 = 308.33

Mean of the sample of the first ten friends = 3,300/10 = 330

Mean of the sample of the last twelve friends = 6,500/12 = 541.67

Mean of the sample of the last eight friends = 4,150/8 = 518.75

<u>The sample that best represents the population is the sample of the last eight friends, because its mean is the closest to the population mean (445.83 and 518.75)</u>

5 0

4 years ago

Leon is posting 12 flyers for the science club and 18 for the music club. He wants to make all the locations identical, with the

oee [108]

Answer:

Leon will post 2 science club flyers in each location

Leon will post 3 music club flyers in each location

The greatest number of locations that Leon can post at is 6 locations

Step-by-step explanation:

Science club flyers = 12

Music club flyers = 18

He wants to make sure that no flyers are left over.

Find the highest common factor of 12 and 18

12 = 1, 2, 3, 4, 6 and 12

18 = 1, 2, 3, 6, 9 and 18

The highest common factor of 12 and 18 is 6

The greatest number of locations that Leon can post at is 6 locations

Science club flyers = 12

= 12 / 6

= 2

Leon will post 2 science club flyers in each location

Music club flyers = 18

= 18 / 6

= 3

Leon will post 3 music club flyers in each location

Leon will post 2 science club flyers in each location

Leon will post 3 music club flyers in each location

The greatest number of locations that Leon can post at is 6 locations

3 0

3 years ago

A taxi driver earned $70.04 one night and then bought himself a meal for $19.98.

ivolga24 [154]

Answer: $50

Step-by-step explanation:

Rounding the numbers, you get 70-20, which equals $50

8 0

3 years ago