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4 years ago

Is f(x)=x(4-x)-2 a quadratic function? Explain.

Mathematics

1 answer:

Tanya [424]4 years ago

6 0

It expands to
4x - x^2 - 2

Yes it is quadratic.

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Prior to the 2008 Republican primary for President, the December 21, 2007 Grand Haven Tribune had an article about results from

harkovskaia [24]

Answer:

The sample size is n = 621

Voters Relative Frequency Frequency

Romney 0.21 130

Huckabee 0.19 118

Guiliani 0.12 75

John McCain 0.10 62

Ron Paul 0.04 25

Fred Thompson 0.04 25

Duncan Hunter 0.01 6

Tom Tancredo 0.01 6

Undecided votes 0.28 174

Step-by-step explanation:

From the question we are told that

The number of voters is n = 621

The voter election aspirants and their relative frequency are

Romney , 0.21

Huckabee , 0.19

Guiliani , 0.12

John McCain ,0.10

Ron Paul , 0.04

Fred Thompson 0.04,

Duncan Hunter 0.01

Tom Tancredo 0.01

Undecided votes 0.28

This undecided vote is used to represent votes that did not count and it is obtained by subtracting the other relative frequencies from 1 (i.e 100%)

Generally the frequency is mathematically represented as

Romney , 621 * 0.21 = 130

Huckabee , 621 * 0.19 = 118

Guiliani , 621 * 0.12 = 75

John McCain 621 * 0.10 = 62

Ron Paul , 621 * 0.04 = 25

Fred Thompson 621 * 0.04 = 25

Duncan Hunter 621 * 0.01 = 6

Tom Tancredo 621 * 0.01 = 6

Undecided votes 621 * 0.28 = 174

So the table is

Voters Relative Frequency Frequency

Romney 0.21 130

Huckabee 0.19 118

Guiliani 0.12 75

John McCain 0.10 62

Ron Paul 0.04 25

Fred Thompson 0.04 25

Duncan Hunter 0.01 6

Tom Tancredo 0.01 6

Undecided votes 0.28 174

5 0

3 years ago

A store owner paid 15 dollars for a book. She marked up the price of the book by 40 percent to determine its selling price.

SpyIntel [72]

Part a: 21 dollars because you multiply .40 with 5 and get 6. you add the 6 to the 15 and get 21.
part b: 30.21 because you multiply 38 by .25 and get the answer for that and then subtract that number from 38. then you multiply 0.06 by 38 and when u get that number, add that to the discounted price.

6 0

3 years ago

3. The math department needs to buy new textbooks and laptops for their

Alenkasestr [34]

Let they be x.

Cost of textbooks + laptops cant greater than total amount.

(cost of 1 textbooks * number of textbooks) + (cost of 1 laptop * number of laptops ≤ 6500

(30*116) + (x*439) ≤ 6500

3480 + 439x ≤ 6500

439x ≤ 3020

x ≤ 6.8(approx)

Last natural number is 6, says, they can buy 6 laptops at max.

3 0

4 years ago

Carnival m charges an entrance fee of $5. 00 and $0. 50 per ticket for rides. Carnival p charges and entrance fee of $7. 00 and

aniked [119]

Answer is 25 is in quizziz

8 0

3 years ago

Alonzo works mowing lawns and babysitting. He earns $8.20 an hour for mowing and $7.90 an hour for babysitting.How much will he

Y_Kistochka [10]

Answer:

Alonzo would earn $65.3

Step-by-step explanation:

8.2*7=57.4

7.9*1=7.9

57.4+7.9=65.3

6 0

3 years ago