Work out the first four terms and the 10th term of the quadratic
sequence with
a T(n) = 2n2 + 4
b T(n) = 3n2-3
c T(n) = -3n2 + 7
d T(n) = 4n? -5

Answers

Answer 1

Answer:

a. The first four terms and the 10th term are 6, 12, 22, 36, ......., 204

b. The first four terms and the 10th term are 0, 9, 24, 45, ......., 297

c. The first four terms and the 10th term are 4, -5, -20, -41, ......., -293

d. The first four terms and the 10th term are -1, 11, 31, 59, ......., 395

Step-by-step explanation:

a.

T(n) = 2n² + 4 is the rule of the sequence, where

n is the position of the number in the sequence

∴ For the first term, n = 1

→ Substitute n by 1 in the rule above to find T(1)

∵ T(1) = 2(1)² + 4 = 2(1) + 4 = 2 + 4

T(1) = 6

→ For the second term, n = 2

∵ T(2) = 2(2)² + 4 = 2(4) + 4 = 8 + 4

T(2) = 12

→ For the third term, n = 3

∵ T(3) = 2(3)² + 4 = 2(9) + 4 = 18 + 4

T(3) = 22

→ For the fourth term, n = 4

∵ T(4) = 2(4)² + 4 = 2(16) + 4 = 32 + 4

T(4) = 36

→ For the tenth term, n = 10

∵ T(10) = 2(10)² + 4 = 2(100) + 4 = 200 + 4

T(10) = 204

The first four terms and the 10th term are 6, 12, 22, 36, ......., 204

b.

T(n) = 3n² - 3 is the rule of the sequence

→ For the first term, n = 1

∵ T(1) = 3(1)² - 3 = 3(1) - 3 = 3 - 3

T(1) = 0

→ For the second term, n = 2

∵ T(2) = 3(2)² - 3 = 3(4) - 3 = 12 - 3

T(2) = 9

→ For the third term, n = 3

∵ T(3) = 3(3)² - 3 = 3(9) - 3 = 27 - 3

T(3) = 24

→ For the fourth term, n = 4

∵ T(4) = 3(4)² - 3 = 3(16) - 3 = 48 - 3

T(4) = 45

→ For the tenth term, n = 10

∵ T(10) = 3(10)² - 3 = 3(100) - 3 = 300 - 3

T(10) = 297

The first four terms and the 10th term are 0, 9, 24, 45, ......., 297

c.

T(n) = -3n² + 7 is the rule of the sequence

→ For the first term, n = 1

∵ T(1) = -3(1)² + 7 = -3(1) + 7 = -3 + 7

T(1) = 4

→ For the second term, n = 2

∵ T(2) = -3(2)² + 7 = -3(4) + 7 = -12 + 7

T(2) = -5

→ For the third term, n = 3

∵ T(3) = -3(3)² + 7 = -3(9) + 7 = -27 + 7

T(3) = -20

→ For the fourth term, n = 4

∵ T(4) = -3(4)² +7 = -3(16) + 7 = -48 + 7

T(4) = -41

→ For the tenth term, n = 10

∵ T(10) = -3(10)² + 7 = -3(100) + 7 = -300 + 7

T(10) = -293

The first four terms and the 10th term are 4, -5, -20, -41, ......., -293

d.

T(n) = 4n² - 5 is the rule of the sequence

→ For the first term, n = 1

∵ T(1) = 4(1)² - 5 = 4(1) - 5 = 4 - 5

T(1) = -1

→ For the second term, n = 2

∵ T(2) = 4(2)² - 5 = 4(4) - 5 = 16 - 5

T(2) = 11

→ For the third term, n = 3

∵ T(3) = 4(3)² - 5 = 4(9) - 5 = 36 - 5

T(3) = 31

→ For the fourth term, n = 4

∵ T(4) = 4(4)² - 5 = 4(16) - 5 = 64 - 5

T(4) = 59

→ For the tenth term, n = 10

∵ T(10) = 4(10)² - 5 = 4(100) - 5 = 400 - 5

T(10) = 395

The first four terms and the 10th term are -1, 11, 31, 59, ......., 395


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Step-by-step explanation:

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Step-by-step explanation:

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Answers

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Step-by-step explanation:

Answer:

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Step-by-step explanation:

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five people are going to be seated in these chairs, from left to right The number of different ways they can be seated is

A)30
B)60
C)120
D)240
E)360​

Answers

Answer:

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Step-by-step explanation:

The number of people as well as the number of chairs is 5. Therefore, there are exactly 120 ways in which they can be seated.

In baseball, two statistics, the ERA (Earned Run Average) and the WHIP (Walks and Hits per Inning Pitched), are used to measure the quality of pitchers. For both measures, smaller values indicate higher quality. The following computer output gives the results from predicting ERA by using WHIP in a least-squares regression for the 2017 baseball season.

Variable DF Estimate SE T
Intercept 1 −5.0 0.26 −19.3
WHIP 1 6.8 0.14 47.4
Which of the following statements is the best interpretation of the value 6.8 shown in the output?

a. ERA is predicted to increase by 6.8 units for each 1 unit increase of WHIP.


b. WHIP is predicted to increase by 6.8 units for each 1 unit increase of ERA.


c. For a pitcher with 0 units of WHIP, the ERA is predicted to be approximately 6.8 units.


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Answers

I got A and E I hope that works

Helpz
A stockbroker earns $53,000 annually plus 0.8% of his clients’ total investment portfolio. If his clients’ investments total $1.2 million, what is his commission this year?

Answers

Answer:

$62,600

Step-by-step explanation:

$53,000 + 0.8% of 1.2 mill is the answer0.8% = 0.8/100 = 0.0080.008 x 1,200,000 = 9,60053,000 + 9,600 = 62,600.

Answer:

9,600

Step-by-step explanation:

Ok the mistake yall were doing was adding 9,600 with 53,000 when they were asking for the commission so basically plus it says "what is his commission this year?"

.8%

.8 x 100 = .008

1,200,000 x .008 = 9,600

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Answers

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o 2
o 3
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o 5

Answers

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Answers

Answer:

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Answer:

It is communicative property :)

Step-by-step explanation:

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B. (-3,0)
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Answers

Answer:

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Step-by-step explanation:

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The answer is option C (4,0)

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            slope(m)=tan∅=y axis/x axis.

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solving the equation:-

y = (x − 5)(x2 − 7x + 12)

⇒y= 2x²-7x²+12x-10x+35x-60

⇒y=-5x²+37x-60

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Simplify

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a2-b2

Answers

Answer:

 -8a2b + 8a - b2

Step-by-step explanation:

STEP

1

:

Equation at the end of step 1

 (8a -  23a2b) -  b2

STEP  2 :

STEP  3 :

Pulling out like terms

3.1     Pull out like factors :

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Trying to factor a multi variable polynomial :

3.2    Factoring    8a2b - 8a + b2  

Try to factor this multi-variable trinomial using trial and error  

Answer:

-8a^2b - b^2 + 8a

Have a nice day and stay safe. Pls rate me and like.

: )

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Answers

Answer:

a

Step-by-step explanation:

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Answers

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Answers

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9x+24=56

Move constant to the right

9x=56-24

9x=32

Divide 9x on both sides

Answer is x=32/9

WHAT DO I DO NEXT!!!!!!!!!!
Names
Item 1
Price
Item 2
Price
Item 3
Price
Subtotal
Tip
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Your name
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4.99
burger
3.99
Drink
small
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3
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family
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small
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10
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Friend #2
me
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mocha
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Friend #3
Family and family
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Burger with stuff in side
4.99
Two drinks for two people.
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c
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Step-by-step explanation:

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Answers

Answer:

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Step-by-step explanation:

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Answer:

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Step-by-step explanation:

Hi there !

64% of 225 =

= 64%×225

= 64/100 × 225

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= 144

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Answers

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Answers

Answer:

$18192.50

Step-by-step explanation:

From the information given;

The amount that will be reported on the income statement as net sales can be computed as follows:

Particulars                                             Amount ($)        

Sales revenue $(8600 + 10400)          $19000

Less: Credit card discounts

( contra - revenue)   $(8600 × 3%)         258

Sales discounts

( contra - revenue)

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Sales return and allowances

( contra - revenue )                                    500            

The net sale                                                                          

(reported on the income statement) =  $18192.50  

The algebra teacher said if you square my age then subtract 23 times my age, the result is 50. How old is he?

Answers

Answer:

25

Step-by-step explanation:

Answer:

She is 25

Step-by-step explanation:

25^2 = 625

23*25 = 575

625 - 575 = 50

what is 5x10^-7 as a decimal

Answers

AnsweStep-by-step explanation:

NEED HELP ASAP PLS!!!

A high school club is conducting a cupcake sale at a local fair to raise money for a trip. The club members are baking a total of 444 cupcakes. Each cupcake will sell for 3.00. The display tables cost $75.00 to rent.


Part A:
If n is the Number of cupcakes sold and p is the profit earned, which is the Independent in variable and which is the dependent variable? Explain.

Independent variable:

Dependent variable:

Explain:

Answers

Answer:

independent variable: cupcakes sold

dependent variable: profit earned

explain: no profit earned without cupcakes sold.

Step-by-step explanation:

Answer:

Independent Variable: n = Number of cupcakes sold

Dependent Variable: p =  Profit, no profit without the sale of cupcakes

Step-by-step explanation:

Profit depends on the number of cupcakes sold.

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Answers

Answer:

Yes, you will have enough ribbon

Step-by-step explanation:

16/4 divided by 1/8

32 people will get ribbon

Answer:

Yes you have enough

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Write: x^2 + 8x + 10 in the form (x + a)^2 + b

Answers

Answer:

Step-by-step explanation:

Here, b=8 and c=10, so,

a=b/2

=8/2

=4

and

b=c-a²

=10-16

=-6

∴(x+a)²+b=(x+4)²-6

Pls mark me brainliest

plz help with my 8th grade mathy math

Answers

Answer:

N = 250

Step-by-step explanation:

-17 + [tex]\frac{n}{5}[/tex] = 33

+17         +17

  [tex]\frac{n}{5}[/tex]  =  50

50 x 5 = 250

n = 250

Answer:

n=250

Step-by-step explanation:

-17+n/5=33

n/5=33+17

n=50*5 =250

Check;put n=250,

-17+250/5

= -17+50

=33

What is the equation of the line that passes through the point (5,1) and has a slope
of 6/5?

Answers

Answer:

y-1 = 6/5(x-5) Point slope form

y-1=6/5x - 6

y-1 +1=6/5x -6+1

y = 6/5x - 5 Slope intercept form

y -6/5x + 5 = 6/5x-5 -6/5x+5

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A car drives eighty miles on seven gallons of gas. Determine the number of miles per
gallon.

Answers

Answer:

11.4 miles I hope I helped

Answer:98

Step-by-step explanation:I subtracted 80-7

What is the product?
7•(—4) • (—6)

1. —168
2. —3
3. 17
4. 168

Answers

Answer:

168

Step-by-step explanation:

7*-4=-28

-28*-6=168

Answer: 168

Step-by-step explanation:

Hey there! If you have any questions, feel free to them in the comments below. If you multiply two negative numbers it creates a positive number.

Step 1: Simplify.

7 * 4 = -28

Step 2: Simplify.

-28 * -6

Step 3: Simplify.

168

~I hope this helped you! :)~