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8_murik_8 [283]
2 years ago
15

-

Mathematics
1 answer:
ivanzaharov [21]2 years ago
8 0

The quadratic regression equation of the table of values is y = 0.71x² - 5.04x + 3.76

<h3>How to determine the regression equation?</h3>

The table of values is given as:

x: 0     1       2    3     4     5   6

y: 4.1 -0.9 -3.9 -5.1 -4.1 -4.1 -1.1

To determine the quadratic regression equation, we make use of a graphing calculator

From the graphing calculator, we have the following calculation summary:

a = 0.7, b = -5.04 and c = 3.76

A quadratic regression equation is represented as:

y = ax² + bx + c

Hence, the quadratic regression equation of the table of values is y = 0.71x² - 5.04x + 3.76

Read more about regression equations at:

brainly.com/question/25226042

#SPJ1

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A TV has a listed price of $510.99 before tax. If the sales tax rate is 8.25%, find the total cost of the TV with sales tax incl
Trava [24]

The most appropriate choice for sales tax will be given by-

Total cost of the TV with sales tax included  is $553.15

What is sales tax?

Sales tax is a tax imposed by the government on the price of a commodity for the sale of that commodity. Imposing sales tax on a product increases the price of the product. Nowadays, sales tax has been replaced by Goods and Service Tax (GST).

Here,

Listed price of television = $510.99

Rate of sales tax = 8.25%

Sales tax to be added = \frac{8.25}{100}\times 510.99

                                     = $42.16

Total cost of the TV with sales tax included = $(510.99 + 42.16)

                                                                        = $553.15

To learn more about sales tax, refer to the link:

brainly.com/question/9437038

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5 0
1 year ago
There are 115 students in a music club 73 of them are girls what is the ratio of the number of boys and girls
REY [17]

Answer:

73:42

Step-by-step explanation:

1115-73=42

G : B

73 : 42

8 0
3 years ago
Worth 2 marks and I need it urgently pls
melisa1 [442]
4c6d3 x 3c4d

4 x 3=12
12c
you add the powers so 6+4=10
12c10
d3 x d=d3
12c10d3


that is the answer i think

4 0
3 years ago
Find mZCAB.<br> 110°<br> А A<br> 2 + 6x<br> 12x<br> B
ryzh [129]

Answer:

12x+2+6x=110(Exterior angle is equal to sum of two non adjacent angles)

18x=110-2

18x=108

x=108/18

x=6

Therefore the value of x is 6

4 0
3 years ago
Each of 7 students reported the number of movies they saw in the past year. Here is what they reported. 15,11,15,18,13,4,5. Find
mars1129 [50]

Answer:

11.6

Step-by-step explanation:

Add all numbers together and divide by 7.

7 0
3 years ago
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