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Llana [10]
3 years ago
15

Please , need help on 11 and 12!!! thank you for your time !!!

Mathematics
1 answer:
Jobisdone [24]3 years ago
8 0
For 11 it's b and for 12 it's a
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Please help, 50 points! :) <br>PDF attached below
Sveta_85 [38]

Answer:

See below

Step-by-step explanation:

Attachment 1 : (a) Remember that it mentions x is the years since 1900. That would mean that the table is a bit different. To create this " new table " simply subtract 1900 from the years provided, and substitute.

To create this equation we will need a regression calculator. The equation will be as follows.

y = 0.125873x - 7.11916 ( note that you can double check this equation be substituting points from the table in the attachment )

(b) 2025 - 1900 = 126 years,

y = 0.125873(125) - 7.11916 = $ 8.614965

Minimum Wage : $ 8.614965

Attachment 2 : The rest of the problems can be solved similarly...

(a) Quadratic Regression Equation : - 0.49311x² + 23.2798x + 996.029

(b) - 0.49311(20)² + 23.2798(20) + 996.029 = 1264.381 mg/cm³

Attachment 3 : (a) Exponential Regression : 9.08292(1.09965)ˣ

(b) 9.08292(1.09965)⁶⁰ = 2713.27743\dots ( About 2713 recommendations )

8 0
3 years ago
Determine if the set of ordered pairs represents a function. Explain why or why not. (2 points)
Nutka1998 [239]

Answer: Depends on the orders pairs

Step-by-step explanation: You didn’t include the ordered pairs so I’ll just do an example.

(1,5). (2,11). And(6,13) Theese orders pairs represent a function because, there are no repeating X values.

(2,5) (2,10) and (5,45)

Theese ordered pairs do NOT represent a function because, the X values repeat.

A function can be linear and nonlinear, they can have repeating Y values but NO repeating X values.

A trick for this is to put a piece of paper and cover sections and see if your line “turns back”.

Hope I helped ^u^

5 0
3 years ago
Can some one help please?!! I’m struggling
aliina [53]

Answer:

7x + 4y

Step-by-step explanation:

We have to write an equivalent expression of the given expression in standard form.

The expression is - 5(x - 4y) + 2(6x - 8y)

= -5(x) - 5(- 4y) + 2(6x) + 2(- 8y)  

{Applying the distributive property of multiplication}  

= - 5x + 20y + 12x - 16y

= (-5x + 12x) + (20y - 16y)  

{Separating the x and y terms}

= 7x + 4y (Answer)

4 0
3 years ago
For the given triangle find the exact value for cos(A) assume angle C is a right angle
lubasha [3.4K]
Remember that cosine is adjacent/hypotenuse. We can plug in the values given for this triangle.
Cos(A) = 5/13.
Don’t use a decimal answer as rounding would be necessary, and therefore you wouldn’t be giving an exact value. Leave your answer as 5/13.
3 0
3 years ago
The product of a number is not less than 45. The inequality for the statement is.​
ale4655 [162]

Answer:

x is greater than or equal to 45

Step-by-step explanation:

7 0
3 years ago
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