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andreyandreev [35.5K]
3 years ago
6

Given the pre-image point A (4,-9) and it's image point A' (12, -27), determine the scale factor

Mathematics
1 answer:
WARRIOR [948]3 years ago
8 0

Answer:

scale factor = 3

Step-by-step explanation:

To determine the scale factor, calculate the ratio of the image x and y coordinates to the original x and y coordinates, that is

scale factor = \frac{12}{4} = \frac{-27}{-9} = 3

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On a certain day the temperature changed a rate of -3 degrees Fahrenheit per hour how long did it take for the temperature to ch
zhannawk [14.2K]

Answer: is 11 hours.

3 0
2 years ago
Help help help help help
Nesterboy [21]

Answer:

b =  \sqrt{65}

Step-by-step explanation:

{b}^{2}  +  {4}^{2}  =  {9}^{2}  \\  {b}^{2} + 16 = 81 \\  {b}^{2}   = 81 - 16 \\  {b}^{2}  = 65 \\ b =  \sqrt{65}

I hope I helped you^_^

8 0
2 years ago
Finding an irrational number between which given pair of numbers supports the idea that irrational numbers are dense
Fittoniya [83]

Answer:

3.33 and 1/3

Step-by-step explanation:

"Dense" here means that there are infinite irrational numbers between two rational numbers. Also, there are infinite rational numbers between two rational numbers. That's the meaning of dense. Actually, that can be apply to all real numbers, there always is gonna be a number between other two.

But, to demonstrate that irrationals are dense, we have to based on an interval with rational limits, because the theorem about dense sets is about rationals, and the dense irrational set is a deduction from it. That's why the best option is 2, because that's an interval with rational limits.

8 0
2 years ago
Find the equation of the graphed line.?
kiruha [24]

Answer:

c.  y = x - 6.

Step-by-step explanation:

It's a straight line whose general form is y = mx + c.

The slope is (0, -6) / (6, 0)

= -6 / -6

= 1 so the coefficient of x , (m)  is 1.

The value of  c ( the y-intercept) is -6.

7 0
2 years ago
You are offered a 30--day trial period at your dream job. However, the owner of the company is a little unusual so the pay optio
S_A_V [24]

Answer:

The question is not complete but from the flow of thought, the question seems to be about what your choice will be between option 1 and option 2.

The correct answer is

option 2

Step-by-step explanation:

The question is asking you to choose an option that pays more after 30 days. In other to determine the more beneficial option, we will compare both options and select the one that pays more. This is done as follows:

option 1: $60,000 per day, after 30 days =

60,000 × 30 = $1,800,000

option 2 = $5,368,709.12 after 30 days

From the total amounts after 30 days of the two options listed above, option 2 is higher than option 1 by $3,568,709. Therefore, option 2 is a better choice.

4 0
3 years ago
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