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kap26 [50]
3 years ago
14

Show two way to factor -12x + 24 - 18y

Mathematics
1 answer:
Arlecino [84]3 years ago
8 0
I’m not sure what there asking but -6(2x-4+3y)
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Kwan's parents bought a home for $50,000 in 1997 just as real estate values in the area started to rise quickly. Each year, thei
poizon [28]

A. First let us start with the linear model.

The equation is in the form of y = m x + b

Calculating for the slope m:

m = (309,587 – 50,000) / (2007 – 1997)

m = 25,958.7

 

Subsituting:

y = 25,958.7 x + b

Taking x = 1997, y = 50,000. Solve for b:

50,000 = 25,958.7 (1997) + b

b = -51,789,523.9

 

The complete equation is therefore:

y = 25,958.7 x - 51,789,523.9

 

 

B. The exponential model has the following form:

y = a b^x

where a and b are constants

 

Taking x1= 1997, y1 = 50,000; x2 = 2007, y2 = 309,587

50,000 = a b^1997

309,587 = a b^2007

 

Combining in terms of a:

50,000 / b^1997 = 309,587 / b^2007

b^2007 / b^1997 = 309,587 / 50,000

b^10 = 6.19174

b = 1.2

 

Substituting:

y = a 1.2^x

 

Solving for a:

50,000 = a 1.2^1997

a = 3.75 x 10^-154

 

The complete equation is:

y = 3.75 x 10^-154 * 1.2^x

3 0
3 years ago
A girl buys a shirt that was originally $45 but is now $15. What is the rate of change?
jok3333 [9.3K]
So first we find the change
45 to 15=45-15=30

change is 30
rate of change=(change)/(original)

original=45
change=30
30/45=10/15=2/3=0.66666666=66%
rate of change is 66.66%
4 0
3 years ago
Which algebraic expression could NOT represent the phrase below?
skad [1K]

Answer:

B

Step-by-step explanation:

because 4 and 3 are grouped together you would add them first. this would change the outcome of the problem.

6 0
3 years ago
Read 2 more answers
Which of the following values of x are solutions to the equation 4x^2+x-60=0​
Vladimir79 [104]

Answer:

x = 15/4, - 4

Step-by-step explanation:

I'm not sure :p

5 0
2 years ago
Will give brainliest
Rashid [163]

Answer:

thanks for the points ily

5 0
3 years ago
Read 2 more answers
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