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baherus [9]
3 years ago
15

What is the surface area of the box? use your answer to problem 2 to write an equation

Mathematics
1 answer:
sammy [17]3 years ago
8 0

Answer:

S=2lw+2lh+2wh

Step-by-step explanation:

If we consider the structure of a box with length l, width w, and height h, we may note that it is formed from six rectangular faces. The bottom and top faces are rectangles with sides of length l and w. Two of the side faces have side lengths l and h. And the remaining two side faces have side lengths w and h.

As the area of a rectangle is the product of its side lengths, we can put this together to get the surface area S of the box as

S=2lw+2lh+2wh

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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
I just need help with b and c
My name is Ann [436]

Answer:

B. Carl yearns more per hour

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to find what carl yearns hourly you divide 45 by 3 which is 15.

(Explaination of answer for question b)

C isnt hard once you find y=15x.

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3 years ago
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Answer:

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