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melomori [17]
3 years ago
13

Determine the surface of the cover of a textbook that has a length of 11 inches, a width of 8 inches, and a height of 3 inches.

Mathematics
1 answer:
Ronch [10]3 years ago
7 0

The answer is 264 inches when you use

the formula L × W × H which is 11 × 8 ×

3 = 264 inches

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Please help I’m struggling so bad
Anastaziya [24]

Answer:

a) (100,70)

b) the point of intersection means that Auto-Loans and Rent-a-Car companies will both have a daily cost of $70 when the distance driven is 100km.

c) Auto-Loans: y = 1/2x+20

Rent-a-Car: y = 1/5x+50

d) this means that the third company would have a y-intercept of 0 (its daily cost and distance would start at 0) and it would also have a daily cost of $70 when the distance driven is 100km. this would also mean that the third company's line would have a slope of 7/10

Third company's line: y=7/10x+0

(I'm sorry if I got anything wrong, but I hope this helps!)

Step-by-step explanation:

a) the point of intersection is where the two lines meet

this is at (100, 70)

b) in the context of this problem, the point of intersection means that Auto-Loans and Rent-a-Car companies will both have a daily cost of $70 when the distance driven is 100km.

c) Auto-Loans: y = 1/2x+20

Rent-a-Car: y = 1/5x+50

*this is because the slope of a line can be found by rise/run, and the y-intercept can be found by where it is located on the y-axis, since x would be 0.)

(for example, for Auto-Loans, the slope would be rise/run which in this case would be 10/20 or 1/2. the y-intercept is 20 since the y is 20 when it is on the y-axis).

d) if a third company's line starts at (0,0) and has the same point of intersection, this means that the third company would have a y-intercept of 0 (its daily cost and distance would start at 0) and it would also have a daily cost of $70 when the distance driven is 100km. this would also mean that the third company's line would have a slope of 7/10

Third company's line: y=7/10x+0

3 0
3 years ago
Please help me out!!!!
Kobotan [32]

Answer:

All real numbers

Step-by-step explanation:

4(x+1) = 4x+4

Distribute

4x+4 = 4x+4

Subtract 4x from each side

4x+4-4x = 4x+4-4x

4=4

This is always true so there are infinite solutions

3 0
3 years ago
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Write the standard form of the line that contains a slope of -1/2 and y-intercept of 1. Include your work in your final answer.
NemiM [27]
The slope intercept form would be y= -1/2x + 1 and to get it into standard form all you have to do is move the -1/2 x to the other side, making it 1/2x + y = 1
5 0
3 years ago
A rectangle is 3 1/4 feet long and 2 1/3 feet wide what is the distance around the rectangle
Zina [86]

3 \frac{1}{4}  =  \frac{13}{4}
2 \frac{1}{3}  =  \frac{7}{3}
\frac{39}{12}  +  \frac{28}{12}  =
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3 0
3 years ago
1/4n - 5 what is the answer
Marysya12 [62]

Answer:

n/4 - 5 thats what I got hopes its right

5 0
3 years ago
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