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aleksley [76]
3 years ago
13

Evaluate the expression below. a = -8, b = - 4.1, and c = 9.

Mathematics
1 answer:
wolverine [178]3 years ago
5 0

Answer:

-9+(-4.1)-(-8)

= -9-4.1+8

= -5.1

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3 years ago
Rowan reads at a constant rate of 1.5 pages per minute and has already
saul85 [17]

Using linear functions, it is found that Rowan and Kennedy will have read the same number of pages in 10 minutes.

What is a linear function?

  • A linear function is modeled by:

y = ax + b

In which:

  • a is the slope, which is the rate of change, that is, by how much y changes when x changes by 1.
  • b is the y-intercept, which is the value of y when x = 0.

For Rowan, we have that:

  • He has already read 20 pages, hence the y-intercept is b = 20.
  • He reads 1.5 pages per minute, hence the slope is a = 1.5

Then:

y_R = 1.5x + 20

For Kennedy, we have that:

  • He has already read 25 pages, hence the y-intercept is b = 25.
  • He reads 1 page per minute, hence the slope is a = 1

Then:

y_K = x + 25

They will have read the same number of pages after x minutes, for which:

y_R = y_K

Then:

1.5x + 20 = x + 25

0.5x = 5

x = \frac{5}{0.5}

x = 10

To learn more about linear function, you can take a look at brainly.com/question/25823744

3 0
3 years ago
A pyramid has a rectangular base with dimensions of 3 feet by 7 feet. The height of the rectangular pyramid is 6 feet. Water fil
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Answer:

Step-by-step explanation:

Michael and Juanita are interested in the amount of sand required to build a sand pyramid of the size that they see while at a sand sculpture exhibit.  They carefully measure the width of the square base of the sand pyramid which is 4 feet and the height of the pyramid which is 5 feet.  How much sand is required to build this sand pyramid?

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Answer:

2 long x tiles and 3 long x tiles are like terms.

Step-by-step explanation:

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Answer:

Yes

Step-by-step explanation:

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7 0
3 years ago
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