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Sphinxa [80]
3 years ago
8

(assume no variable equals 0) PLEASE HELP

Mathematics
1 answer:
saw5 [17]3 years ago
5 0

(3n^2 + 1) + (8n^2 - 8)\\= 3n^2 + 1 + 8n^2 - 8\\= 11n^2 - 7

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Answer:im not really sure but i think log3(3) Logarithm base 3 of 3 is 1 .

Step-by-step explanation:

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You are buying 30 acres of farm land at $12,000 per acre. What is the total cost?
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Answer: 360,000 dollars becuz u have to multiply them together

BRAINIEST?



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3 years ago
Read 2 more answers
Find the volume of the composite solid. Round your answer to the nearest tenth
Vesna [10]

Answer:

V = 1206.3 ft^{3}

Step-by-step explanation:

This shape is made up of a cylinder on the bottom and a cone on the top. We'll find the volumes of these shapes separately and then add them together.

Volume of a cylinder = area (of the base) x height

Substitute in the formula for the area of a circle.

V(cylinder) = \pir^{2} x h

Substitute in the values for the radius (8) and height (4)

V(cylinder) = \pi x 8^{2} x 4

Evaluate using a calculator

V(cylinder) = 804.2477

To the nearest tenth, V(cylinder) = 804.2

Volume of a cone = \frac{\pi r^{2}h }{3}. This is the area of the circular part of the cone (\pi r^{2}), multiplied by the height from the point to the base, all divided by 3.

Substitute in the values for the radius of the circle (8) and the height (6)

V(cone) = \frac{\pi 8^{2} 6 }{3} (On the top it's \pi x 8^{2} x 6)

Evaluate using a calculator

V(cone) = 402.1239

To the nearest tenth, V(cone) = 402.1

Total volume = V(cylinder) + V(cone)

= 804.2 + 402.1

= 1206.3 ft^{3}

7 0
3 years ago
When downloading a large file from the internet Alice interrupted the download by closing her computer. Later that evening she r
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Using the slope concept, it is found that the rate of download of the file is of 1920 MB/s.

<h3>What is the slope?</h3>

The slope of a linear function is given by the <u>change in the output divided by the change in the input</u>.

In this problem:

  • 3 minutes since resuming the download 6720 total MegaBytes (MB).
  • 5 minutes since resuming the download 10560 total MegaBytes (MB) of the file had been downloaded..
  • Hence, in 2 minutes, there was a change of 10560 - 6720 = 3840 MB, which means that the slope is:

m  = \frac{3840}{2} = 1920

The rate of download of the file is of 1920 MB/s.

You can learn more about the slope concept at brainly.com/question/25934562

8 0
2 years ago
Jack collected 31.1 pounds of cans to recycle and plans to collect 5.9 more pounds each week. Write an equation in slope-interce
butalik [34]

Answer:36.10

Step-by-step explanation: add 31+5= 36 the other one 1 +9 = 10 that's the answer please mark me as brainlest

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