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Karo-lina-s [1.5K]
2 years ago
12

Scientists estimate there are 70,000 species insects in each acre of the

Mathematics
2 answers:
lesya [120]2 years ago
7 0

Answer:

there are 700 species in every acre

Step-by-step explanation:

divide the amount of species by the amount of acres.

kozerog [31]2 years ago
7 0

Answer:

7,000,000

Step-by-step explanation:

If there is 70,000 in each acre, just multiply 70,000 times 100 acres.

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3 years ago
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Evaluate the expression x+2y when x=2 and y=−2.5.
kow [346]

Answer: -3

Step-by-step explanation:

If you plug in the numbers, the equation would look like: 2+2(-2.5)

Multiply 2 by -2.5 and you'll get -5 as your product. Add 2 and -5 together to get the sum of -3.

4 0
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What is the average rate of change of the function over the interval x = 0 to x = 8? f(x)=2x−1/3x+5 Enter your answer, as a frac
max2010maxim [7]

Answer:

15 2/3, or 47/3


Step-by-step explanation:

I'm going to assume, correctly or not, that you actually meant f(x) = 2x^2 - (1/3)x + 5.  Double check on this right now, please.

If I'm right, then evaluate f(x) at x = 0 and x = 8:

f(0) = 5

and

f(8) = 2(8)^2 - (1/3)(8) + 5 = 128 - 8/3 + 5 = 133  - (2 2/3), or:   130 1/3

Then the average rate of change of f(x) = 2x^2 - (1/3)x + 5 over the interval [0,8] is:

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a. r. c. = ------------------- = ---------------- = 15 2/3, or 47/3

                     8 - 0                  8

3 0
3 years ago
(show ur work) Each bag of gourment popcorn for a school fundraiser costs $6.75. The total amount received from the popcorn sale
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Answer:

725 Boxes of Popcorn

Step-by-step explanation:

You can do it simply by just typing in the calculator 4893.75÷6.75.

But I can show my work. Picture below

5 0
2 years ago
A triangle has a base of 12 cm and a height of 10 cm. Use the expression 1/2 base height to find the area of the triangle
Sergio [31]

Answer:

Area: 60

Step-by-step explanation:

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2. The multiply that product by 1/2 or you can divide it by 2 to get the area of the triangle.

5 0
3 years ago
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