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fomenos
2 years ago
15

A forest covers 72,000 acres. A survey finds that ​0.7% of the forest is​ old-growth trees. How many acres of​ old-growth trees

are​ there?
Mathematics
1 answer:
Vsevolod [243]2 years ago
6 0
Jsjsjsjjdkdnxkwmkamskxmdkdkd
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What do u have 2 do to solve
Nastasia [14]
5x^2 + 6x +13.88 is what is is simplified hope it helped a bit 
8 0
3 years ago
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Further mathematics: Find the derivative of the function x^2 y + (xy)^3 +3x=0 at (-1 , 3)​
vesna_86 [32]

Answer:

3.

Step-by-step explanation:

Implicit differentiation:

x^2 y + (xy)^3 + 3x = 0

x^2 y + x^3y^3 + 3x = 0

Using the product rule:

2x* y + x^2*dy/dx + 3x^2 y^3 + x^3* (d(y^3)/dx) + 3 = 0

2xy + x^2 dy/dx + 3x^2 y^3 + x^3* 3y^2 dy/dx + 3 = 0

dy/dx(x^2 + 3y^2x^3) =  (-2xy - 3x^2y^3 - 3)

dy/dx=  (-2xy - 3x^2y^3 - 3) / (x^2 + 3y^2x^3)

At the point (-1, 3).

the derivative =  (6 - 81 - 3)/(1 -27)

= -78/-26

=  3.

8 0
2 years ago
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Chelsey wants to join a fitness club. The fitness club charges an initial membership fee of $55 and a monthly fee of $19.50. She
Kay [80]
So if you have to pay 55 out front and then continue to pay 19.50 monthly the equation will look like this:
19.50*m + 55 = x
(M stands for month)
She has 250 dollars to spend so add that in for x
<span>19.50*m + 55 = 250. 
Use inverse operations.
250-55 and 55-55
19.50*m = 195
195/19.50 and 19.50/19,50
m=10
Your answer is 10</span>
4 0
3 years ago
Draw the grid of 3y- 4x=12
mylen [45]
This is the grid of 3y - 4x = 12

8 0
2 years ago
I dont understand this.
creativ13 [48]

Answer: J

Step-by-step explanation:

4 0
2 years ago
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