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vazorg [7]
3 years ago
6

A town had about 2120 acres of pine trees 40 years ago. Only about 13% of the pine trees remain. How many acres of pine trees re

main?
Mathematics
1 answer:
Vera_Pavlovna [14]3 years ago
6 0
2120/100=21.2
21.2x13=275.6
Therefore there are 275.6 acres remaining of pine trees.
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Three investors own a company. One partner owns One-fourthof the company, while the second partner owns Two-fifths of the compan
Lelechka [254]

Answer:

7/20

Step-by-step explanation:

2/5 = 8/20

1/4 = 5/20

20/20 - 13/20 = 7/20

5 0
3 years ago
What is the answer to this question? Please
AnnZ [28]

Answer:

y² + 8y + 16

Step-by-step explanation:

Given

(y + 4)²

= (y + 4)(y + 4)

Each term in the second parenthesis is multiplied by each term in the first parenthesis, that is

y(y + 4) + 4(y + 4) ← distribute both parenthesis

= y² + 4y + 4y + 16 ← collect like terms

= y² + 8y + 16

7 0
3 years ago
Identify the constant of proportionality from the graph. 11 10 9 8 7 6 5 3 2 1 1 2 3 4 5 6 7 8 9 10 11 O A. B. 1 C. 5 D. 4​
uranmaximum [27]
We need a picture on what it look like
6 0
2 years ago
-7x + 6= 27 what does x stand for ?
ivolga24 [154]

-7x + 6 = 27

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x = -3 (Divide -7 from both sides)

3 0
3 years ago
Given vectors A (2,-1,5), B (4,3,-2) & C (5,4,0), find:?
MrRissso [65]
A) 4a - 3b + 2c

4(2, -1, 5) - 3(4, 3 , -2) + 2(5, 4, 0) = (8, -4, 20) - (12, 9, - 6) + (10, 8, 0) =

= (8 - 12 + 10 , -4 - 9 + 8 , 20 + 6 + 0) = (6, - 5, 26)

Answer: (6, - 5, 26)

b) magnitude of vector b

\sqrt{4^2+3^2+(-2)^2} = \sqrt{16+9+4} = \sqrt{29} ~ 5.4

c) vector of length 7 parallel to vector c

=> m(5,4,0) = (5m,4m,0)

=>    \sqrt{(5m)^2+(4m)^2+0}= \sqrt{25m^2+16m^2}= \sqrt{41m^2}=m \sqrt{41}=7

=> m = 7 / √41 ≈ 1.093

=> 1.093 (5, 4, 0) = (5.465 , 4.372, 0)

Answer: (5.465 , 4.372 , 0)
7 0
3 years ago
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