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2 years ago

A certain forest covers an area of

2 answers:

8 0

Okay. I'll use a formula that my math teacher taught me.

3400(1-0.07)^15
3400(0.93)^15
3400(0.33670086205)
1144.78293098 ( which rounds to about 1145 square km )

Ede4ka [16]2 years ago

6 0

Answer:

1144.78 Km^2

Step-by-step explanation:

If the forest covers an area of 3400 km^2 and it decreased by 7%, the new area covered after a year will be equal to 3400 less the product of 3400 and 7%

= 3400 - 7% * 3400

= 3400 (1 - 0.07)

After the second year, the area becomes

= 3400 (1 - 0.07) - 7% * 3400 (1 - 0.07)

= 3400 (1 - 0.07)(1 - 0.07)

= 3400 (1 - 0.07)²

Following this pattern, the area after 15 years

= 3400 (1 - 0.07)^15

= 1144.782931 km^2

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Brian is walking 2 3/4 of a mile everyday. He does this for one week.

laiz [17]

Answer:

1. 11/4

2. 19 1/4

Step-by-step explanation:

To change into an improper fraction:

((2 times 4)+3)/4

=11/4

To calculate total distance:

(11/4) times 7

=77/4

=19 1/4

6 0

2 years ago

R/5 - 6 = -1<br> r=1<br> r=5<br> r=10<br> r=25

posledela

R = 30 because r = 1,5,10,25
30/5+1=7
6+1=7

5 0

3 years ago

Evaluate log1∕6 36. please help

Sholpan [36]

$\log_{\tfrac 16} 36 \\\\\\=\dfrac{\ln 36}{ \ln \left(\tfrac 16\right)}\\\\\\=\dfrac{ \ln 6^2}{\ln (6^{-1})}\\\\\\=\dfrac{2 \ln 6}{-1 \ln 6}\\\\= - 2$

4 0

2 years ago

Pls help and no links thankyou <3

Hitman42 [59]

Do the second one hope this helps

8 0

2 years ago

If LW = 5x + 2 and LJ = 11x + 2 in the parallelogram below. Find LW.

WITCHER [35]

Answer:

A. 12

Step-by-step explanation:

Recall: one of the properties of a parallelogram is that the diagonals bisect each other. This means that:

LJ = 2(LW)

11x + 2 = 2(5x + 2)

11x + 2 = 10x + 4

11x + 2 - 2 = 10x + 4 - 2

11x = 10x + 2

11x - 10x = 10x + 2 - 10x

x = 2

✅LW = 5x + 2

Plug in the value of x

LW = 5(2) + 2

LW = 10 + 2 = 12

3 0

2 years ago