Ask question

Ask question

All categories

3 years ago

13

A certain forest covers an area of 4200km2 Suppose that each year this area decreases by 5% What will the area be after 10 years

?
Use the calculator provided and round your answer to the nearest square kilometer.

1 answer:

Ne4ueva [31]3 years ago

7 0

Each year 1 - 5% = 95% of the acreage survives.

A(10) = 4500*0.95^10 = 2694.32

Answer: 2694.32

You might be interested in

Find the total capacity of twenty five containers of cranberry juice if each bottle holds 5 quarts 1 pint 6 oz

ElenaW [278]

None of the above is the correct answer

6 0

3 years ago

Jason designed an arch made of wrought iron for the top of a mall entrance. The 11 segments between the two concentric circles a

masha68 [24]

Diameter of the bigger semi-circle is 15 m
circumference of the bigger semi-circle = πd = 15π

diameter of the smaller semi-circle = 15 - 2(1.25) = 15 - 2.5 = 12.5 m
circumference of the smaller semi-circle = πd = 12.5π m

Total length of the segments between the two circles = 11(1.25) = 13.75 m

Total length of wrought iron used = 15π + 12.5π + 13.75 = 100 m

7 0

3 years ago

Read 2 more answers

Find the height of the angle . A. 171.4 B. 83.1 C.46.1 D. 108.6

Kazeer [188]

Of What Angle? Did You Include The Picture?

5 0

2 years ago

The two non-parallel sides of an isosceles trapezoid are each 7 feet long. The longer of the two bases measures 22 feet long. Th

Orlov [11]

The length of the diagonal and the shorter base are 17. 24 feet and 18. 7 feet long respectively.

<h3>How to determine the length</h3>

The cosine rule is given as;

$c = \sqrt{a^2 + b^2 - 2ab cos \alpha }$

c = length of the diagonal

a = base length = 22 feet

b = 7 feet

$c = \sqrt{7^2 + 22^2 - 2 * 7 * 22 cos 40}$

$c = \sqrt{533 - 308 * 0. 7660}$

$c = \sqrt{533 - 235. 93}$

$c = \sqrt{297. 072}$

$c = 17. 24$ feet

Using sine rule

$\frac{a}{sin A } = \frac{c}{sin C}$

$\frac{a}{sin 70} = \frac{17. 24}{sin 40}$

Cross multiply

$a$ × $sin 60$ = $c$ × $sin 70$

$a$ × $0. 8660$ = $17. 24$ × $0. 9397$

$a = \frac{16. 20}{0. 8660}$

a = 18. 7 feet long

Thus, the length of the diagonal and the shorter base are 17. 24 feet and 18. 7 feet long respectively.

Learn more about isosceles trapezoid here:

brainly.com/question/10187910

#SPJ1

5 0

2 years ago

⚠️Attention ⚠️HELPPPPPP!!!!!

german

Answer:

it would be B.

Step-by-step explanation:

6 0

2 years ago