1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Dafna1 [17]
4 years ago
7

Lake Chad in Africa had a surface area of about 10,000 square miles in 1963. Because of climate changes and increased water usag

e by humans, the surface area decreases to about 850 square miles in 2001. By what percent did the surface area change from 1963 to 2001?
Mathematics
1 answer:
9966 [12]4 years ago
8 0

Answer:

Answer is 91.5%

Step-by-step explanation:

In 1963= 10,000 sq miles; In 2001= 850 sq miles

  • Now applying formula of percentage of decrease we get:

% = Decrease in Amount/ Actual Amount

  • Applying values in formula:

= 10000-850/10000

= 9150/10000

% = 0.915

In percentage we get 91.5%

You might be interested in
Can you help me with this problem I can't find it out
AnnZ [28]
He estimates that he will earn $44,800.

12% of 40,000 is 4,800
40,000+4,800=44,800
8 0
4 years ago
Read 2 more answers
Free Promo Moneybag Yo - Fire?
alexandr402 [8]

Answer:

thxssss

Step-by-step explanation:

ur super nice have a great day

8 0
3 years ago
Read 2 more answers
The Venn diagram shows all of the elements in sets A, B and ξ. Find the elements in (A ∩ B) U (A U B)’
marusya05 [52]

This is impossible to answer without knowing what the sets A and B contain (and what ξ even refers to - universal set?).

However, we have

(A U B)' = A' ∩ B'

so that

(A ∩ B) U (A U B)' = (A ∩ B) U (A' ∩ B') = (A U A') ∩ (B U B')

If ξ is indeed the universal set, then both A U A' = ξ and B U B' = ξ, so we end up with ξ ∩ ξ = ξ.

8 0
3 years ago
A cable hangs between two poles of equal height and 35 feet apart. At a point on the ground directly under the cable and x feet
gayaneshka [121]

Answer:

293.38 pounds

Step-by-step explanation:

We are given that

Distance between poles=35 feet

h(x)=10+0.1(x^{1.5})

Weight of cable=10.4 per linear foot

We have to find the weight of the cable.

Differentiate w.r.t

h'(x)=0.1(1.5)x^{0.5}=0.15x^{0.5}

s=2\int_{0}^{17.5}\sqrt{1+(h'(x))^2}dx

s=2\int_{0}^{17.5}\sqrt{1+(0.15x^{0.5})^2}dx

s=2\int_{0}^{17.5}\sqrt{1+0.0225x}dx

Let 1+0.0225x=t

dx=\frac{1}{0.0225}dt

s=\frac{2}{0.0225}\int_{0}^{17.5}\sqrt{t}dt

s=\frac{2}{0.0225}\times\frac{2}{3}[t^{\frac{3}{2}}]^{17.5}_{0}

s=2\times \frac{2}{3\times0.0225}[(1+0.0255x)^{\frac{3}{2}]^{17.5}_{0}

s=\frac{4}{3\times 0.0225}((1+0.0225(17.5))^{\frac{3}{2}-1)

s=28.21

Weight of cable=28.21\times 10.4=293.38pound

8 0
3 years ago
Help! Pls I’m struggling
QveST [7]

Answer:

the x^2 column would have a "22" between the 4 & 5

Step-by-step explanation:

x x^2

0 0

1 1

2 4

3 9

4 16

5 25

6 36

6 0
3 years ago
Read 2 more answers
Other questions:
  • Jill sold half of her comic books and then bought sixteen more. She now has 36. With how many did she begun?
    7·2 answers
  • Jiffy Mix in Chelsea, Michigan has a machine that fills the Jiffy Corn Muffin Mix boxes with Mix. It dispenses corn muffin mix w
    15·1 answer
  • in june , a camp has 325 campers and 26 counselors, in july,265 campers leave and 215 new campersarrive.How many counselors does
    9·1 answer
  • What ordered pair is the vertex of y=|x+5|-1
    15·1 answer
  • What is the equation of the line that is parallel to the line y = 1/3x + 4 and passes through the point (6, 5)?
    12·1 answer
  • Is there a dilation that maps shape II onto shape I? If so, what is the scale factor and is it an enlargement or a reduction?
    14·2 answers
  • What fraction is equivalent to -5/9
    15·1 answer
  • Solve the system of equations. \begin{aligned} & -4x+7y = 20 \\\\ & y=3x+15 \end{aligned} ​ −4x+7y=20 y=3x+15 ​ x=x=x, e
    6·1 answer
  • A store window has 154 aquire ft of glass the window is 7 ft tall what is the perimeter
    5·1 answer
  • CAN SOME PLEASE HELP ITS AN I EMERGENCY
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!