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lakkis [162]
3 years ago
13

September 28: On this date in 1918 a parade in Philadelphia triggered a flu epidemic in the city that eventually killed 12,000 p

eople there, despite the city being quarantined once the problem became apparent.This was part of the worldwide flu pandemic that killed an estimated 50 million people. Across the United States, 675,000 people fell victim; in Latin America, 1% of the population died, in Africa, 1.5%, in Asia, 3.5%. Twenty percent of the population of India died, as did 10% of Tahiti’s population.The population of Philadelphia was about 2 million and the U.S. population was 103.21 million in 1918. What percentage of the population of the U.S. died during the pandemic of 1918?
Mathematics
1 answer:
Margaret [11]3 years ago
5 0
48% 
I think, hope this helps
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The width of a rectangle is 20 inches. What must the length be if the perimeter is at least 180 inches?
Sidana [21]
20x2 = 40 in width
180-40= 140
140/2=70
70 inches
3 0
3 years ago
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F(x)=2x^2 -5 , simplify f(x+h)/h , where h≠0
7nadin3 [17]

Answer:

\huge\boxed{\dfrac{f(x+h)}{h}=\dfrac{2x^2+4xh+2h^2-5}{h}}

\huge\boxed{\dfrac{f(x+h)}{h}=\dfrac{2x^2-5}{h}+4x+2h}

Step-by-step explanation:

f(x)=2x^2-5\\\\\dfrac{f(x+h)}{h}=\dfrac{2(x+h)^2-5}{h}=\dfrac{2(x^2+2xh+h^2)-5}{h}\\\\\dfrac{f(x+h)}{h}=\dfrac{2x^2+4xh+2h^2-5}{h}\\\\h\neq0

4 0
2 years ago
Tim rides 3.2 miles on his bike everyday How far does Tim ride in one week<br>​
kipiarov [429]

Answer:

22.4

Step-by-step explanation:

Just multiply 3.2 by 7 to get 22.4 miles a week. Easy.

8 0
2 years ago
About how much farther is it to drive than to walk directly from building A to building B? Round to the nearest whole number.
Sav [38]

Answer:

A. 183 meters

Step-by-step explanation:

Building A and building B are 500 meters apart. There is no road between them, so to drive from building A to building B, it is necessary to first drive to building C and then to building B. About how much farther is it to drive than to walk directly from building A to building B? Round to the nearest whole number. A) 183 meters B) 250 meters C) 366 meters D) 683 meters

Find distance BC

Cos (60°)=BC / AB (Adjacent divided by the hypotenuse)

Cos (60°)=1/2

BC=a

AB=500

Cos (60°)=BC / AB

1/2=a/500

1/2 * 500=a

250=a

a=250m

Find distance AC

Sin(60°)=AC/AB (opposite side divided by hypotenuse)

Sin(60°)=√3/2

AC=b

AB=500

Sin(60°)=AC/AB

√3/2=b/500

√3/2 * 500=b

250√3=b

b=433m

Distance AC and BC=AC+BC

433m+250m=683m

Subtract the distance AB from AC+BC

= 683m - 500m

=183m

Answer is A. 183 meters

8 0
3 years ago
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