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mezya [45]
3 years ago
10

A tornado traveled 260 miles in 4 hours. if the average rate at which the tornado is moving slows by 20%, how many miles will th

e tornado travel in the next 2 hours?
Mathematics
2 answers:
faltersainse [42]3 years ago
7 0

Answer:

104

Step-by-step explanation:

lianna [129]3 years ago
5 0
Given that the tornado traveled 260 miles in 4 hours, its initial speed is 65 mi/h. Then, slowing by 20% every hour, the speed after 2 hours can be calculated through the equation,
                          speed = (65 mi/h) x (1-0.2)^2
                             speed = 41.6 mi/h
Thus, the speed of the tornado after 2 hours is approximately 41.6 mi/h. 
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The surface area of the cone is 43.75π cm2. What is the slant height of the cone? with a radius o 5 cm
yKpoI14uk [10]
The surface area of the cone is calculated through the equation, 
                    A = πr² + πrl
where r is the radius and l is the slant height. Substituting the known values to the equation,
              43.75π = π(5 cm)² + π(5 cm)(l)
l is 3.75 cm. Thus, the slant height of the cone is 3.75 cm. 
3 0
3 years ago
Which of the functions have a range of all real numbers? Check all that apply.
Svetach [21]

Answer:

B. y = tan x  and  C. y = cot x

Step-by-step explanation:

Range:

range is defined as the set of values that any given function y=f(x), can take for which the x values are defined. It is the value that y can take for the values of x.

Given:

From the given options

the range of tanx and cotx are all real numbers

as the period of tanx and cotx are π

where as range of secx is all real numbers except π/2 + n*π i.e.

(-∞ , -1] U [1 , + ∞)

And range of cscx is all real numbers except n*π i.e.

(-∞ , -1] U [1 , + ∞)

So from the given option:

option B and C are correct while A and D are not !

6 0
3 years ago
Read 2 more answers
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Lena [83]

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4 0
3 years ago
Which problem solving strategy would be best to solve this problem? How many different ways can you give change for 45 cents?
hodyreva [135]
I think A since working backwards and looking for a pattern wouldn't help, maybe C but im not sure
6 0
3 years ago
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Sally had to raise money for a plane ticket for ever 20 minutes it was 24.00 $ the plane ride was 3 hours how much would it be i
seropon [69]

$216

20=$24

20*3 $24*3

60=$72

*3   *3

180=$216

(180=3 hours)

4 0
3 years ago
Read 2 more answers
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