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disa [49]
3 years ago
14

On a map, 2 cm represents 30 mi. The actual distance between two towns

Mathematics
1 answer:
nydimaria [60]3 years ago
8 0

Answer:

<h2>5 cm</h2>

Step-by-step explanation:

step one:

Given that the scale of the map is

 2cm to represent 30 miles

That is  every 1 cm is 15 miles in reality

step one:

what we are solving for is the distance in cm on the map so,

1cm rep 15miles

xcm rep 75miles

cross multiply

Xcm= 75/15

X= 5 cm

hence on the map 75miles distance between the two towns is seen as 5 cm

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given the recursive formula for a geometric sequence find the common ratio the 8th term and the explicit formula.did I set these
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Answer:


Step-by-step explanation:

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3)Comparing the given recursive formula a_{n}=a_{n-1}*3

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Explicit Formula =-1*(3)^{n-1}

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we get common ratio =-4

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with standard recursive formula a_{n}=a_{n-1}*r

we get common ratio =-4

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Explicit Formula =-4*(-4)^{n-1}

6)Comparing the given recursive formula a_{n}=a_{n-1}*-2

with standard recursive formula a_{n}=a_{n-1}*r

we get common ratio =-2

8th term= a_{1}*(r)^{n-1}=3*(-2)^{7} =-384.

Explicit Formula =3*(-2)^{n-1}

7)Comparing the given recursive formula a_{n}=a_{n-1}*-5

with standard recursive formula a_{n}=a_{n-1}*r

we get common ratio =-5

8th term= a_{1}*(r)^{n-1}=4*(-5)^{7} =-312500.

Explicit Formula =4*(-5)^{n-1}

8)Comparing the given recursive formula a_{n}=a_{n-1}*-5

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Explicit Formula =2*(-5)^{n-1}

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<em>Picture 1 (Rhombus)</em>

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