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cestrela7 [59]
3 years ago
10

Please help me I can’t figure it out

Mathematics
1 answer:
dezoksy [38]3 years ago
7 0

Answer:

its C.

Step-by-step explanation:

omg that took forever to solve

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Can someone please help me with this
MArishka [77]

Answer:ok

Step-by-step explanation:

4 0
3 years ago
The third term of the sequence is 120. The fifth term is 76.8 The explicit rule for the geometric sequence is an=?(?)n-1
gulaghasi [49]

Answer:

The explicit rule of the geometric sequence

 aₙ   = 187.5 (0.8)ⁿ⁻¹

Step-by-step explanation:

<u><em> Step(i):-</em></u>

Given that the third term of the sequence = 120

        tₙ = a rⁿ⁻¹  

       t₃  = a r³⁻¹ = ar²

        120 = ar² ..(i)

Given that the fifth term of the given geometric sequence = 76.8

        tₙ = a rⁿ⁻¹  

       t₅  = a r⁵⁻¹ = a r⁴

   76.8  = a r⁴...(ii)

<u><em>Step(ii):</em></u>-

 Dividing (ii) and (i)

         \frac{ar^{4} }{ar^{2} } = \frac{76.8}{120}

        r²   = 0.64

       r    =√ 0.64 = 0.8

Substitute r= 0.8 in equation (i)

         120 = ar²

       120 = a(0.8)²

⇒      a = \frac{120}{0.64} =187.5

<u><em>Step(iii):-</em></u>

The explicit rule of the geometric sequence

                 aₙ  = a rⁿ⁻¹

put a= 187.5  and r = 0.8

                aₙ   = 187.5 (0.8)ⁿ⁻¹

 

7 0
2 years ago
The sales tax in a major city is 7%. Find the cost, including the tax charged on a purchase of $200.
Vitek1552 [10]

Answer:

$214

Step-by-step explanation:

200*0.07 = 14, 200 + 14 = 214

6 0
2 years ago
5/100 as a decimal in Dollar form
mina [271]

Answer:

$0.05

Step-by-step explanation:

Hope it helps and have a great day =D

5 0
2 years ago
Read 2 more answers
If m&lt;1 = 7x-19 and m&lt;2 = x+5 find m&lt;2
lbvjy [14]

Answer:55

Step-by-step explanation:

55

7 0
2 years ago
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