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antiseptic1488 [7]
2 years ago
10

In a geometric sequence, a2 = 2, a3 = 20, & a4 = 200.

Mathematics
1 answer:
babymother [125]2 years ago
5 0

Answer:

the first one

the first one Step-by-step explanation:

the first one Step-by-step explanation:from the formula Un =ar^n-1

where a is 2

where a is 2 r = 20/2=10

where a is 2 r = 20/2=10 so Un= 10×2^n-1

that's all.....have fun

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What is the area of a parallelogram that has a base of 12 3/4 inches and a height of 2 1/2 inches
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12, 3/4=12.75. 2, 1/2=2.5. All you have to do is multiple base * height to get your answer. so 12.75*2.=31.875. 
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3 years ago
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Delicious77 [7]
The second one it's double.
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3 years ago
A garden table and a bench cost $589 combined. The garden table costs $61 less than the bench. What is the cost of the bench?
Paul [167]

Answer:

The bench costs $350

Step-by-step explanation:

et the cost of the bench = x

 

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3 years ago
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7 boxes - fish food; 1 box contained 6 pouches

Total amount of fish food is 7 × 6 = 42 pouches of fish food

2 packets - cat food; 1 packet contained 4 pouches

Total amount of cat food is 2 × 4 = 8 pouches

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7 0
3 years ago
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one desert is 4,000,000 miles²

and the other is (5 × 4,000,000)= 20,000,000 miles²


8 0
3 years ago
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