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3 years ago

What is the explicit formula for the sequence 3, 7,

Mathematics

2 answers:

melomori [17]3 years ago

8 0

Answer:

Step-by-step explanation:

i just answered it

balu736 [363]3 years ago

5 0

Answer:

an = 4n - 1

a1 = 3

a2 = 7 = 3 + 4

a3 = 11 = 3 + 4.2

a4 = 15 = 3 + 4.3

a5 = 19 = 3 + 4.5

.....

=> this is a arithmetic with a1 = 3 and d = 4

=> an = 3 + 4(n - 1) = 4n - 1

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Veronika [31]

Answer: A

Step-by-step explanation: if you want me to explain just comment

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3 years ago

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Elena L [17]

Answer:

i belive it is 900

Step-by-step explanation:

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4 years ago

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balu736 [363]

Answer:

A. 4.2 times

Step-by-step explanation:

Chlorine level of the pool as adjusted by Paula = 6.3 parts per million

Ideal Chlorine level as suggested by the magazine = 1.5 parts per million.

Thus, the number of times the ideal level of Chlorine that the current level is = current level ÷ ideal level

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3 years ago

can someone help me to solve these two problems pls I will really appreciate I will mark you the brainly!

zavuch27 [327]

Answer:

12. 524 in³ (3 sig. fig.) 13. 2000 cm³ (3 sig. fig.)

Step-by-step explanation:

12. Volume of sphere = (4/3)πr³

= 500/3π

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3 years ago

Which graph represents a function with direct variation?

sweet [91]

This is easier than you think!

When a graph shows direct variation, it always passes through the origin

The origin is (0, 0)

The very center!

Your answer is the first graph!

5 0

3 years ago

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