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amid [387]
3 years ago
13

The first term of a geometric sequence is –2 and the common ratio is -1/4.

Mathematics
2 answers:
Simora [160]3 years ago
8 0
Just took the test, the right answer is B
hram777 [196]3 years ago
4 0
-2*-1/4=1/2
1/2*-1/4=-1/8
-1/8*-1/4=1/32
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SOMEONE PLZ HELP ME WITH 10 and 8!!!!!
Allisa [31]

Answer:

10.23.75^{o}

8. 34.76^{o}

Step-by-step explanation:

10. each step is 36, so i added it twice to get 72.

     then add 16 twice = 32

      this gives us two sides to our triangle.

      We can now use tan since we know opp and adj

      tan 32/72 = .44

      arctan = 23.75

8. since we again know the opposite and adjacent sides to the angle e are trying to find we can use tan again.

  tan 12.5/18 = .694

  arctan= 34.76

5 0
2 years ago
Solve this root2x-7 =7
Karo-lina-s [1.5K]
-14??
Idek tbh it’s kinda hard
5 0
2 years ago
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A research report says that t(63) = 1.99; p = .03. From that information, can you reject the null hypothesis with 95% confidence
Leona [35]

Answer:

Yes, I can reject the null hypothesis with 95% confidence.

Step-by-step explanation:

Critical value t(63) = 1.99

p-value = 0.03

Confidence level (C) = 95% = 0.95

Significance level = 1 - C = 1 - 0.95 = 0.05

Conclusion:

Reject the null hypothesis because the p-value 0.03 is less than the significance level 0.05.

4 0
2 years ago
Read 2 more answers
Find a formula for an arithmetic sequence that begins 80, 83, 86, 89, ...​
mel-nik [20]

Answer:

a_{n} = 3n + 77

Step-by-step explanation:

The nth term of an arithmetic sequence is

a_{n} = a₁ + (n - 1)d

where a₁ is the first term and d the common difference

Here a₁ = 80 and d = a₂ - a₁ = 83 - 80 = 3 , then

a_{n} = 80 + 3(n - 1) = 80 + 3n - 3 = 3n + 77

3 0
3 years ago
2 1/4 + 1 3/4 + 3 1/2=
murzikaleks [220]
The answer is 7 1/2 becasue if you add the whole #s then the fractions you get the answer
7 0
2 years ago
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