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alexdok [17]
4 years ago
14

The following is a linear sequence. 1, 4, 7, 10, 13...

Mathematics
1 answer:
jasenka [17]4 years ago
8 0

We have

a_n = 3n - 2

We're asked for a_{90}

a_{90} = 3(90) - 2 = 268

Answer: C 268

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xxTIMURxx [149]

Answer:

b=8.5cm

Step-by-step explanation:

tanx (this represents tan theta, it's just easier to type) is equal to 0.6 and since the tanx ratio is opp/adj, we know that opp/adj = 0.6

To find what b is (adjacent as it is adjacent to the angle being used and it is not the hypotenuse), we just have to rearrange.

0.6=5.1/adj

to solve for adj, we can switch 0.6 and adj. (This works because to get adj by itself on one side you would multiply it to the other side and then divide 0.6 from both sides --> simple algebra)

so then you have

adj=5.1/0.6

adj=8.5cm

(if you want to check your solution you can use pythagoeran theorem, a^2+b^2=c^2) and sub everything in and make sure all the numbers equal the right thing!

6 0
2 years ago
Solve x2 + 2x + 9 = 0. (2 points) x equals negative 2 plus or minus 4 I square root of 2 x equals negative 2 plus or minus 2 I s
vazorg [7]

Answer:

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Step-by-step explanation:

4 0
3 years ago
What are benefits of good study habits? Check all that apply.
Ymorist [56]

Answer:

1, 3, 4 i hope this helps ;)

Step-by-step explanation:

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3 years ago
6 is a Natural, Whole, and Integer number,<br> True or false
KengaRu [80]

Answer:

This is true!

Step-by-step explanation:

It is natural because it is a positive integer greater than 0, it's whole because its not negative and it is an integer.

8 0
3 years ago
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Kaylis [27]
11/15-2/5
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