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allsm [11]
3 years ago
8

Consider the geometric sequence 4, 40, 400, 4000, ...

Mathematics
1 answer:
Rom4ik [11]3 years ago
7 0

Answer:

a(n) = 4*10(n - 1)

Step-by-step explanation:

Each term of the given sequence is 10 times greater than the previous term.

The first term of this sequence is 4.

Thus, the explicit formula desired is:

a(n) = 4*10(n - 1).

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Solve for − ∣ x − 2 ∣ + 4 ≤ 0
MakcuM [25]

Answer:

x ≥ 6 or x ≤ -2

Step-by-step explanation:

- I x - 2 I + 4 ≤ 0

- I x - 2 I ≤ -4

I x - 2 I ≥ 4

x - 2 ≥ 4  or  x - 2 ≤ -4

x ≥ 6  or x ≤ -2

5 0
3 years ago
What is the irrational number in This set: 12.89, square root of 12 and 12/144 ?
kifflom [539]
Good night, 

<span>Irrational numbers are those that can't be expressed as a fraction:

12.89 can be expressed as: </span>\frac{1289}{100}

\frac{12}{144}= \frac{1}{12}

<span>The above numbers can be expressed as a fraction, then the logical answer is: </span>\sqrt{12}

But we will check the answer: 

\sqrt{12}= \sqrt{2^{2}*3 }  =2* \sqrt{3} =3.4641016...

As you can see we can't express that number as a fraction, so that is te correct answer.

6 0
4 years ago
number pattern has 75 as its first term. The rule for the pattern is subtract 6. What is the sixth term
____ [38]
Since you subtract 6 and you have to find the sixth term, you can do:
-6×5=-30 ( negative shows you're subtracting and since 75 is the first term, then you have to find the difference of the input/term 6-1, the sixth term minus the first)
75-30=45
You can check by actually continuing the pattern.
75,69,63,57,51,45,39......
4 0
3 years ago
Which expression is equivalent to 5(w+4) when w=9
erica [24]

Answer: Should be 5(9)+4

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
Please answer both of the questions pleaseeee
Savatey [412]

Answer:

Question 9:

The product is irrational

Question 10:

20

10

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
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