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Naddik [55]
3 years ago
5

Find the 20th term in the arithmetic sequence -4,1,6,11,16

Mathematics
1 answer:
olchik [2.2K]3 years ago
4 0
Use formula:
an = a1 + d(n - 1)
a1 = -4, d = 5
Plug in the numbers
a20 = -4 + (20-1) * 5
a20 = -4 + 95, a20 = 91
Solution: the 20th term is 91
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Simplify the expression. Write the answer using scientific notation. 0.3(8.2 x 10^-3)
olchik [2.2K]

Answer:

0.3(8.2 x 10^-3) = 2.46 X 10 ^ -3

Step-by-step explanation:

We need to solve the equation 0.3(8.2 x 10^-3) and write answer in scientific notation.

Solving,

= 0.3(8.2 x 10^-3)

= 0.3 * 0.0082

= 0.00246

Writing in scientific notation

= 2.46 X 10 ^ -3

So, after solving the expression 0.3(8.2 x 10^-3) the result is 2.46 X 10 ^ -3.

8 0
2 years ago
Find the Number in Each Case
ipn [44]
It seems like you have the answer already. but heres how its calculated.
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so the missing number is 50
 **cross multiply 100 and 80 to get 8000 then divide 160<span> into 8000 to get 50**</span>

 
6 0
3 years ago
I need help this is hard for me and I have a few
VLD [36.1K]

Step-by-step explanation:

Subtracting N by T

(3a2 + 2a - 5) - (2a2 + a + 6)

Subtracting like terms

a2 + a - 11

7 0
3 years ago
Which statement most accurately describes Louisa’s error?
kolbaska11 [484]
For the options provided, the statement that most accurately describes federalism is number 3. Power is divided between the national government and the states. It is an arrangement of government in which a similar region is controlled by two levels of government. By and large, a general national government oversees issues that influence the whole nation, and littler subdivisions administer issues of nearby concern.





Hope this helps




Don't forget to rate and thanks me
3 0
3 years ago
Plz help me with this q
marin [14]

Answer:

lenght is 6

Step-by-step explanation:

i think so

HOPE IT HELPS!!!

7 0
2 years ago
Read 2 more answers
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