3 years ago

3. Which equation correctly shows the relationship between the numbers 2,560 and 256?

Mathematics

2 answers:

spayn [35]3 years ago

8 0

Answer:

i dont know

what to say

Step-by- 2560 = 1000 x (2 + 5 + 6)

mestny [16]3 years ago

7 0

This looks fun right??

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F(x) = 2x^2 Find f(-6)

katrin2010 [14]

Answer:

f(-6) = 72

Step-by-step explanation:

Input -6 for x :

2(-6)²

Complete with P.E.M.D.A.S :

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then :

so therefore :

f(-6) = 72

f of x equals 72

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3 years ago

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Step-by-step explanation:

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The explicit formula for a sequence is an=−2+3/2(n−1) What is the 21st term of the sequence?

Anni [7]

Step-by-step explanation:

From the given question it appears that (n-1) is in the numerator's place, if it is so, then let us solve it.

$a_n = - 2 + \frac{3}{2}(n - 1) \\ \\ \therefore \: a_{21} = - 2 + \frac{3}{2} (21 - 1) \\ \\ \therefore \: a_{21} = - 2 + \frac{3}{2 } \times \: 20\\ \\ \therefore \: a_{21} = - 2 + 3 \times \: 10 \\ \\ \therefore \: a_{21} = { -2 + 30} \\ \\ \therefore \: a_{21} = 28 \\ \\ \huge \red{ \boxed{\therefore \: a_{21} = 28} } \\ \\$

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3 years ago

Plz help solve this please and thx u

kow [346]

2 (an - 1) = 40
2an - 2 =40
2an = 40 - 2
2an = 38
2an/2 = 38/2
an = 19

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2 years ago