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krok68 [10]
3 years ago
9

Use the formula an = aj(r)a- to write a formula for the geometric sequence below.

Mathematics
1 answer:
GREYUIT [131]3 years ago
8 0

Answer:

a_{n} = 3(2)^{n-1}

Step-by-step explanation:

There is a common ratio r between consecutive terms in the sequence, that is

6 ÷ 3 = 12 ÷ 6 = 24 ÷ 12 = 48 ÷ 24 = 2

This indicates the sequence is geometric with n th term

a_{n} = a₁(r)^{n-1}

where a₁ is the first term and r the common ratio

Here a₁ = 3 and r = 2 , thus

a_{n} = 3(2)^{n-1}

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Find and sketch the domain of the function. f(x,y)=√(4-x^2-y^2) +√(1-x^2)<br>​
elena55 [62]

Answer:

Hello

Step-by-step explanation:

The domain is limited with 2 lines parallel: -1 ≤ x ≤ 1

and the disk ? (inside of a circle) of center (0,0) and radius 2

dom\ f(x,y)=\{(x,y) \in \mathbb{R} ^2 | \ -1\leq x \leq -1\ and \ ( -\sqrt{4-x^2}  \leq \ y  \leq \sqrt{4-x^2}\  ) \ \}\\

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3 years ago
Need help my teacher is going to be really mad
neonofarm [45]
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5 0
4 years ago
PLEASE HELPPP ME!!!
poizon [28]

Answer:

-28.5

-5

-11.8

-4.5

Step-by-step explanation:

From that data provided for Monday

Temperature at noon = temperature at midnight + the change in temperature

-32 + 20 = -12

Temperature on Tuesday's noon = -17.5 + (-11) = -28.5

Temperature on Friday's noon = -21.8 + 17.3 = -4.5

From that data provided for Monday

Temperature at midnight = temperature at noon - change in temperature

-12 - 20 = -32

Temperature on Wednesday's midnight = 10.5 - 15.5 = -5

From that data provided for Monday,

change in temperature = temperature at noon - temperature at midnight

-32 - (-12) = 20

Change in temperature on Thursday = -24 - (-12.2) = -11.8

6 0
3 years ago
Please help me! Please!
Mandarinka [93]

Answer:

here is your aneswer

the answer. will be 40

8 0
3 years ago
9 x 27 + 2 x 31 - 28 = n
sleet_krkn [62]
27x9=243  2x31=62 
243+62=305 
305-28=277 n
7 0
4 years ago
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