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2 years ago

5

Please help I think it's A but im unsure

1 answer:

Likurg_2 [28]2 years ago

5 0

Answer:

b is the correct answer I am also not sure

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PLZ I need help showing work and solving

svetoff [14.1K]

Where is the table. We need a table. We also need to type 20 words to ask...

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3 years ago

in a AP the first term is 8,nth term is 33 and sum to first n terms is 123.Find n and common difference

allsm [11]

I believe there is no such AP...

Recursively, this sequence is supposed to be given by

$\begin{cases}a_1=8\\a_k=a_{k-1}+d&\text{for }k>1\end{cases}$

so that

$a_k=a_{k-1}+d=a_{k-2}+2d=\cdots=a_1+(k-1)d$

$a_n=a_1+(n-1)d$

$33=8+(n-1)d$

$21=(n-1)d$

$n$ has to be an integer, which means there are 4 possible cases.

Case 1: $n-1=1$ and $d=21$ . But

$\displaystyle\sum_{k=1}^2(8+21(k-1))=37\neq123$

Case 2: $n-1=21$ and $d=1$ . But

$\displaystyle\sum_{k=1}^{22}(8+1(k-1))=407\neq123$

Case 3: $n-1=3$ and $d=7$ . But

$\displaystyle\sum_{k=1}^4(8+7(k-1))=74\neq123$

Case 4: $n-1=7$ and $d=3$ . But

$\displaystyle\sum_{k=1}^8(8+3(k-1))=148\neq123$

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3 years ago

GETT IT RIGHT AND GET BRAINLIEST

oksian1 [2.3K]

Answer:

18

Step-by-step explanation:

58 - |-40| =

58 -40=

18

7 0

3 years ago

Read 2 more answers

Y = 2x + 3<br> how to do this

Marat540 [252]

Answer:

To graph:

Step-by-step explanation:

Plot your first point at (0,3) as it's your y-interecpt.

Then from that point move 2 up and 1 over to the right for your second point. I did this since 2 is your slope.

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2 years ago

Simplify the expression 11x-(2x^2+8x).

Inessa [10]

-2x^2-3x is how you can simplify the expression

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2 years ago