3 years ago

PLZZZZZZZ NEED HELP!!!!!!!!!

Mathematics

1 answer:

Angelina_Jolie [31]3 years ago

4 0

The first option is the correct choice of answers.

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Write the equation and identify the slope, y-intercept, an

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Equation: y=-2x-4
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y-int: -4
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3 0

3 years ago

Can someone help me plz Xd

stira [4]

Answer:

-2497

Step-by-step explanation:

Sn=n/2[2a+(n-1)d]

=22/2[2*-40+(22-1)d]

=11(2*-40+(21*-7)

= -2497

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Consecutive terms in an arithmetic sequence differ by a constant $d$ . So

$5k-1=2k+d$
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$\implies\begin{cases}3k-d=1\\k-d=-3\end{cases}\implies k=2,d=5$

Denote the $n$ -th term in the sequence by $a_n$ . Now that $a_1=2$ , we have

$a_n=a_{n-1}+5=a_{n-2}+2\cdot5=\cdots=a_1+(n-1)\cdot5$

which means

$a_8=2+(8-1)\cdot5=37$

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3 years ago

. Which of the following is the only triangle whose sides form a right triangle?

vivado [14]

Answer:

It is either C or D.

Step-by-step explanation:

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3 years ago

Derivative of y = cos(sqrt(sin(tan pi x))) ?

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