3 years ago

Which answer represents the series in sigma notation? −3+(−1)+1+3+5 A:∑j=15(2j−5)

Mathematics

1 answer:

insens350 [35]3 years ago

8 0

Answer:

A:∑j=15(2j−5)

Step-by-step explanation:

a = -3

d = -1 - (-3) = -1 + 3 = 2

j-th term: a + (j-1)d

-3 + (j - 1)(2)

-3 + 2j - 2

2j - 5

You might be interested in

HELPPPPPPPPP Write the quadratic expression to represent the pattern to the right

Lerok [7]

Answer:

n^2 + 2n - 1

Step-by-step explanation:

Figure 1

2*2 - 2

Figure 2

3*3 - 2

Figure 3

4*4 - 2

Equation for nth term

(n + 1)^2 - 2 =
n^2 + 2n + 1 - 2 =
n^2 + 2n - 1

4 0

3 years ago

PLEASE HELP?! IM SO CONFUSED!!

Andre45 [30]

Answer:

Step-by-step explanation:

-3 7/8 rounds down to -4

4.63 rounds up to 5

-4 x 6 + 5

-24 + 5

-19

her answer (-19.14) also rounds to -19

So yes, it is reasonable and the correct response is C.

5 0

2 years ago

Find the area of a rectangle with base 40 cm and height 2 m

Tamiku [17]

Answer: 80

Step-by-step explanation:

3 0

3 years ago

Read 2 more answers

How do you simply the square root of 28

maria [59]

$\sqrt{28}$ can be rewritten as ;
= $\sqrt{7*4}$
= $\sqrt{4} * \sqrt{7}$
=2 $\sqrt{7}$

3 0

3 years ago

May I have some help please?

MakcuM [25]

Answer:

If this is solving for a hypotenuse, the answer is 8.

Step-by-step explanation:

a^2 + b^2 = c^2

6^2 b^2 = 10^2

36 + b^2 = 100

100 - 36 = 64

The square root of 64 is 8.

6 0

3 years ago