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Artemon [7]
3 years ago
14

Find Sn for the given series if: a1=22 d=-8 n=21 F)1911 G)-1449 H)-2436 I)-1218

Mathematics
1 answer:
GuDViN [60]3 years ago
3 0

3∑x=2 72x5∑x=3 −2x−23∑x=3 −1x2

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Just 1,2, and 3<br> I really need help
ioda
The correct answer for the question that is being presented above is this one: 

(1)
The triangle shows and equilateral triangle. Equilateral triangle has the same length of sides and angles.
60 = 1.5x
x = 40 degrees

7.1 = y + 3.4
y = 3.7 cm

(2) Isosceles Triangle
65 = 13x
x = 5 degrees

y + 2/3 = 7/8
y = 7/8 - 2/3
y = 21 - 16 / 24
y = 5/24 in

(3)
12 = x + 3.8
x = 8.2mm
6 0
3 years ago
Simplify.<br> N4 x N7 over n5
Alinara [238K]

Answer:

n^6.

Step-by-step explanation:

n^4 * \frac{n^7}{n^5}

= n^4 * n^{7 - 5}

= n^4 * n^2

= n^{4 + 2}

= n^6.

Hope this helps!

8 0
3 years ago
Read 2 more answers
PLEASE HELP!! What is the domain of (f)
pishuonlain [190]

The domain is (-5,4). If that makes any sense, if it doesnt ill explain


4 0
3 years ago
Find three consecutive even numbers whose sum is 1674.
Norma-Jean [14]

Answer:

556, 558, and 560

Step-by-step explanation:

1674/3 = 558 (An even number, yay)

So 558 + 558 + 558 = 1674

Subtract two from the first one and add two to the last (still equal)

556 + 558 + 560

adding them equals 1674 so the answer is

556, 558, and 560

7 0
3 years ago
The diameter, <img src="https://tex.z-dn.net/?f=D" id="TexFormula1" title="D" alt="D" align="absmiddle" class="latex-formula">,
xenn [34]

Answer:

88.6

Step-by-step explanation:

A=4(pi)r^2/3

D=9.2 : r=4.6

A=4(3.14)(4.6^2)/3=88.5898667

3 0
3 years ago
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