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andreyandreev [35.5K]
2 years ago
7

ASAP PLSSS ALL MY POINTS Use sigma notation to represent the sum of the first seven terms of the following sequence: 4, 10, 16,

…
the summation from n equals 1 to 7 of negative 4 plus 6 times n
the summation from n equals 1 to 7 of 4 plus 6 times n
the summation from n equals 1 to 7 of 2 plus 6 times n
the summation from n equals 1 to 7 of negative 2 plus 6 times n
Mathematics
2 answers:
natita [175]2 years ago
5 0

Answer:

i really need help on this one too

Step-by-step explanation:

.

Galina-37 [17]2 years ago
4 0

Answer:

Step-by-step explanation:

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450 minutes

Step-by-step explanation:

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1 week: 10×3=30 minutes

15-week semester: 30×15=450 minutes

6 0
3 years ago
Sasha counted 24 feet in all of them in the barn how many dogs and birds and buyers do you think are in the barn today there are
maw [93]
(Assuming dogs have 4 feet, birds have 2 and buyers have 2)

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3 years ago
Which is the better buy?. Store A $180 at 1/3 off Or Store B $110 at 10% off
Blababa [14]

Answer: Store B

Step-by-step explanation:

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6 0
4 years ago
Read 2 more answers
the diameter of a tree varies directly with its age. A 15-year old tree has a 3.75 in diameter. How old will the tree be when it
dlinn [17]

Answer:

x=15*25/3.75

x=100

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Step-by-step explanation:

5 0
3 years ago
What is the area of a regular polygon with 100 sides and a perimeter of 100 units?
PolarNik [594]
Now, if the regular polygon has 100 sides, and the perimeter is 100 units, that simply means that each side is 1 unit, foot, meter, else.

so, we know each side is 1 unit long, and we know there are 100 sides,

\bf \textit{area of a regular polygon}\\\\
A=\cfrac{1}{4}ns^2cot\left( \frac{180}{n} \right)\quad 
\begin{cases}
n=\textit{number of sides}\\
s=\textit{length of a side}\\
\frac{180}{n}=central~angle\\
\qquad~~ in~degrees\\
----------\\
n=100\\
s=1
\end{cases}
\\\\\\
A=\cfrac{1}{4}\cdot 100\cdot 1^2\cdot cot\left( \frac{180}{100} \right)\implies A=25cot\left(\frac{9}{5}^o  \right)
\\\\\\
A\approx 795.51289884
3 0
4 years ago
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