PLZ HELP WILL MARK BRANLIEST (No dum answers or I will delete your question - seriously don't be annoying)

Mathematics

1 answer:

Vsevolod [243]2 years ago

4 0

Answer:

A. tan(2π/3) = $-\sqrt{3}$

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DUE IN 3 mins<br> C-9 at C= 16

bixtya [17]

7.
If c = 16
that means the equation is
16 - 9
which is 7
so 7

8 0

3 years ago

Read 2 more answers

Find d for the arithmetic series with S17=-170 and a1=2

Irina18 [472]

So, we know the sum of the first 17 terms is -170, thus S₁₇ = -170, and we also know the first term is 2, well

$\bf \textit{ sum of a finite arithmetic sequence}\\\\
S_n=\cfrac{n(a_1+a_n)}{2}\qquad 
\begin{cases}
n=n^{th}\ term\\
a_1=\textit{first term's value}\\
----------\\
n=17\\
S_{17}=-170\\
a_1=2
\end{cases}
\\\\\\
-170=\cfrac{17(2+a_{17})}{2}\implies \cfrac{-170}{17}=\cfrac{(2+a_{17})}{2}
\\\\\\
-10=\cfrac{(2+a_{17})}{2}\implies -20=2+a_{17}\implies -22=a_{17}$

well, since the 17th term is that much, let's check what "d" is then anyway,

$\bf n^{th}\textit{ term of an arithmetic sequence}\\\\
a_n=a_1+(n-1)d\qquad 
\begin{cases}
n=n^{th}\ term\\
a_1=\textit{first term's value}\\
d=\textit{common difference}\\
----------\\
n=17\\
a_{17}=-22\\
a_1=2
\end{cases}
\\\\\\
-22=2+(17-1)d\implies -22=2+16d\implies -24=16d
\\\\\\
\cfrac{-24}{16}=d\implies -\cfrac{3}{2}=d$

6 0

3 years ago

2. The table shows the probabilities of winning or losing when the team is playing away or is playing at home.

tekilochka [14]

The total will be 08.99 because that’s how you divide and he is winning

5 0

2 years ago

Mrs. Cole has a bag containing white and yellow marbles. Mrs. Cole randomly selects one marble from the bag, records the result,

DochEvi [55]

I think the correct answer is 63 because 41 of 65 is 63.08 rounded to the nearest percent is 63

6 0

3 years ago

- The lengths (in feet) of the sides of a pentagon can be represented by these

olganol [36]

Answer:

9a+12

Step-by-step explanation:

The perimeter is the sum of the side lengths, so is ...

6a + a + 4 + 8 + 2a

= a(6 +1 +2) + (4 +8)

= 9a +12

8 0

3 years ago