Ask question

Ask question

All categories

3 years ago

7

The first term of a geometric sequence is 4 and the multiplier, or ratio, is –2. What is the sum of the first 5 terms of the seq

uence?
A. 44
B. 64
C. –44
D. –64

1 answer:

Ann [662]3 years ago

3 0

C !.!.!.!.!!.!.!.!.!!.!!.!.!.!.!!!.!!!.!.!.

You might be interested in

Giá trị x thoả mãn x(x − 3) + x − 3 =0 là

svet-max [94.6K]

Here we will use the trial and error method.

We will try putting different values of x.

<h3 /><h3>1st of all</h3><h3>x=1</h3>

$\begin{gathered}\\ \sf\longmapsto 1(1-3)+1-3=0\end{gathered}$

$\begin{gathered}\\ \sf\longmapsto (-2)+1-3=0\end{gathered}$

$\begin{gathered}\\ \sf\longmapsto -2+1-3=0\end{gathered}$

$\begin{gathered}\\ \sf\longmapsto -2-2=0\end{gathered}$

$\begin{gathered}\\ \sf\longmapsto -4≠0\end{gathered}$

<h2>Now,</h2><h3>x=2</h3>

$\begin{gathered}\\ \sf\longmapsto 2(2-3)+2-3=0\end{gathered}$

$\begin{gathered}\\ \sf\longmapsto 2(-1)+2-3=0\end{gathered}$

$\begin{gathered}\\ \sf\longmapsto -2+2-3=0\end{gathered}$

$\begin{gathered}\\ \sf\longmapsto -3≠0\end{gathered}$

<h2>Again,</h2><h3>x=3</h3>

$\begin{gathered}\\ \sf\longmapsto 3(3-3)+3-3=0\end{gathered}$

$\begin{gathered}\\ \sf\longmapsto 3(3-3)=0\end{gathered}$

$\begin{gathered}\\ \sf\longmapsto 3×0=0\end{gathered}$

$\begin{gathered}\\ \sf\longmapsto 0=0\end{gathered}$

<h3>☣Hence, The value of X as 3 satisfies the equation!</h3>

5 0

2 years ago

4 quarts equals how many cups?

boyakko [2]

4 cups equals to 16 cups becuase 1 quart equals 4 cups

3 0

3 years ago

PLEASE HELP ME!!!!<br> I need help with number 14.

gavmur [86]

Answer:

D

Step-by-step explanation:

4 0

3 years ago

Andrew measured the floor on his storage unit, which is rectangular. It is 4 meters wide and 5 meters from one corner to the opp

11111nata11111 [884]

Answer:

3

Step-by-step explanation:

5 0

2 years ago

How would I solve this ?

katrin2010 [14]

Answer:

Step-by-step explanation:

7/x=tan32

x=7/ tan 32

or x=11.20

5 0

2 years ago