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3 years ago

((MULTIPLE CHOICE ))

Mathematics

2 answers:

Kipish [7]3 years ago

7 0

It can't be A because both are false.

It can't be B because there is no common ratio.

It can't be C because the sequence has no common difference.

Thus, you can this sequence a related to Fibonacci sequence (only you subtract, not add):

ex. 3331282419

\/ \/ \/ \/

2 3 4 5

meaning 33-2=31

31-3=28

28-4=24

So, the answer is D.

~YAND3R3

lesya692 [45]3 years ago

6 0

Answer:

Neither.

Step-by-step explanation:

you are correct about the pattern, so it's not adding the same number and not multiplying by the same number. So it's neither.

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Simplify. 1+32⋅2−5 A −48 B 14 C 15 D 27 (Sorry for the first few times it wouldn't let me edit the format)

Inessa05 [86]

Answer:

$\Huge \boxed{\mathrm{60}}$

$\rule[225]{225}{2}$

Step-by-step explanation:

$1+32 * 2 - 5$

Multiplying,

$\Longrightarrow \ \ 1+64-5$

Adding or subtracting,

$\Longrightarrow \ \ 64-4$

$\Longrightarrow \ \ 60$

$\rule[225]{225}{2}$

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3 years ago

Can someone explain why the ans is X=6? Its (x-6)

andrew-mc [135]

Answer:

because either x-6=0 or x+1=0

x-6=0

x=0+6

x=6 OR,

x+1=0

x=0-1

x=-1

Step-by-step explanation:

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3 years ago

What is the measure of

kipiarov [429]

Answer:

The measure of oh is the measure of the measurements of the measurement periodt

Step-by-step explanation:

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3 years ago

What is the first term in a geometric sequence if the common ratio is − 2 and the sum of the first six terms is −105?

Serggg [28]

$\bf \qquad \qquad \textit{sum of a finite geometric sequence}
\\\\
S_n=\sum\limits_{i=1}^{n}\ a_1\cdot r^{i-1}\implies S_n=a_1\left( \cfrac{1-r^n}{1-r} \right)\quad 
\begin{cases}
n=n^{th}\ term\\
a_1=\textit{first term's value}\\
r=\textit{common ratio}\\
----------\\
r=-2\\
n=6\\
S_6=-105
\end{cases}$

$\bf -105=a_1\left( \cfrac{1-(-2)^6}{1-(-2)} \right)\implies -105=a_1\left( \cfrac{1-(64)}{1+2} \right)
\\\\\\
-105=a_1\left( \cfrac{-63}{3} \right)\implies -105=a_1(-21)
\\\\\\
\cfrac{-105}{-21}=a_1\implies 5=a_1$

7 0

3 years ago

8 less than 1/3 a number n is -13

AysviL [449]

Let's set up an equation.

so we know the answer is -13.
1/3 of a number (our variable) can be written as 1/3n.
8 less than that would be subtracting 1/3n by 8

so we have -13 = 1/3n - 8.

To solve:
Add 8 to both sides: -5 = 1/3n
Multiply both sides by 3 (to cancel fraction): -15 = n

You can check by plugging -15 into the equation we made.

7 0

3 years ago