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3 years ago

CHECK MY ANSWERS PLEASE

Mathematics

1 answer:

ZanzabumX [31]3 years ago

8 0

Answer:

1. False 2. True

Step-by-step explanation:

For a geometric sequence,

$\dfrac{a_2}{a_1}=\dfrac{a_3}{a_2}$

1. The sequence is :

3, 13, 23, 33,...

$\dfrac{13}{3}\ne \dfrac{23}{13}$

It is not geometric. It is false

2. The sequence is :

5, -25, 125, -625

$\dfrac{-25}{5}=\dfrac{125}{-25}\\\\-5=-5$

So, the sequence is geometric as the common ratio is same. It is true.

You might be interested in

If you could show the steps that would be great

zvonat [6]

Answer:

24x + 8

Step-by-step explanation:

4 + 16 - 12(1 + 2x)

Solve

Show steps

__________________

We have a dilemma here, there is a variable and constant numbers in this equation. No fear, this is when like terms comes into play, where you can only combine two numbers that have the same ending, whether it be variables, exponents, e.t.c.

Distribute :

4 + 16 - 12(1 + 2x)

4 + 16 - (12(1) + 12(2x))

4 + 16 - 12 + 24x

Use PEMDAS (Add left to right) :

4 + 16 - 12 + 24x

20 - 12 + 24x

8 + 24x

24x + 8

4 0

3 years ago

Read 2 more answers

Which vocabulary is used to explain out of control conditions on a chart ?

horsena [70]

An odd or far from average result on a graph or chart is called an outlier.

3 0

3 years ago

if you were to solve the following system by substitution what would be the best variable to solve and from what equation? 2x+8y

Nina [5.8K]

All the numbers in the first equation have a common factor of 2. Removing that gives
.. x +4y = 6
making it easy to solve for x
.. x = 6 -4y

My choice would be to solve for x using the first equation.

_____
On second thought, it might actually be easier to solve either equation for 8y. That term then directly substitutes into the other equation (equivalent to adding the two equations).
.. 8y = 3x -11 . . . . . from the second equation
.. 2x +(3x -11) = 12 . . . substituting into the first equation
.. 5x = 23 . . . . . . . . . . collect terms, add 11 (what you would get by adding the equations in the first place)
.. x = 4.6
.. y = (3*4.6 -11)/8 = 0.35

4 0

3 years ago

11 5/9 + 10 1/3 plz help

Likurg_2 [28]

10 1/3= 31/3
31/3= 93/9

11 5/9= 104/9
93/9 + 104/9 = 197/9
197/9= 21 8/9

your answer is 21 & 8/9

Good Luck
XD

7 0

3 years ago

The lsrl after an exponential transformation is log yhat=.4785 + 1.468x. What is the exponential form of the regression?

zheka24 [161]

Answer:

$10^{0.4785+1.468x}=y$

Step-by-step explanation:

So I'm assuming when you typed "log yhat=.4785 + 1.468x", you meant to write: $log(y)=0.4785+1.468x$ . And generally a logarithm can be written in the form $log_ba=c$ which can then be rewritten as $b^c=a$ , but since the log has no base, it's assumed to be 10. So in this case you have the equation:

$log_{10}y=0.4785+1.468x$ , which can then be written in exponential form as:

$10^{0.4785+1.468x}=y$

8 0

1 year ago