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3 years ago

Evaluate the expression. (1.5)2(1.5) −2⋅(1.5)4

1 answer:

8 0

Is this (1.5)2(1.5) / -2(1.5)4? or is it (1.5)2(1.5) - 2(1.5)4?

First option:
4.5/-12 = -0.375

Second option
4.5-12 = -7.5

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Simplify the expression:<br> – 10x + – 4 – 8 + 7x

Ivan

Answer:

-3x-12

Step-by-step explanation:

-10x-4-8+7x

-3x-4-8

-3x-12

5 0

3 years ago

Read 2 more answers

HELP ASAP PLEASE!!! 20 POINTS!!

Kobotan [32]

Answer: $S_{12}=399.90$

Step-by-step explanation:

You know that the formula to find the sum of a finite geometric series is:

$S_n=\frac{a_1(1-r^n)}{1-r}$

Where $n$ is the number of terms, $a_1$ is the first term and $r$ is the common ratio ( $r\neq 1$ ).

The steps to find the sum of the first 12 terms of the given geometric serie, are:

1. Find the common ratio "r". By definition:

$r=\frac{a_2}{a_1}$

Then:

$r=\frac{100}{200}\\\\r=\frac{1}{2}$

2. Finally, knowing that:

$a_1=200\\\\n=12$

You must substitute values into the formula.

Then you get:

$S_{12}=\frac{200(1-(\frac{1}{2})^{12})}{1-\frac{1}{2}}\\\\S_{12}=399.90$

6 0

3 years ago

if our monthly income is $1,740 and your house payment is $1,253 what fraction of your monthly income must go to pay your house

Lady_Fox [76]

5/6 ? maybe and it might be 1253/1740

7 0

3 years ago

Estimate the circumference of the circle to the nearest hundredth. Use π = 3.14

blondinia [14]

Answer:

Step-by-step explanation:

7 0

2 years ago

What is the rat pop in 1990? <br> What does the model predict the rat pop was in the year 2005?

algol13

Answer:

Pop in 1990 = 81 million rats

Pop in 2005 = 127 million rats

Step-by-step explanation:

Given the function, the population of rats in 1990 is when we replace t with "0" which strictly gives the coefficient 81 that represents 81 million rats.

The rat population in 2005 is given by the formula when t = 15

This is: approximately 127 million rats.

4 0

2 years ago