The error Alex made while simplifying the expression 7+(3x 1. 4)+5+2+(5x1. 4) is "he found the perimeter of the figure instead of the area".
<h3>How to find area of an object?</h3>
The area of an object is the product of the length and width of the objects.
Alex added the dimensions of the grid instead of multiplying them.
7+(3x 1. 4)+5+2+(5x1. 4)
For instance,
- Area of a rectangle = length × width
- Perimeter of a rectangle = 2(length + width)
Therefore, Alex found the perimeter of the figure instead of the area".
Learn more about area:
brainly.com/question/13048427
Answer:
x is 4
Step-by-step explanation:
Answer:
x≤6 or x≥30.
but the second symbol is just less than x. I can't find the right symbol.
Step-by-step explanation:
9x+4≤58 or 1/6x-2≥3
9x≤54 or 1/6x≥5
x≤ 6 or x≥ 30
Answer:
if Suzanne goal was to collect 600+ dollars in 16 weeks than she did achieve it
Step-by-step explanation:
I am not sure what the goal of this mathematical problem is but if you need a specific number of money to be collected multiply the by the number of weeks.
4 weeks ( 4*7)=28
160/28=5.71428571429
5.71428571429-(money per week saved by Suzanne)
if Suzanne continue continue with her saving for the next 12 months she will have a grand total of:
12+4= 16 ( total weeks)
7*16=112
112 * 5.71428571429 = 640
Answer:
the annual growth rate is 15.47 %
Step-by-step explanation:
Given the data in the question;
Internet users grew from 25.8 million to 70.6 million,
from the year 2009 to the year 2016.
Using geometric mean, Annual growth rate = ?
To determine the average growth rate of a time series using geometric mean, we use the following formula;
= [ 
Xₙ / X₀ 
] - 1
where Xₙ is the data value of the last year { 70.6 million }
X₀ is the data value for the first year { 25.8 million }
n is the sample size or the time difference, ( 2016 - 2009 = 7 )
so we substitute;
= [ 70.6 / 25.8 
] - 1
= [ 2.736434 ] - 1
= [ 1.15466 ] - 1
= 0.15466
= ( 0.15466 × 100 )%
= 15.47 %
Therefore, the annual growth rate is 15.47 %
