HELP AND ILL GIVE YALL BRAINLIEST
1 answer:
You might be interested in
Answer:
Area: 7850 square cm
Perimeter: 314 cm.
Step-by-step explanation:
The area is . With r=50,
=2500π which is about (2500)(3.14)=7850.
The perimeter is which is the same as (diameter)(π). The diameter is 100, so
which is about (100)(3.14)=314.
Example of linear inequalities; y ≤ x – 1 and y < –2x + 1
A combination of linear inequality equations with the same variables is referred to as a system of linear inequalities.
There are five inequality symbols used to represent equations of inequality.
These are less than (<), greater than (>), less than or equal (≤), greater than or equal (≥), and the not equal symbol (≠). Inequalities are used to compare numbers and determine the range or ranges of values that satisfy the conditions of a given variable.
Example of linear inequalities;
Graph the following system of linear inequalities:
y ≤ x – 1 and y < –2x + 1
Graph the first inequality y ≤ x − 1.
We will draw a solid border and shade below the line due to the "less than or equal to" mark.
On the same x-y axis, graph the second inequality, y -2x + 1.
In this instance, the less-than symbol will cause our boundaries to be dashed or dotted. Under the border, cast a shade.
As a result, the darker-colored zone extending indefinitely downward is the solution to this inequality problem, as seen below.
Know more about Linear Inequalities at:
#SPJ4
Answer:
a) Two half lives, b)
Step-by-step explanation:
a) The polonium-210 has a half life of 138.4 days. Therefore, 1.994 half lives have past.
b) Mass decay is described by the following exponential model:
The time constant for the isotope is:
The mass of the isotope after 276 days is: