Answer:
28.2743 square feet (28 square feet, rounded)
Step-by-step explanation:
The area of a circle is given by the equation
Area = πr^2
Plug in 3 for the radius
Area= π(3)^2
3 squared is 9
Area= 9 π
Area= 28.2743 square feet
Rounded to the nearest square foot, the area of the circle is 28 square feet.
Question number 1:
Answer:
Answer B
Step-by-step explanation:
Add the prices
$143.99 + $82.40 = $226.39
Multiply by 6
$226.39 · 6 = $1358.34
Answer B, 1358.34
Answer:
1) Communism: government led by a single party often authoritarian.
2) Democracy: government that allows people to choose their leaders.
3) Socialism: government that owns goods and services. It encourages cooperation rather than competition.
4) Oligarchy: government of a few individuals usually wealthy, of certain race often authoritative rulers.
5) Monarchy: Government of one person that usually inherits it. Often inherited by gender. They can be constitutional with limited power or absolute, with unlimited power.
6) Theocracy: leader of a specific religion.
7) Totalitarianism: Government of one person without limitations of power.
8) Military Dictatorship: countries ruled by one person with absolute power.
Step-by-step explanation:
Its fairly straightforward. Since the bottom equation only has one unknown,x, because y=1.3, you can plug y in and solve for x. Once you find the value of x, you then have the value for two variables, x and y, and again have one unknown coefficient a. To solve for the coefficient you just plug in your y value (1.3) and your x value (which can be rounded to 0.42). Using a little bit of algebra, you can then solve for a which should be a=2.108. I am not sure if your teacher wants you to solve it this way but you could also use the elimination method or substitution method that you would of learned when discussing system of equations. But no matter which way you do it, the math follows the rules. Hope this helps. I’d suggest you solve it yourself to double check my work.
To verify my credibility,
I am a Mechanical Engineering major w/ minor in mathematics
