Answer:
B: 81π inches
Step-by-step explanation:
The formula for the circumference of a circle is C = πd and the formula for the area of a circle is A = πr²
- The formula for the circumference of a circle can also be written as C = 2πr since the diameter is equal to double the radius (d = 2r)
- So we need to solve for r since that is the variable we are missing in order to solve for the area
Plugging in our known values to the circumference formula we have:
- 18π = 2πr
- Then dividing both sides by 2π we have 9 = r
Now that we have solved for the radius, we can plug in this value to the area formula:
Answer:
We can deduce that the elasticity of the labor supply is greater than 1 the labor supply is considered elastic
Step-by-step explanation:
The formula to use is the following:
Elasticity = (Change in working hours / Average working hours) / (Change in wage rate / Average wage rate)
we replace the data
Elasticity = [(7 - 3) / (7 + 3) / 2] / [(50 - 30) / (50 + 30) / 2]
Elasticity = [4 / (10/2)] / [20 / (80/2)]
Elasticity = (4/5) / (20/40)
Elasticity = 0.8 / 0.5
OUTCOME
Elasticity = 1.6
We can deduce that the elasticity of the labor supply is greater than 1 the labor supply is considered elastic
Answer: The number is 27
The system of equations is: 7x - 2y = 0
-9x + 9y = 45
<u>Step-by-step explanation:</u>
Let x represent the number in the tens place and y represent the number in the ones place. <u>x</u> <u>y</u>
Then 10x + y = 3(x + y)
When the digits are reversed: 10y + x = 10x + y + 45
Simplify each of the above equations and then create a system of equations:
10x + y = 3x + 3y → 7x - 2y = 0
10y + x = 10x + y + 45 → -9x + 9y = 45
9( 7x - 2y = 0) → 63x - 18y = 0
2(-9x + 9y = 45) → <u> -18x + 18y </u>=<u> 90</u>
45x = 90
x = 2
Input x = 2 into either equation to solve for y:
7x - 2y = 0
7(2) - 2y = 0
14 = 2y
7 = y
Answer:
I don't know where those answers are coming from, but I got:
23s - 145
Answer:
no seeeeeeeee.....
Step-by-step explanation:
lo siento;(
