Answer:
The outering is 11 cm so let's see what the Area is. We use the formula Area of a circle:
A = πr² = πd2/4
If:
Radius, r = 11 cm
Then:
Diameter, d = 22 cm
Circumference, C = 69.115038378975 cm
Area, A = 380.13271108436 cm²
now all we need to do is subtracts the inner circle Area.
If:
Radius, r = 9 cm
Then:
Diameter, d = 18 cm
Circumference, C = 56.548667764616 cm
Area, A = 254.46900494077 cm²
Thus: 380.13271108436 cm² - 254.46900494077 cm² =
125.6637061436 cm²
Step-by-step explanation:
3,000 is the smallest number and 300,000 is the largest number
Answer:
$50,290
Step-by-step explanation:
I was earning $47,000 per year until she received a 7% raise at the start of 2019.
Step 1
We find how much 7% raise is
Hence,
7 % of $47,000
= 7/100 × $47,000
= $3290
What will her new salary be?
Her new salary is calculated as:
Last year's salary + 7% raise
= $47,000 + $3290
= $50,290
Her new salary is $50,290
Answer:
They are congruent by opposite exterior angles
RST is congruent to UVT
UV is congruent to SR
Answer:
The day would be 3.125 seconds longer in 25 centuries.
Step-by-step explanation:
Let's break it down.
Each year, 1250 microseconds are added to the planet's day.
We need to find how long a day would be in 25 centuries.
A century is 100 years.
A second is 1,000,000 microseconds.
The day would be 3.125 seconds longer in 25 centuries.