81^(-1/4) is the same as the fourth root of (1/81). Which can be written as 4th root of 1 divided by the 4th root of 81.
The 4th root of 1 is 1 (because 1x1x1x1x1=1).
The 4th root of 81 is 3 (because 3x3x3x3=81).
So 81^(-1/4) = 1/3
Answer:
yes
Step-by-step explanation:
Hope this helps:)
Answer:
B.
Step-by-step explanation:
5x + y = 3
10x + 2y = - 3
y = - 5x + 3
2y = - 10x - 3
y = - 5x + 3
y = - 5x - 3/2
These lines have the same slope, but different y-intercept, so they are parallel.
Answer:
- 150π ft²
- 10π ft.
Step-by-step explanation:
Area of the sector :
Finding the area given r = 30 ft. and θ = 60° :
⇒ Area = π × (30)² × 60/360
⇒ Area = π × 900/6
⇒ Area = 150π ft²
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Length of the arc :
Finding the arc length given r = 30 ft. and θ = 60° :
⇒ Arc Length = 2 × π × 30 × 60/360
⇒ Arc Length = 60/6 × π
⇒ Arc Length = 10π ft.
Whole number: 0, 1-9, and all numbers on a number line
Digit: A single number
Place value: The amount of a number based on Its location ( tenths, hundredths )
Rounded Number: A estimated number, a number found using estimation
Equals: numbers that are alike, have the same amount
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