Answer:
the second and last sentences.
Step-by-step explanation:
Its the most reasonable!
9514 1404 393
Answer:
shaded/square = (50π cm²)/(400 cm²) = π/8
Step-by-step explanation:
The quarter circle has area ...
A = (1/4)(πr²) = π/4(20 cm)² = 100π cm²
The half-circle has area ...
A = (1/2)(πr²) = π/2(10 cm)² = 50π cm²
Then the area of the shaded portion is ...
shaded = 100π cm² -50π cm² = 50π cm²
__
The area of the square is ...
A = s² = (20 cm)² = 400 cm²
Then the ratio of interest is ...
shaded/square = (50π cm²)/(400 cm²) = π/8
Speed of Rachel is 38m/s.
Step-by-step explanation:
- Step 1: Given equation for distance D = 38t + 220
- Step 2: Formula for Speed = Distance/Time
- Step 3: Differentiate the formula for distance with respect to time to find speed
⇒ Speed = d/dt(38t + 220) = 38
Answer:
fill the grid by 108 (cubes?) which represents 1.08 km. then add 94 cubes which represents 0.94 km. count how much is in the grid and you've found how many km they hiked in all. 2.02 KM
Step-by-step explanation:
Answer:
a)There are 14 teachers in Ryan's sample, and 362 teachers in the population.
Step-by-step explanation:
<u> Population:-</u>
<em>The totality of observations with which we are concerned, whether this number be finite or infinite is called population.</em>
<em>Given data population is 376 teachers at a university were female'</em>
<u><em>Sample:-</em></u>
A sample is a subset of a Population
sample of given data = 14teachers
The percentage of 376 teachers at a university were female, Ryan randomly selected 14 teachers.
<em /><em> = 3.72%</em>