Answer: 197.92 square inches
step by step:
volume of a cone is V=πr^2h/3
1. divide diameter by 2 to find radius
r = diameter/2
r = 6”/2
r = 3”
2. plug in known values of r and h to find V
V = πr^2h/3
V = π(3”)^2(21”)/3
V = π(9”)(7”)
V = 197.72 square inches
Y=10°
If we're solving for the ninety degree angle, which I seem to doubt, then if 3x=90 then 2x=60 giving a missing total of 30. 30/3 equals 10
<h3>Solution</h3>
arc DE = 36/360 × (2 × π × 10)
⟹ 1/10 × 20π
⟹ 2π
⟹ 2 × 3.14
⟹ 6.28 ≈ 6.3 cm (third option)
Sarah had some cookies. She then gave her friend, Mike, eight cookies.
Answer: C.Sample 2: 10 boys and 35 girls
Step-by-step explanation:
The class president wants to survey the students at the high school about the selection of food offered by the school cafeteria. The president knows that there are 150 boys and 175 girls.
girls in the high school. Which of the following is a representative sample of the high school population?
A.Sample 4: 7 boys and 6 girls
B.Sample 1: 10 boys and 10 girl
C.Sample 2: 10 boys and 35 girls
D.Sample 3: 6 boys and 7 girls