All I know for sure is that the first one is an inequality
Answer:
<h3>
f(10) = 37</h3>
Step-by-step explanation:
f(n) = 4n - 3
f(10) = 4×10 - 3 = 40 - 3 = 37
I would say b but i’m not 100% sure lol
Answer:
V ≈ 68.63 cm³
Step-by-step explanation:
the volume (V) of a sphere is calculated as
V =
πr³
the volume of a hemisphere is half the volume of a sphere, so
V =
×
πr³ =
πr³ , then
V =
π × 3.2³
=
π × 32.768
≈ 68.63 cm³ ( to 2 dec. places )
Jack must score 28 problems correct. To get a 92% he must answer 92% of the 30 questions right. which means 0.92*30=27.6, but it is not possible to score 0.6 of a problem right so you would round to 28, which guarantees Jack scores a 92 because if we round down, Jack would score less than a 92