3 tens
7 ones
This is the same as 30+7 which is 37
That would depend on the size of your classroom. but, typically the answer is no
- cos ( 1/2 x + 1/5 π ) = 0 ( and because if cos α = 0, α= π/2 + k π, k ∈ Z )
1/2 x + π/5 = π/2 + k π, k ∈ Z
1/2 x = π/2 - π/5 + k π / * 2
x = π - 2π/5 + 2 k π
x = 3/5 π + 2 k π = 0.6 π + 2 k π
Answer:
If k = 0: x 1 = 0.6 π = 3π/5
k = 1 : x 2 = 2.6 π = 13π/5
9514 1404 393
Answer:
150
Step-by-step explanation:
The increase is by the factor 5/3, so the increased number is ...
90×(5/3) = 150
90 increased in the ratio 5 : 3 is 150.
