Answer:
cos 78⁰.
Step-by-step explanation:
Use cos 2A = cos^2 A - sin^2 A
so cos^2 39 - sin^2 39 = cos (2*39) = cos 78.
Answer is “A”
Because since we know if we need to find the y is so we need to subtract 11-2.9=8.1
which mean y mean 8.1
The number is already in prime factored form. The prime factors are 2, 3, 5, and 7. If we multiply everything out then we end up with 2100
Answer:
Answer to D is yes it is possible as only two outcomes being correct or being incorrect, and this creates 1/2 being 50% chance.
Answer to E is yes it is unlikely, as when something is of equal chance this means each random answer has a likelihood of alternating.
After all making tea can include length of time factors to stir the milk, dissolve the sugar and nothing is specified if these factors were equally timed or not.
Furthermore the lady determining whether tea was added first with milk or not may have her taste sensory changed as one may be change of flavor to another equally also, considering tea strengths and any difference of batch leaves.
Step-by-step explanation: