45% right if .5 x 90 = 45 and as a percentage it would be 45%
Answer:
The answer to your question is:
a) sinФ = -4/√17
b) cosФ= 1/√17
c) tanФ = -4
Step-by-step explanation:
Just draw a right triangle where the opposite leg is -4/√17 the adjacent leg is 1/√17 and the hypotenuse is 1.
then sine Ф = opposite / hypotenuse = -4/√17 / 1 = -4/√17
cosine Ф = adjacent /hypotenuse = 1/√17 / 1 = 1/√17
tan Ф = opposite / adjacent = -4/√17 / 1/√17 = -4/1
All of the above. it is a three dimensional pyramid, and a "polyhedron" means it is triangular.
We know that π = 180°, therefore:
1.

Answer: correct
2.

Answer: no correct
3.

Answer: no correct
4.

Answer: correct
5.

Answer: correct
Answer:
90
Step-by-step explanation:
50+40=90
i really hope this helps... take care