Answer:
5 cars and 3 busses
Step-by-step explanation:
Answer:
We can use the Pythagorean theorem and properties of sines, cosines, and tangents to solve the triangle, that is, to find unknown parts in terms of known parts.
Step-by-step explanation:
Pythagorean theorem: a2 + b2 = c2.
Sines: sin A = a/c, sin B = b/c.
Cosines: cos A = b/c, cos B = a/c.
Tangents: tan A = a/b, tan B = b/a.
Answer:
![300\ people](https://tex.z-dn.net/?f=300%5C%20people)
Step-by-step explanation:
Let
x-----> the total number of people in a survey
we know that
![27\%=27/100=0.27](https://tex.z-dn.net/?f=27%5C%25%3D27%2F100%3D0.27)
so
![0.27x=81](https://tex.z-dn.net/?f=0.27x%3D81)
Solve for x
Divide by 0.27 both sides
![x=81/0.27](https://tex.z-dn.net/?f=x%3D81%2F0.27)
![x=300\ people](https://tex.z-dn.net/?f=x%3D300%5C%20people)
Answer:
11
Step-by-step explanation:
f 7? Z = {−21, −14, −7, 0, 7, 14, 21}