Answer:7 familes
21 divided by 3=7
Step-by-step explanation:
Answer: see below
Step-by-step explanation:
30 - 60 - 90 triangles have angles in the triangle measuring 30, 60, and 90 degrees. A 30 - 60 - 90 triangle also has special side ratios according to a side's location in the triangle.
The side across from the 30 degree angle is represented by x.
The side across from the 60 degree angle is represented by x.
The side across from the 90 degree angle is represented by 2x.
45 - 45 - 90 triangles have angles in the triangle measuring 45, 45, and 90 degrees. A 45 - 45 - 90 triangle has special side ratios similar to the 30 - 60 - 90 triangle.
The side across from either of the 45 degree angles is represented by x.
The side across from the 90 degree angle is represented by x.
These ratios can be used to find missing sides. If you know that a triangle is one of these special triangles and you also know one of its side lengths, you can plug the known length in for x in the proper place.
EX: you have a 30 - 60 - 90 triangle with a side length of 2 across from the 30 degree angle. You then know that the side across from 60 is 2 and the side across from 90 is 4.
Answer:
the answer is 9/4 as improper
Answer:
the answer is 614
Step-by-step explanation:
hope it help!!
Answer:
False,
False,
True,
False
Step-by-step explanation:
1) f is not one to one:
example: /pie nit equal to 2/pie but,
sin(/pie)=sin(2/pie)=0.
2) f is not onto in R, becose sinx is not for example 2, or any other real number greater then 1.
3) is true
4) for any x e^x is positive, so g: R—>R, so e^x will never be for example -5 which is real number:)