Answer:
3/4 students (75/100)
Step-by-step explanation:
in total there are 100 students. 75 of them either like sports or works.
Answer:
no
Step-by-step explanation:
A right triangle consists of one angle being 90 degrees. Contrast to this picture, the triangle has no angle of 90 degrees.
Answer:
A = 38°
Step-by-step explanation:
We are going to use cosine law to find angle A where
a = 4.7
b = 3.9 m
c = 2.9 m
or
cos A = [(4.7)^2 + (3.9)^2 - (2.9)^2]/2(4.7)(3.9)
= 28.89/36.66
= 0.788
A = arccos(0.788) = 38°
Answer:
Step-by-step explanation:
If you'd graph this function on a graphing calculator or graphing utility, you'd see quickly that the graph never touches or crosses the x-axis. This tells us immediately that there are no real roots; all four roots are complex or imaginary.
