Answer:
36.94
Step-by-step explanation:
Multiply 34.85 (the total cost of the book and mags) by 0.06 (cost of sales tax) = 2.91
34.94 + 2.91 = 36.94
28. it is not a right angle triangle because non of the angles is 90 degree
Answer:
21.b
22.c
Step-by-step explanation:
idk how to explain it lol I did mental math
I am not quite sure what the question asks for,
But this is what i assume it wants:
Cos A= 0.6489
In this given one, we basically find the size of the angle A
we do cosine inverse on both sides to get the size of the angle A

: It looks like this in the calculator

× cos A=

(0.6489)
(

and cos cancels out)
A=

(0.6489)
A=49.54°
check:
cos 49.54=0.6489 (its right!)
The entire picture is needed to solve. the bottom of the pic is cut off