Answer: (-1,2)
Step-by-step explanation:
Answer:
Step-by-step explanation:
Answer:
m
Step-by-step explanation:
Answer:
14
Step-by-step explanation:
we are solving 15 + |-3| - 4
anything inside | | means it's absolute value.
absolute value means that even if it is a negative number inside, it will change to positive. if it is a positive number inside, it will stay the same.
so |-3| is 3.
15 + 3 - 4
18 - 4 = 14.
we got the answer
Answer:
hello,
Step-by-step explanation:
a)
In an isocele triangle, base's angles have the measure:
42+2a=180
2a=180-42
a=69(°)
b)
in a triangle, an external angle has for measure the sum of the angles not adjacents.
55+b=132
b=77 (°)
c)
in a quadrilater the sum of the (interior) angles is 2*180=360 degrees.
90+90+68+c=360
c=360-90-90-68
c=112 (°)
