H-4=-2
Then you can add 4 to both sides then you get H=2
check the picture below.
make sure your calculator is in Degree mode.
Answer:
The average value of a, b and c is
Step-by-step explanation:
Average value:
Sum of all values by the number of values.
In this question:
3 values, a, b and c.
We have that:
Since
The average value of a, b and c is
Answer:
d
Step-by-step explanation:
if the sum of two sides of a triangle >than the third side.
or difference of two sides <third side then it forms a triangle.
so d
5+9>10
10+5>9
10+9>5
or 9-5<10
10-9<5
10-5<9
all are correct .