Answer:
Step-by-step explanation:
<u>Given inequality:</u>
<u>Verify if (-1, 1) is correct:</u>
- 7(-1) + 2(1) > - 5
- - 7 + 2 > - 5
- - 5 > - 5
False inequality, it is not the solution
Answer:
31.5cm²
Step-by-step explanation:
area of a triangle =1/2 b h
b= 7cm
h=9cm
1/2×7×9
= 1/2×63
= 31.5cm²
hypotenuse is unknown so,
c²=a²+b²
c²= 7² + 9²
= 49 + 81
c²= 130
c= 11.4cm
perimeter= 7 +9+11.4
=27.4cm
pls note that no unit was stated
