Answer:
answer 11
Step-by-step explanation:
I think it the right answer
Answer:
D) 171 cm²
Step-by-step explanation:
You don’t actually need to decompose it. You could just do it as a trapezoid:
(15+23)/2=19
19x9=171
If you want to decompose it into 2 triangles and a rectangle:
10=15x9=135
1/2(3)(9)=13.5
1/2(5)(9)=22.5
135+13.5+22.5=171 also
Answer:
1,300
Step-by-step explanation:
Order of operations tells us that we should do everything in parentheses first.
Multiplying out (4 x 300) and (4 x 25) gets
1200 + 100
From here, we add the two together to arrive at
1,300
