3(n-7)=-30
3n-21= -30
3n = -9
n= -3
Answer:
I count 10 triangles.....
Answer:
62.92
Step-by-step explanation:
21 percent of 52$ is 10.92 then add em together hope it helps
Answer: Given a sample of 200, we are 90% confident that the true proportion of people who watched educational TV is between 72.1% and 81.9%.
Step-by-step explanation:


=0.049
0.77±0.049< 0.819, 0.721
Answer:
Triangle: True
Parallelogram: False, area is 63cm^2
Trapezoid: True
Step-by-step explanation:
Use area calculators on the internet to find the area of shapes.