Answer:
C) 123 cm^2
Step-by-step explanation:
well if we find CD we can cut striat down C and do area of a triangle plus the area of the rectangle.
to find CD you need length of BC
BC^2 = AC^2-AB^2 --> BC^2 = 400-100 --> BC^2 = 300
BC = 300^2 --> about 17 causeing CD being 4
now we have info
triangle area is BxHx 1/2 --> 17x10x1/2 --> 85cm^2
Now we do the small rectangle area is BxH --> 4x10 --> 40cm^2
85 + 40 = 125cm^2
the only one close is 123cm^2
Answer:
4y is your answer........
You must know that % is a number out of 100.
Therefore given 91/100 trusted DNA surveying, we know as a percentage this is 91% from the equation below:
(91/100)*100=91
We can conclude that 1%=1 person.
Although the difference is only 1 (91-90=1), the actual proportion of people who trust DNA testing is larger than the 90% by 1%.
Answer:
The correct answer is b=9
