Answer:
42.5
Step-by-step explanation:
Is this from khan? Meh, anyways, we need to find the area of the missing sides first.
The formula for area of a triangle is:
1/2(b×h)
So we multiply two and two and you get four. 2×2=4
Then you divide and that would be two. 4÷2=2
For the next one, you do the same.
You multiply five and two, which gives you ten. 5×2=10
Then you divide by two, which gives you five. 10÷2=5
Then you add the missing area lengths together to get a total of seven.
Then you would find the entire area. By that, I mean the whole thing.
I'm not sure if you noticed but the height of the missing triangle on the left is two.
2+3.5=5.5.
So that means that we have found out the entire height.
5.5×9=49.5
But that's not the answer. That's because the shape most certainly not a whole shape. It has some missing parts, if you see what I mean.
So that means that you have to subtract the area missing from the total area. That would be....
49.5 - 7 = 42.5
total missing actual
area area area
350 plus 10?
that equal or do tey want something more extreme
22.5 would be it because the radius of the garden is 25 and the rafius of the horses rope circle is 2.5 then take 25-2.5 which =22.5 so the answer is 22.5
Answer:
10x² - 12
Step-by-step explanation:
4x² - 7 + 6x² - 5 (combine like terms)
10x² - 12
Answer:
B
Step-by-step explanation:
Reflection is a transformation that preserves lengths.
Triangle XYZ, with side lengths XY = 7 in, YZ = 5 in, XZ = 4 in, is reflected across the x-axis to result in △X'Y'Z'.
This means that corresponding sides have the same lengths:
- XY = X'Y' = 7 in;
- XZ = X'Z' = 4 in;
- YZ = Y'Z' = 5 in.
Find the perimeters of both triangles:
Hence, only option B is true.
