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derekcalhoun4943
16.12.2020 •
Mathematics
Can someone help me with this I’m in the middle of a test and really don’t know what I’m doing
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Ответ:
x = 9
Step-by-step explanation:
they are equal to each other
3x + 15 = 5x - 3
subtract 3x from borh sides
15 = 2x -3
add 3 to both sides
18 = 2x
divid both sides by 2
9 = x
Ответ:
x=9
Step-by-step explanation:
Since they are corresponding angles, they are the same value. We can then put these two equations equal to each other and solve for x.
Ответ:
OPTION C.
Step-by-step explanation:
The area of a triangle can be calculated with the following formula:
Where "b" is the base of the triangle and "h" is the height of the triangle.
You know that all the triangles that compose the large triangle are equal.
According to the information given in the exercise, the base and the height of any small triangle are:
Therefore, the area of any of them is:
Since there are 4 equal triangles, you need to multiply the area obtained by 4 in order to find the area of the large triangle. This is: