2 years ago

Identify the algebraic expression that represents the word phrase "7 less than a number

Mathematics

1 answer:

Ghella [55]2 years ago

4 0

Answer: since the 7 has to be less than a number, the equation would be n-7

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Consider the relation y = −8|x + 3| − 9. what are the coordinates of the vertex? (−3, 9) (−3, −9) (3, −9) (3, 9)

german

By simple substitution on the left side and on the right side of the given equation, we have to
For coordinates (-3,-9)
-9=−8|-3+3|−9
-9=−8|0|−9
 -9=−9
Therefore, it is demonstrated that the coordinates of the vertex is
(-3,-9)

7 0

3 years ago

Can someone please help me on this question! Thank you very much!!

Elis [28]

First find the area of the triangle (on top) and then subtract the area of the circle (on bottom) since the triangle is Equilateral, you can assume that the height can be found by using the 30 60 90 angle relationship. To find the radius of the circle, divide the height by 2.