Find the surface area of the triangular prism shown below.
2 answers:
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Answer:
<h2>(x + 7)² + (y + 2)² = 49</h2>Step-by-step explanation:
The standard form of an equation of a circle:
(h, k) - center
r - radius
We have:
center (-7, -2) → h = -7 and k = -2
radius r = 7.
Substitute:
We have the expression
We have to convert the expression in a single-term expression. We apply the distributive property:
b) We have to substitute five different values into the expressions 5x+2x and 7x-1.
The first expression is equal to 5x+2x=7x.
We then can predict that the difference between 7x and 7x-1 is 1.
For example, for x=2, we have 7x=7*2=14 and 7x-1=7*2-1=14-1=13.
We can calculate if the two expressions can be equal, we write:
There is no value that can make both expressions equal.
Both equations have a difference of 1 for any value of x.