Tax is:
$52* (2.9/100)= $1.51
$52+ $1.51= $53.51
The total cost (including tax) is $53.51~
Answer:
Answer:
a= . −2tv+16/ t^2
Step-by-step explanation:
Hello!
In a rectangle opposite sides are equal. Therefore we have below.
11+11+24+24=70
Therefore, the perimeter cannot be 60 when the width is 11 units.
I hope this helps!
Answer:
1/2, 3
Step-by-step explanation:
This is a pretty involved problem, so I'm going to start by laying out two facts that our going to help us get there.
- The Fundamental Theorem of Algebra tells us that any polynomial has <em>as many zeroes as its degree</em>. Our function f(x) has a degree of 4, so we'll have 4 zeroes. Also,
- Complex zeroes come in pairs. Specifically, they come in <em>conjugate pairs</em>. If -2i is a zero, 2i must be a zero, too. The "why" is beyond the scope of this response, but this result is called the "complex conjugate root theorem".
In 2., I mentioned that both -2i and 2i must be zeroes of f(x). This means that both and are factors of f(x), and furthermore, their product, , is <em>also</em> a factor. To see what's left after we factor out that product, we can use polynomial long division to find that
I'll go through to steps to factor that second expression below:
Solving both of the expressions when f(x) = 0 gets us our final two zeroes:
So, the remaining zeroes are 1/2 and 3.
2(2.5)
2 × 2.5
5
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