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7nadin3 [17]
3 years ago
5

I don't understand this, HELPP

Mathematics
1 answer:
Scrat [10]3 years ago
7 0
90-x = the complement
180-x = the supplement.

So on the second column, the 50° is actually correct, but the 90° isn't, because that should be 180-50 = 130° (alternatively you could just add 90 to the complement to get the supplement)
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Please help it would be a greatly supported.
USPshnik [31]

Answer:

  D.  N = w² + 8w + 12

Step-by-step explanation:

The current size is w by w+4, so the area is ...

  A = w(w+4)

When each dimension is increased by 2, the new size is (w+2) by (w+4+2). The latter dimension can be simplified to (w+6). Now, the new area is ...

  N = (w+2)(w+6) = w² +8w +12 . . . . . . . matches choice D

8 0
4 years ago
Factor the polynomial function over the complex numbers?? <br><br><br><br> F(x)= x^4 -x^3-2x-4
pav-90 [236]

Answer: The factor form of the function F(x) is (x+1)(x-2)(x^2+2), where  (x^2+2) gives two complex roots.

Explanation:

The given function is,

F(x)=x^4-x^3-2x-4

According to the rational root theorem 1 and -1 are the possible roots of each polynomial.

Put x=-1

F(-1)=(-1)^4-(-1)^3-2(-1)-4=0

Since the value of F(x) is 0 at x=-1 therefore the -1 is a root of given polynomial and (x+1) is a factor of F(x).

Use synthetic division method to divide the polynomial by (x+1).

The last row of the synthetic division shows the coefficient of remaining polynomial.

F(x)=x^4-x^3-2x-4=(x+1)(x^3-2x^2+2x-4)

At x=2 the value of F(x) is 0, therefore (x-2) is a factor of F(x).

Use synthetic division method to divide the polynomial by (x-2).

F(x)=(x+1)(x-2)(x^2+2)

Therefore the roots of F(x) are,

-1,2,\pm i\sqrt{2}

F(x)=(x+1)(x-2)(x+i\sqrt{2})(x-i \sqrt{2} )

Where (x+1)(x-2) factors with real root and (x+i\sqrt{2})(x-i \sqrt{2} ) are factors with complex roots.

8 0
3 years ago
Solve and graph |-8x|&lt;8 help me lol
gregori [183]

Step-by-step explanation:

|-x|<1 --> -1<-x<1 --> -1<x<1

so the graph is the striped part

3 0
3 years ago
What is the solution to this system of equations ?
Vanyuwa [196]

Answer: x=2,y=6,z=−5

Step-by-step explanation:

7 0
3 years ago
When the radius of a circle is multiplied by a factor of 2 22, by what factor will the area of the circle change?
MAXImum [283]
A = pi (r)^2
so with 222r

circle changes by a factor of 222^2
6 0
3 years ago
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