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3 years ago

A store owner bought a jacket for $20. She sold it in her store for $35.

Mathematics

2 answers:

uranmaximum [27]3 years ago

5 0

There was a 75% mark up on the jacket

maksim [4K]3 years ago

5 0

What is the the percent of the markup on the jacket? 15

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Based on the Fundamental Theorem of Algebra, how many complex roots does each of the following equations have? Write your answer

Galina-37 [17]

According to the fundamental theorem of algebra, <span>every polynomial of degree n has n complex zeroes.

Part A:

Given

$x(x^2-4)(x^2+16)=0 \\ \\ \Rightarrow x(x^4+12x^2-64)=0 \\ \\ \Rightarrow x^5+12x^3-64x=0$

Thus, the given polynomial is of degree 5 and hence has 5 omplrex roots.

Part B:

Given

$(x^2+4)(x+5)^2 = 0 \\ \\ \Rightarrow(x^2+4)(x^2+10x+25)=0 \\ \\ \Rightarrow x^4+10x^3+25x^2+4x^2+40x+100=0 \\ \\ \Rightarrow x^4+10x^3+29x^2+40x+100=0$

Thus, the polynomial is of degree 4 and hence has 4 complex roots.

Part C:

Given

$x^6-4x^5-24x^2+10x-3=0$

Thus, the given polynomial is of degree 6 and hence has 6 complex roots.

Part D:

Given

$x^7+128=0$

</span><span>Thus, the given polynomial is of degree 7 and hence has 7 complex roots.</span>

Part E:

Given

$(x^3+9)(x^2-4)=0 \\ \\ \Rightarrow x^5-4x^3+9x^2-36=0$

Thus, the given polynomial is of degree 5 and hence has 5 complex roots.

4 0

3 years ago

BRAINLIEST IF CORRECT

kondaur [170]

B then that’s how you get the answer

4 0

3 years ago

Ind g(x), where g(x) is the translation 5 units right of f(x) = x.

iragen [17]

Answer is D
A is translating up
B is translating down
C is multiplying so no

6 0

3 years ago

Please help, find the answer please

Nata [24]

Answer:

4x = y

Step-by-step explanation:

A. The graph doesn't make sense to me. 2 would be 8 not 6 according to the problem.

The Graph would be:

1:4

2:8

3:12

4:16

5:20

6:24

B. I would make this equation: 4x = y

X is representing how many steps Audrey takes.

So then substitute:

4 · 50 = 200

Meg would travel 200 feet.

7 0

3 years ago

If two triangles are congruent, which of the following statements must be true? Check all that apply.

bonufazy [111]

Answer:

All statements are correct for two congruent triangles

Step-by-step explanation:

If two triangles are congruent than the rules states that

Triangles are congruent when all corresponding sides and interior angles are congruent. The triangles will have the same shape and size, but one may be a mirror image of the other.

As the fig shows two triangle

Δ PQR

Δ LMN

All three corresponding sides of triangle are congruent

all three corresponding angles are congruent

Both triangle are of same size

Both are of same shape

hence all the statements are CORRECT

Keywords:Geometry

Learn more about Geometry at:

mathopenref.com/congruenttriangles.html
brainly.com/question/3617539

#learnwithBrainly

6 0

4 years ago