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3 years ago

20. When subtracting u- v, I must rewrite the pair as

Mathematics

2 answers:

Komok [63]3 years ago

5 0

Answer:

Step-by-step explanation:

you just get the same anwser

amm18123 years ago

3 0

It doesn’t matter you get the same answer

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Thank you guys for helping me :) :)

Ainat [17]

Answer:

The second one is right

Step-by-step explanation:

Hope it helpssss

4 0

3 years ago

Factor 3(8x-4) Sbshbshsbsh

tangare [24]

Answer:

i think its 24x-12? sorry if it is wrong

7 0

3 years ago

Classify the following angle. 28. I WILL GIVE BRANLIEST!!!!!! RATE AND VOTE!!!!HELPP

Kaylis [27]

Answer:

reflex angle

Step-by-step explanation:

Acute is less than 90

Right = 90

Obtuse is greater than 90 and less than 180

Straight is 180

Reflex is greater than 180 and less than 360

This is greater than 90 and less than 180 so it is a reflex angle

3 0

3 years ago

Find the value of x so that the ratios 8: x and 12: 18 are equivalent.

Vladimir79 [104]

Answer:

I could be wrong, but I think it's x=12

7 0

3 years ago

Read 2 more answers

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, 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

$x^7+128=0$

Thus, the given polynomial is of degree 7 and hence has 7 complex roots.

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