All categories

3 years ago

If x is an even integer and y is an odd integer than yn yis a rational number

1 answer:

6 0

Answer:Since the integers are closed under addition, . m C n C 1/ is an integer, and hence the last equation shows that x C y is even. Therefore, we Page 3 Appendix C. Answers for Exercises 539 have proven that if x and y are odd integers, then x C y is an even integer. P1 There exists an integer k m D 2k.

Step-by-step explanation:

You might be interested in

What is the greatest common factor of the terms in the polynomial 4x^4-32x^3-60x^2?

jonny [76]

Answer:

$\mathrm{Factor}\:4x^4-32x^3-60x^2:\quad 4x^2\left(x^2-8x-15\right)\\$

$\mathrm{Apply\:exponent\:rule}:\quad \:a^{b+c}=a^ba^c\\x^3=xx^2\\x^4=x^2x^2\\=4x^2x^2-32xx^2-60x^2\\\mathrm{Rewrite\:}60\mathrm{\:as\:}4\cdot \:15\\\mathrm{Rewrite\:}32\mathrm{\:as\:}4\cdot \:8\\=4x^2x^2-4\cdot \:8xx^2-4\cdot \:15x^2\\\mathrm{Factor\:out\:common\:term\:}4x^2\\=4x^2\left(x^2-8x-15\right)$

<em>Hope this helps and have a great day!!!</em>

<em> $Sofia$ </em>

4 0

3 years ago

Andres went out to a restaurant for dinner. His total bill before tax and tip was $27.30. He was charged an additional 9% tax an

Fofino [41]

Answer:

$25.66

Step-by-step explanation:

Given data

Total Bill before tax and tip= $27.30

Tax= 9%

Tip= 15%

Let us find the tax

=9/100*27.30

=0.09*27.30

=$2.457

Let us find the tip

=15/100*27.30

=0.15*27.30

=$4.095

Therefore his bill after tax and tip is

=27.30+2.457-4.095

=$25.66

4 0

2 years ago

Expand and simpify (x+4)(x-7)

erica [24]

Answer:

x^2 - 3x - 28

Step-by-step explanation:

(x+4)(x-7)

x^2-7x+4x-28

$x^{2}-3x-28$

6 0

3 years ago

Forty-eight decreased by a number is the same as the difference of four times the number and seven. Find the number

vagabundo [1.1K]

Turn the text into an eqation:

48-x = 4x-7
5x = 55
x = 11

5 0

3 years ago

Read 2 more answers

Please help a girl out:

Yuki888 [10]

Answer:

Look at the image.

Step-by-step explanation:

If 12 is 24%, then half of the percent is the actual number.

36% = 18

24% = 12

18% = 9

22% = 11

18 + 12 + 9 + 11 = 50

18 students would like to learn Spanish.

7 0

3 years ago