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3 years ago

IS A RIGHT ??! PLZ HELP ASAP !!

Mathematics

2 answers:

guapka [62]3 years ago

7 0

It should be the right answer.

Mariana [72]3 years ago

6 0

Answer:

I think so

Step-by-step explanation:

Please mark brainliest and I will give you a good report

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What is the sign of A +B?

lesya [120]

Answer:

The answer is AB

Step-by-step explanation:

As A+B=AB

6 0

3 years ago

No scam or link and dont act like u cant see it or i will report u

fomenos

Answer:

14.

-3(6-r)=6

6-r=6/-3

6-r=-2

6+2=r

r=8

error is:

-18+3r not -18-3r

4 0

3 years ago

Read 2 more answers

Which expression is a sum of cubes?

erik [133]

we know that

A polynomial in the form $a^{3} +b^{3}$ is called a sum of cubes

Let's verify each case to determine the solution

case A) $-64x^{6} y^{12} +125x^{16} y^{3}$

we know that

$-64=-4^{3}$

$x^{6}= (x^{2})^{3}$

$y^{12}= (y^{4})^{3}$

$125=5^{3}$

$x^{16}=x^{15} *x=x*(x^{5})^{3}$ -------> is not a perfect cube

$y^{3}= (y)^{3}$

therefore

the case A) is not a sum of cubes

case B) $-32x^{6} y^{12} +125x^{16} y^{3}$

we know that

$-32=-2^{5}$ -------> is not a perfect cube

$x^{6}= (x^{2})^{3}$

$y^{12}= (y^{4})^{3}$

$125=5^{3}$

$x^{16}=x^{15} *x=x*(x^{5})^{3}$ -------> is not a perfect cube

$y^{3}= (y)^{3}$

therefore

the case B) is not a sum of cubes

case C) $32x^{6} y^{12} +125x^{9} y^{3}$

we know that

$32=2^{5}$ -------> is not a perfect cube

$x^{6}= (x^{2})^{3}$

$y^{12}= (y^{4})^{3}$

$125=5^{3}$

$x^{9}=(x^{3})^{3}$

$y^{3}= (y)^{3}$

therefore

the case C) is not a sum of cubes

case A) $64x^{6} y^{12} +125x^{9} y^{3}$

we know that

$64=4^{3}$

$x^{6}= (x^{2})^{3}$

$y^{12}= (y^{4})^{3}$

$125=5^{3}$

$x^{9}=(x^{3})^{3}$

$y^{3}= (y)^{3}$

Substitute

$4^{3}(x^{2})^{3}(y^{4})^{3} +5^{3}(x^{3})^{3}(y)^{3}$

$(4x^{2}y^{4})^{3} +(5x^{3}y)^{3}$

therefore

the answer is

$64x^{6} y^{12} +125x^{9} y^{3}$ is a sum of cubes

6 0

3 years ago

Read 2 more answers

HELPPP ME PLEASEEEEEEEEE

geniusboy [140]

Answer:

Step-by-step explanation:

7 0

3 years ago

3. Encontrar la medida de cada angulo en grados.

Bas_tet [7]

Answer:

En español:

A. Rotación de tres cuartos en sentido antihorario.

3/4 = 270 grados

B. Cinco sextos de rotación en sentido antihorario.

5/6 = 300 grados

C. Diez octavos de rotación en el sentido de las agujas del reloj.

10/8 = 450 grados

D. Un quinto de rotación en el sentido de las agujas del reloj

1/5 = 72 grados

In English:

a. Three-quarter rotation counterclockwise.

3/4 = 270 degrees

b. Five sixths of rotation counterclockwise.

5/6 = 300 degrees

c. Ten-eighths of a clockwise rotation.

10/8 = 450 degrees

d. One-fifth clockwise rotation

1/5 = 72 degrees

7 0

3 years ago