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3 years ago

12^2 - 6^2 equals what

Mathematics

2 answers:

allsm [11]3 years ago

8 0

Answer:

112

Step-by-step explanation:

12 square= 144

6 squared =36

144-36=112

castortr0y [4]3 years ago

6 0

Answer:

108

Step-by-step explanation:

12^2 = 12 x 12 = 144

6^2 = 6 x 6 = 36

144 - 36 = 108

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If y>0, which of these values of x is NOT in the domain of this equation? y=x2+7x

alisha [4.7K]

Answer:

$\boxed{\sf \ \ \ [-7,0] \ \ \ }$

Step-by-step explanation:

Hello

$y=x^2+7x=x(x+7) >0\\ x>0 \ and \ x+7 >0 \ \ or \ \ x$

So values of x which is not in this domain is

$-7\leq x\leq 0$

which is [-7,0]

hope this helps

6 0

3 years ago

B. subtract polynomials: (3x-5-7x^2) - (-2+6x^2-5x)

yaroslaw [1]

Answer:

8x-7x^2-39

Step-by-step explanation:

4 0

3 years ago

Seven less than the sum of p and r is as much as 6

Norma-Jean [14]

(p + r) - 7 < = 6 (thats less then or equal)

5 0

4 years ago

Find the national root of x^4+3x^3+3x2-3x-4=0

ozzi

Using a graphic tool.
<span>see attached graphic</span>
<span>
the solutions are
x1=-2
x2=0.811

</span>check

for x=-2

x^4+3x^3+3x2-3x-4

(-2) ^4+3(-2) ^3+3(-2) ^2-4=16+(-24)+12-4=0 ok

For x=0.811

(0.811) ^4+3(0.811) ^3+3(0.811) ^2-4=0.4326+(1.6002)+1.9731-4=0 ok

5 0

4 years ago

Which expression is equivalent to the polynomial x2-x-6

OLEGan [10]

Answer:

$(x - 2)(x + 3)$

Step-by-step explanation:

The given polynomial is

${x}^{2} - x - 6$

The factors of -6 that sums up to -1 are -3,2.

We split the middle term to obtain:

${x}^{2} -3 x + 2x - 6$

We factor to get:

$x(x - 3) + 2(x - 3)$

We factor further to get:

$(x - 3)(x + 2)$

The polynomial is equivalent to:

$(x - 3)( x + 2)$

3 0

4 years ago