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Marina86 [1]
3 years ago
8

X+12/2x-5 - 3x-2/2x-5

Mathematics
2 answers:
BARSIC [14]3 years ago
8 0

Answer:

the answer to this question is 3x-10

11Alexandr11 [23.1K]3 years ago
4 0

Answer:

3x-10

Step-by-step explanation:

i cant explain it

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30 Points I NEED HELP ASAP MATH PROBLEM 7th Grade
shutvik [7]

Answer:

-45 =x

Step-by-step explanation:

1/5(4x-2.5) = 5(.4x+10) +3 1/2

Change all to decimal form

.2(4x-2.5) = 5(.4x+10) +3.5

Distribute

.8x - .5 = 2x +50 + 3.5

Combine like terms

.8x - .5 = 2x +53.5

Subtract .8x from each side

.8x-.8x - .5 = 2x-.8x +53.5

-.5 = 1.2x +53.5

Subtract 53.5 from each side

-.5 -53.5 = 1.2x +53.5-53.5

-54 = 1.2x

Divide each side by 1.2

-54/1.2 = 1.2x /1.2

-45 =x

7 0
3 years ago
raising a negitive base to an even exponent power will always, sometimes, or never give a negitive result
maxonik [38]
This is multiplying an even number of negatives together so the answer will always be positive
6 0
3 years ago
V(x)=x^2-25
Whitepunk [10]

Answer:

  -∞ < x < -5 ∪ -5 < x < -3/2 ∪ -3/2 < x < ∞

Step-by-step explanation:

The domain of any polynomial is "all real numbers." The domain of any rational function excludes any values of the variable that result in the denominator being 0. The function is "undefined" there.

__

  v(x)=\dfrac{x^2-25}{2x^2+13x+15}=\dfrac{(x+5)(x-5)}{(x+5)(2x+3)}\qquad x\notin \{-5,-\dfrac{3}{2}\}

The values x=-5 and x=-3/2 make the denominator of v(x) become 0, so those values are excluded from the domain of v(x). The function is "undefined" when its denominator is zero.

  -∞ < x < -5 ∪ -5 < x < -3/2 ∪ -3/2 < x < ∞

_____

<em>Additional comment</em>

The numerator and denominator factors (x+5) cancel each other, so there is no vertical asymptote at x=-5. Rather, the function has a "hole" there, where it is undefined. The limit as the function approaches x=-5 from either direction is v(x) = 10/7.

7 0
2 years ago
8a2 = 12 + a plzzzzzzzzzzzzzzzzzzzzzzzzzz help me slove this problem
polet [3.4K]

Answer:

1.28

Step-by-step explanation:

Assuming in 8a2 the '2' represents an exponent, you answer should be

1.28

3 0
3 years ago
A number plus two and three tenths
morpeh [17]
X + 2.3
or for fractions:
x + 2 3/10
3 0
3 years ago
Read 2 more answers
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