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7nadin3 [17]
2 years ago
13

How many solutions does 2x = 2x -9 have?

Mathematics
1 answer:
Lana71 [14]2 years ago
3 0

Answer:

no solutions. a number cannot equal itself -9

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Step-by-step explanation:

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2 years ago
Find the inverse of f(x)=-1/3x-5
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Factor 3a^3 + 18a² + 8a + 48 completely.
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Answer:

(3a2 + 8) • (a - 6)

Step-by-step explanation:

STEP 1:

Equation at the end of step 1

 (((3 • (a3)) -  (2•32a2)) +  8a) -  48

STEP  2:

Equation at the end of step 2:

 ((3a3 -  (2•32a2)) +  8a) -  48

STEP 3:

Checking for a perfect cube

3.1    3a3-18a2+8a-48  is not a perfect cube

Trying to factor by pulling out :

3.2      Factoring:  3a3-18a2+8a-48

Thoughtfully split the expression at hand into groups, each group having two terms :

Group 1:  8a-48

Group 2:  -18a2+3a3

Pull out from each group separately :

Group 1:   (a-6) • (8)

Group 2:   (a-6) • (3a2)

              -------------------

Add up the two groups :

              (a-6)  •  (3a2+8)

Which is the desired factorization

Polynomial Roots Calculator :

3.3    Find roots (zeroes) of :       F(a) = 3a2+8

Polynomial Roots Calculator is a set of methods aimed at finding values of  a  for which   F(a)=0  

It would only find Rational Roots that is numbers  a  which can be expressed as the quotient of two integers

The Rational Root Theorem states that if a polynomial zeroes for a rational number  P/Q   then  P  is a factor of the Trailing Constant and  Q  is a factor of the Leading Coefficient

In this case, the Leading Coefficient is  3  and the Trailing Constant is  8.

The factor(s) are:

of the Leading Coefficient :  1,3

of the Trailing Constant :  1 ,2 ,4 ,8

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3 years ago
The lengths, in inches, of adult corn snakes are normally distributed with a population standard deviation of 6 inches and an un
liubo4ka [24]

Answer: 2.460

Step-by-step explanation:

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Significance level : \alpha=1-0.90=0.1

Using the t-distribution table ,

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Then, we have

ME=( 1.7396)\dfrac{6}{\sqrt{18}}\approx2.460

Hence, the margin of error (ME) of the confidence interval with a 90% confidence level = 2.460

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25= 1.50x+4
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