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zaharov [31]
3 years ago
14

Choose the correct simplification of the expression (2x-6)(3x^2-3x-6)

Mathematics
1 answer:
timama [110]3 years ago
4 0

Answer:

A.  6x^3 - 24x^2 + 6x + 36.

Step-by-step explanation:

(2x - 6)(3x^2 - 3x - 6)

= 2x(3x^2 - 3x - 6) - 6(3x^2-3x-6)

=  6x^3 - 6x^2 - 12x - 18x^2 + 18x + 36

Simplifying like terms:

=  6x^3 - 24x^2 + 6x + 36 (answer).

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Describe how the graph is related to the graph of y = lxl.
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Answer:

Vertical shift down 4 units

Step-by-step explanation:

Vertical shift down 4 units

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What is X-y=-1 written in y=mx+b form?
exis [7]

Answer:

y = x + 1

Step-by-step explanation:

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3 years ago
Sharon bought a mixture of nuts that was made up of pecans, walnuts and cashews in a ratio by weight of $2:3:1$, respectively. I
DanielleElmas [232]

Answer:4.5

Step-by-step explanation:

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3 years ago
How can I get help with linear equations with fractions? I dont remember how to solve​
xz_007 [3.2K]

Answer:

to find the missing number, compare both sides of the equation. If the variable terms are the same and the constant terms are different, then the equation has no solutions.

Step-by-step explanation:

to find the missing number, compare both sides of the equation. If the variable terms are the same and the constant terms are different, then the equation has no solutions.

3 0
3 years ago
Records on a fleet of trucks reveal that the average life of a set of spark plugs is normally distributed with a mean of 22,100
fgiga [73]

Answer:

There no sufficient evidence to support the manufactures claim at the 0.05 level

Step-by-step explanation:

From the question we are told that

   The  mean is  \mu  =  22100 \ miles

    The  sample mean is \= x  =  23400 \ miles

   The  sample size is  n  = 18

   The standard deviation is \sigma  =  1 500 miles

    The test statistics is  t = 3.677

    The level of significance is \alpha  =  0.05

The null hypothesis  is  H_o :  \mu =  22100

The  alternative hypothesis  is  H_a :  \mu  \ne 22100

Generally the p-value  is mathematically represented as

     p-value  =  2 *  P(t >3.677 )

From the z-table  P(t >3.677 )  =  0.000118

So

    p-value  =  2 *  0.000118

=> p-value  =  0.000236

From he value given and obtained we see that  p-value  <  \alpha

Hence we reject the null hypothesis

Hence there no sufficient evidence to support the manufactures claim

8 0
3 years ago
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