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Mrac [35]
2 years ago
9

Explain why the equation 6|x| + 25 = 15 has no solution. When one solves, they arrive at a step where |x| is equal to a negative

number. Since | x| can never be negative, there is no solution. When one solves, they arrive at a step where x is equal to a negative number. Since x can never be negative inside of the absolute value bars, there is no solution. The statement is false. There is a solution. When one solves, they arrive at a step where |x| is equal to a fraction that may not be represented as an integer. Since | x| must be an integer, there is no solution.
Mathematics
1 answer:
lianna [129]2 years ago
4 0

Answer:

Step-by-step explanation:

6|x| + 25 = 15

6|x| = 15 - 25

6|x| = -10

|x| = - \frac{10}{6}

By definition, the absolute value of any number must be positive, hence  | x| can never be negative, there is no solution.

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gladu [14]

Answer: If X = 5, z=<u>-3</u>

If X = 37, z= <u>3.4</u>

Step-by-step explanation:

We know that the formula to find the z-score for any random variable x is given by :-

z=\dfrac{x-\mu}{\sigma}

, where \mu = Population mean

\sigma = Population standard deviation.

As per given , we have

\mu=20\\\\\sigma=5

Then , the z-score for x =5

z=\dfrac{5-20}{5}=\dfrac{-15}{5}=-3

i.e. If X = 5, z=<u>-3</u>

When x =37,then z=\dfrac{37-20}{5}=\dfrac{17}{5}=3.4

i.e. If X = 37, z= <u>3.4</u>

7 0
2 years ago
Which function in vertex form is equivalent to f(x) = x2 + 8 – 16x?
damaskus [11]

Answer:

f(x)= (x+8)^2 + 200

Step-by-step explanation:

-b/2a gives you the x coordinate of the vertex and then plug it in for x to get the y coordinate. Put it in the formula (f()x= (x-h)^2 +k).

H is the x coordinate and K is the y coordinate

6 0
3 years ago
The sum of three consecutive even numbers is 582. What is the 1st number?
Snezhnost [94]

Answer:

d

Step-by-step explanation:

y

4 0
3 years ago
What is the value of 4b ÷ 3, if b =3
Mice21 [21]
The value is 4 because 4b is also 4 times three which is twelve then you divide 12  by three and get 4

7 0
2 years ago
I need to know the answer please help me
True [87]

Answer:

F: 12r+y

Step-by-step explanation:

- Why not G because if you multiple 2 by 6 and you get 12 then why not multiple the 6 too.

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- Why not J because you don't add 2 pulse 6 to make 8 when you are supposes to multiple.

Hope this helps and sorry if wrong :)

8 0
3 years ago
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