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Flura [38]
2 years ago
6

What is 5( x - 3 ) = 5x - 15?

Mathematics
2 answers:
Volgvan2 years ago
6 0

\tt5( x - 3 ) = 5x - 15 \\  \tt5x - 15 = 5x - 15 \\ \tt5x - 5x =  - 15 + 15 \\ \tt\bcancel{5x} - \bcancel{5x} =  \bcancel{- 15} + \bcancel{15} \\ \boxed{\tt0 = 0}

  • The answer is <u>0</u><u>.</u>
  • LHS = RHS, hence verified.

<u>Value of x (substitute 0 in the place of x).</u>

\tt5( (0) - 3 ) = 5(0) - 15 \\  \tt0 - 15 = 0 - 15 \\  \tt \boxed{\tt -15 = -15}

  • So, value of x is <u>0</u><u>.</u>
7nadin3 [17]2 years ago
6 0

Answer:

<h2>Please click above answer.</h2>

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How can you use the point-slope form of a line when only given two points?
pshichka [43]

Answer:

See below

Step-by-step explanation:

<u>Point -slope form is:</u>

  • y - y1 = m(x - x1)

By having one set of coordinates and knowing the value of the slope (m in the equation) you can use the form.

<u>How to find the slope?</u>

Here you need 2 points: Point 1 with coordinates x1, y1 and point 2 with the coordinates x2, y2

<u>Use the formula:</u>

  • m = (y2-y1)/(x2-x1)

<u>Example:</u>

  • m = -5, and one of the points has coordinates (9, 2) then point-slope form is:
  • y - 2 = -5(x - 9)
3 0
3 years ago
Help and show work that will make my day ❤️
kolezko [41]
H equals 30 because 3 times 6 is 18 so 5 times 6 is 30
7 0
3 years ago
Suppose that replacement times for washing machines are normally distributed with a mean of 9.4 years and a standard deviation o
Nezavi [6.7K]

Using the normal distribution, it is found that the replacement time that separates the top 18% from the bottom 82% is of 11.23 years.

<h3>Normal Probability Distribution</h3>

The z-score of a measure X of a normally distributed variable with mean \mu and standard deviation \sigma is given by:

Z = \frac{X - \mu}{\sigma}

  • The z-score measures how many standard deviations the measure is above or below the mean.
  • Looking at the z-score table, the p-value associated with this z-score is found, which is the percentile of X.

In this problem, the mean and the standard deviation are, respectively, given by \mu = 9.4, \sigma = 2.

The desired value is the 82nd percentile, which is X when Z = 0.915, hence:

Z = \frac{X - \mu}{\sigma}

0.915 = \frac{X - 9.4}{2}

X - 9.4 = 0.915(2)

X = 11.23

The replacement time that separates the top 18% from the bottom 82% is of 11.23 years.

More can be learned about the normal distribution at brainly.com/question/24663213

6 0
2 years ago
Y = -63 y = 8x + 6<br>Use Substitution to solve​
allochka39001 [22]

9514 1404 393

Answer:

  (x, y) = (-8.625, -63)

Step-by-step explanation:

Substitute for y.

  -63 = 8x +6

  -69 = 8x . . . . . subtract 6

  -69/8 = x = -8.625

The solution is (x, y) = (-8.625, -63).

7 0
3 years ago
PLZ HELP FAST I NEED IT RN
Alexxandr [17]

Answer:

16 units

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
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