MATHEMATICS HIGH SCHOOL

Solve for all values of x by factoring.
x^2-6x+20=6x

Answers

Answer 1
Answer:

Answer:

x=10 or x=2

Step-by-step explanation:

msg me if ya need step

<3, Red

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25 + 8(2 + 3) Step 1 = 25 + 8 + 2 + 8 + 3 Explain the mistake Mrs. Garcia made in the first step. 2. See answers.2 answers

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36 votes:
What are the answer choices? Step one should be addition in parenthesis, 2+6, which will give ...

Answers

Answer:

Step 1 should look like this:

25 + 8 × 2 + 8 × 3

Step-by-step explanation:

25 + 8(2 + 3)

Step 1: 25 + 8 + 2 + 8 + 3

The mistake is that the 8 multiplies both numbers in parentheses.

Step 1 should look like this:

25 + 8 × 2 + 8 × 3

Evaluate log (base 9) 27. Can someone explain this one for me so i could do some tasks on my own?

Answers

log_927=log_93^3=3log_93=3log_9\sqrt9=3log_99^(1)/(2)\n\n=(1)/(2)\cdot3log_99=(3)/(2)
You would use some properties of the logarithm. First, log_927=log_(3^2)27=(1)/(2)log_327. So, now you have log_327 to calculate. It's log_33^3=3, so the final result is (1)/(2)*3=(3)/(2)
Hope it helps.

What is the value of x in the equation 4(2x + 14) = 0? a 9 b 7 c −7 d −9

Answers

Answer:

x = -7

Step-by-step explanation:

4(2x + 14) = 0

Divide each side by 4

2x+14 = 0

Subtract 14 from each side

2x+14-14 = 0-14

2x= -14

Divide each side by 2

2x/2 = -14/2

x = -7

Answer:

C, -7

Step-by-step explanation:

Use distributive property to get: 8x +56 = 0

Isolate x to get: 8x = -56

Then divide each side by 8: x= -7

The answer is C

If k is non zero digit for which base of k is the sum, 1+kk=100 true?

Answers

no, i don't think it's true

Hey can anyone help I'm so confused on how to this :)

Answers

I believe that it is 576 inches cubed. You would do length x width x height and get 576.

PLEASE HELP !The graph shows the ages of different concertgoers who have backstage passes.

Which statement is true about the graph?

A) A late arrival who is 21 years old with a back-stage pass will make the mean greater than the median.
B) The two holders of back-stage passes whose ages are above 40 make the mean age higher than the median age.
C) The ages of concert-goers with backstage passes are skewed left, so the mean age is less than the median age.
D) A concert-goer who is 18 years old and wins a back-stage pass will pull the mean more than 2 years less than the median.

Answers

In the given graph, we calculate the mean by dividing the product of the midpoint of each age interval and the frequency by the total frequency. Mean = [13.5(3) + 16.5(6) + 19.5(8) + 22.5(6) + 25.5(5) + 28.5(4) + 31.5(3) + 43.5 + 46.5] / (3 + 6 + 8 + 6 + 5 + 4 + 3 + 1 + 1) = 856.5 / 37 = 23.15 The median is given by the middle age interval (i.e. the age interval which falls in the (37 + 1) / 2 = 38 / 2 = 19th position) which is the 21 - 24 age inteval. To get the value of the median we use the formular Median = L1 + C[n/2 - summation (Fl)] / Fm where: L1 is the lower class boundary of the median class, C is the class size, n is the total frequency, summation (Fl) is the summation of all frequencies below the mediam class and Fm is the median class frequency. Median = 21 + 4[37/2 - (3 + 6 + 8)] / 6 = 21 + 4[18.5 - 17] / 6 = 21 + 4(1.5) / 6 = 21 + 6 / 6 = 21 + 1 = 22. Thus the mean of 23.15 is greater than the median of 22. Calculating the mean without the two numbers above 40 gives Mean = (856.5 - 43.5 - 46.5) / 35 = 766.5 / 35 = 21.9 Therefore, the statement that is true about the graph is "The two holders of back-stage passes whose ages are above 40 make the mean age higher than the median age." (option B)

The two holders of back-stage passes whose ages are above 40 making the mean age higher than the median age is correct about the graph.

What is a Graph?

This can be defined as pictorial representation of data or values in an organized manner.

From the graph we can calculate mean.

Mean = [13.5(3) + 16.5(6) + 19.5(8) + 22.5(6) + 25.5(5) + 28.5(4) + 31.5(3) + 43.5 + 46.5] / (3 + 6 + 8 + 6 + 5 + 4 + 3 + 1 + 1)

= 856.5 / 37

= 23.15

Median = (37 + 1) / 2 = 38 / 2 = 19th position between 21 - 24 age interval. Median = L1 + C[n/2 - summation (Fl)] / Fm

where L1 = lower class boundary of the median class, C = class size, n = total frequency, summation (Fl) = summation of all frequencies below median class, Fm= median class frequency.

Median = 21 + 4[37/2 - (3 + 6 + 8)] / 6

= 21 + 4[18.5 - 17] / 6

= 21 + 4(1.5) / 6

= 21 + 6 / 6 = 21 + 1 = 22.

Mean of 23.15 is greater than the median of 22.

Mean without two numbers above 40

= (856.5 - 43.5 - 46.5) / 35 = 766.5 / 35 = 21.9.

Therefore the  two holders of back-stage passes whose ages are above 40 make the mean age higher than the median age which makes option B the most appropriate choice

Read more about Graph here brainly.com/question/25184007
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