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Irina18 [472]
3 years ago
12

(PLEASE HELP ME) A line passes through the points (-3,-1)

Mathematics
1 answer:
Lyrx [107]3 years ago
4 0

Answer:

-5/2

Step-by-step explanation:

to find the slope of the line, you have to do y1 - y2, over x1 - x2. That means that you do -5/2, and so that is the answer

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In your own words, explain the place-value relationship when the same two digits are next to each other in a multi-digit number.
marusya05 [52]
<span> It is easy the left side as to be ten times greater then your right side for example my ones place is ten times greater my tens place is ten times greater than my hundreds place and my hundreds place is ten times greater than my thousands place i hope this will help you bye </span>
6 0
3 years ago
Help with 8 and 9??? Please help me out! Correct answers please
Ipatiy [6.2K]

Answer:

  8.  (-∞, 0) ∪ (0, 1/3) ∪ (1/3, ∞)

  9.  f(g(x)) = 4x/(1+6x)

Step-by-step explanation:

8. For f(g(x)) to be defined, g(x) must be defined and f(g(x)) must be defined.

g(x) will be defined for all x≠0. f(g(x)) will be defined for g(x)≠4. Solving g(x)=4, we find the value of x is 1/3. (The answer choices give a clue.)

So, the domain of f(g(x)) is all x that is not 0 or 1/3. Only one answer choice makes those particular exclusions:

  (-∞, 0) ∪ (0, 1/3) ∪ (1/3, ∞)

__

9. Substituting the definition of g(x) into the expression for f(x), we get ...

\displaystyle (f\circ g)(x)=f(g(x))=\frac{2}{g(x)+3}=\frac{2}{\frac{1}{2x}+3}\\\\=\frac{2}{\left(\frac{1+6x}{2x}\right)}\\\\(f\circ g)(x)=\frac{4x}{1+6x}

4 0
3 years ago
Given the set of numbers (3, 5, 7, 11, 23), what number must be added to the set so that the median of the 6 numbers is 9? what
Gennadij [26K]
Easy

median is the number in the middle when they are arranged in increasing numerical order
example
1,2,3
median is 2 becaus it is in middle
1,4,6,7,8
6 is median

if you have an even amount then average the middle two
1,3,5,7
median is the mean of 3 and 5 which is 4

so

3,5,7,11,23
median is 7 right now
there are an odd amout of numbers
adding 1 will result in even
to find the median of even set of numbers, average the 2 middle ones
right now 7 is center
the mean of 5 and 7 is 6
the mean of 7 and 11 is 9
we want a mean of 9
so add any  number greater than or equal to 11
3,5,7,11,12,23 is one option
3,5,7,11,23,50 is another



mean is 9
mean is the average of them
x is the number to be added
6 numbers will be the set since there are 5 now and adding 1 will get 6
(3+5+7+11+23+x)/6=9
(49+x)/6=9
times both sides by 6
49+x=54
minus 49 both sides
x=5

the number added must be 5



to make the median of the 6 numbers 9, add any number greater than or equal to 11, such as 12 or 234

to make the mean 9, add 5 to the set
7 0
3 years ago
The area of a square lawn is 169 yd2. What is the length of each side of the lawn?
tekilochka [14]

Answer:

  13 yd

Step-by-step explanation:

The area of a square is the square of the side length, so the side length is the square root of the area.

  s = √(169 yd²) = 13 yd

6 0
3 years ago
A bag contains 10 marbles: 6 are green, 2 are red, and 2 are blue. Omar chooses a marble at random, and without putting it back,
Musya8 [376]
11 out of 20 Would be the answer.
6 0
2 years ago
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