1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Ad libitum [116K]
3 years ago
7

Find the value of x so that the line passing through (-2, 7) and (x, 2) has a slope of -1/3

Mathematics
1 answer:
Solnce55 [7]3 years ago
3 0
Slope between (x1,y1) and (x2,y2) is (y2-y1)/(x2-x1)
we are given the points (-2,7) and (x,2)
slope is -1/3
so
(x,y)
(-2,7) and (x,2)
x1=-2
y1=7
x2=x
y2=2

slope=(2-7)/(x-(-2))=-1/3
slope=(-5)/(x+2)=-1/3
multiply both sides by (-3)(x+2) (basically cross multiply)
15=x+2
minus 2 both sides
13=x
x=13
the value of x is 13
You might be interested in
Brenda has $30. She gets $5 every time she takes out the trash. Which inequality can be used to find x, the number of times Bren
kobusy [5.1K]

Brenda has to take out the trash more than 4 times to have more than $50.

Step-by-step explanation:

Given,

Amount Brenda already have = $30

Amount she gets each time for throwing trash = $5

Amount she wants to have = More than $50

Let,

x be the number of times she throws trash.

Amount for throwing trash * Number of times trash thrown + Amount already have > Amount she wants to have

5*x+30>50\\5x>50-30\\5x>20

Dividing both sides by 5

\frac{5x}{5}>\frac{20}{5}\\x>4

Brenda has to take out the trash more than 4 times to have more than $50.

Keywords: variable, inequality

Learn more about variables at:

  • brainly.com/question/9969022
  • brainly.com/question/9801816

#LearnwithBrainly

4 0
3 years ago
Hope someone can help me with this
AVprozaik [17]

Area of a Circle = PI * radius^2

= 3.14 * 1.8^2

= 3.14 * 3.24

= 10.17 meters^2


3 0
3 years ago
Jace invested $380 in an account paying an interest rate of 6.2% compounded continuously. Assuming no deposits or withdrawals ar
SOVA2 [1]

Answer: 960

Step-by-step explanation:

5 0
3 years ago
Question 2 of 5
AlekseyPX

Given:

The different recursive formulae.

To find:

The explicit formulae for the given recursive formulae.

Solution:

The recursive formula of an arithmetic sequence is f(n)=f(n-1)+d, f(1)=a,n\geq 2 and the explicit formula is f(n)=a+(n-1)d, where a is the first term and d is the common difference.

The recursive formula of a geometric sequence is f(n)=rf(n-1), f(1)=a,n\geq 2 and the explicit formula is f(n)=ar^{n-1}, where a is the first term and r is the common ratio.

The first recursive formula is:

f(1)=5

f(n)=f(n-1)+5 for n\geq 2.

It is the recursive formula of an arithmetic sequence with first term 5 and common difference 5. So, the explicit formula for this recursive formula is:

f(n)=5+(n-1)(5)

f(n)=5+5(n-1)

Therefore, the correct option is A, i.e., f(n)=5+5(n-1).

The second recursive formula is:

f(1)=5

f(n)=3f(n-1) for n\geq 2.

It is the recursive formula of a geometric sequence with first term 5 and common ratio 3. So, the explicit formula for this recursive formula is:

f(n)=5(3)^{n-1}

Therefore, the correct option is F, i.e., f(n)=5(3)^{n-1}.

The third recursive formula is:

f(1)=5

f(n)=f(n-1)+3 for n\geq 2.

It is the recursive formula of an arithmetic sequence with first term 5 and common difference 3. So, the explicit formula for this recursive formula is:

f(n)=5+(n-1)(3)

f(n)=5+3(n-1)

Therefore, the correct option is D, i.e., f(n)=5+3(n-1).

6 0
3 years ago
Read 2 more answers
6) Given the midpoint of segment KL ISM endpoint K ? (1, - 1)(8, - 7) . What are the coordinates of the other
Rudik [331]

Answer:

Step-by-step explanation:

Fitgsnmcdj agbshxtxi gxfhv

3 0
3 years ago
Other questions:
  • PLZ HELP MEEEEE!!!!! IN TEST
    15·2 answers
  • Why are they not equal? Please explain!!
    8·2 answers
  • Is the simplest from to 73/365, 1? Because thats is the only number that will divide evenly into 73.
    11·1 answer
  • A box contains 6 red balls, 7 green balls and 5 blue balls. each ball is of different size. the probability that the red ball se
    12·1 answer
  • Find the value of each variable.<br> 1. X<br> =
    5·1 answer
  • When 8 is subtracted from a certain number and the result is multoplied by 3
    14·2 answers
  • URGENT PLEASE HELP. IXL IS TOUGH
    10·1 answer
  • Given: 4n^2 + 25 = -20x, what is the value of the discriminant?
    6·1 answer
  • Anthony is 154 cm tall, his brother Gerry is 5/7 as tall as him. How tall is Gerry?
    6·1 answer
  • 0.8 -0.50 3 with solution​
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!