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
tresset_1 [31]
3 years ago
7

The points (2,1) and (3,r) fall on a line with a slope of - 5. What is the value of r?

Mathematics
1 answer:
Paladinen [302]3 years ago
5 0
R=-4
desmos is a good app to check out these priblems (i do it all the time)
You might be interested in
Which pair of points have a slope of -3/5?
Allushta [10]

Answer:

No of these answers has a slope of  \frac{-3}{5} . My guess is B becasue its close to \frac{-3}{5} unless the 5 is supposed to be negative

Step-by-step explanation:

You have to use the slope formula \frac{y_{2} - y_{1} }{x_{2} - x_{1} }

(x_{1},y_{1}), (x_{2},y_{2})

(4, 0), (-2, 10)   \frac{10 - 0 }{-2 - 4 }= \frac{10}{6} you have to simplfy, the answer will be \frac{5}{3}

(10, -2), (0, 4)  \frac{4 - -2 }{0- 10 }= \frac{6}{-10} you have to simplfy, the answer will be \frac{3}{-5}

 (4, 2), (10, 4)  \frac{4 - 2 }{10 - 4 }= \frac{2}{6} you have to simplfy, the answer will be \frac{1}{3}

 (-4, -10),(0, -2) \frac{{-2- -10} }{0 - -4 }= \frac{8}{4} you have to simplfy, the answer will be \frac{2}{1} =2

5 0
3 years ago
Which two equations would be most appropriately solved by using the zero product property? Select each correct answer.
LekaFEV [45]
The zero product property tells us that if the product of two or more factors is zero, then each one of these factors CAN be zero.

For more context let's look at the first equation in the problem that we can apply this to: (x-3)(x+4)=0

Through zero property we know that the factor (x-3) can be equal to zero as well as (x+4). This is because, even if only one of them is zero, the product will immediately be zero.

The zero product property is best applied to factorable quadratic equations in this case.

Another factorable equation would be 2x^{2}+6x=0 since we can factor out 2x and end up with 2x(x+3)=0. Now we'll end up with two factors, 2x and (x+3), which we can apply the zero product property to.

The rest of the options are not factorable thus the zero product property won't apply to them.
3 0
4 years ago
Read 2 more answers
A newspaper stand sold 1000 copies of the city newspaper for $1600. Write and solve an equation to find the price of one copy.
Goshia [24]
Simple. just do this:
1000x=1600
x=1600÷1000
x=1.6

each newspaper is $1.60
8 0
4 years ago
Read 2 more answers
1. Simplify the expression below.<br> 2(x + 2) + 3(-x-7) -5 ( 2x - 4)
MrMuchimi

Answer: -11x+15

Step-by-step explanation: distributed property: 2x+2-3x-7-10x+20, -11x+15

5 0
3 years ago
12x-4+17x+8 i do not know how to do this
victus00 [196]

Answer:

29x+8 is the answer

Step-by-step explanation:

12x-4+17x+8

=12x+17x-4+8

=29x+8

Hope it will help ^_^

7 0
3 years ago
Other questions:
  • Yesterday, Chau had m baseball cards. Today, he gave 5 away. Using m , write an expression for the number of cards Chau has left
    7·1 answer
  • Parallel lines s and t are cut by a transversal r.
    13·2 answers
  • Maya decided to paint some of the rooms in her hotel. She found out that a room required 32 cans of paint. If Maya buys 9 cans o
    15·1 answer
  • Jane brought 10 pencils for $5.50 and Wayne brought 26 pencils for $12 .20. using the unit rate, determine who got the better de
    10·1 answer
  • SOMEONE PLEASE HELP ME ASAP PLEASE!!​
    6·1 answer
  • Subtract: (-14z^2+1)-(-13z^2)
    9·2 answers
  • Determine the zeros of the function f(x)= 3x^2-7x 1
    14·1 answer
  • Henry's dinner bill is $132 the sales tax of 10% he lives at it of 15% how much will I pay in tax how much does it pay in tip wh
    8·1 answer
  • There is a bag filled with 5 blue and 4 red marbles.
    15·1 answer
  • What are the x and y-intercepts of the line described by the equation?
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!