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
PtichkaEL [24]
2 years ago
13

Is it just me? or does tutoring never work anymore :/ ​

Mathematics
1 answer:
Ghella [55]2 years ago
6 0

Answer:

Its not you, that's for sure.

You might be interested in
Please help me please
Masja [62]
What do you need help with
3 0
3 years ago
ANSWER THIS PLEASE!
Minchanka [31]

Answer:

can't see question

Step-by-step explanation:

IDK

4 0
3 years ago
Question 14
Reil [10]

Answer:

The system of equations has a one unique solution

Step-by-step explanation:

To quickly determine the number of solutions of a linear system of equations, we need to express each of the equations in slope-intercept form, so we can compare their slopes, and decide:

1) if they intersect at a unique point (when the slopes are different) thus giving a one solution, or

2) if the slopes have the exact  same value giving parallel lines (with no intersections, and the y-intercept is different so there is no solution), or

3) if there is an infinite number of solutions (both lines are exactly the same, that is same slope and same y-intercept)

So we write them in slope -intercept form:

First equation:

6x+y=-1\\y=-6x-1

second equation:

-6x-4y=4\\-6x=4y+4\\-6x-4=4y\\y=-\frac{3}{2} x-1

So we see that their slopes are different (for the first one slope = -6, and for the second one slope= -3/2) and then the lines must intercept in a one unique point. Therefore the system of equations has a one unique solution.

6 0
3 years ago
Which of the following are roots of the following polynomial x^3-11x^2+33x+45
Mandarinka [93]
For x^3-11x^2+33x+45 , we can make it an equation so <span>x^3-11x^2+33x+45=0. Next, we can find out if -1 or -3 is a factor. If -1 is a factor, than (x+1) is factorable. Using synthetic division, we get 

      x^2-12x+45
       ___ ________________________
x+1 | x^3-11x^2+33x+45

      - (x^3+x^2)
       _________________________
            -12x^2+33x+45
          - (-12x^2-12x)
          ______________
            45x+45
         -(45x+45)
___________
0


Since that works, it's either B or D. We just have to figure out when
</span> x^2-12x+45 equals 0, since there are 3 roots and we already found one. Using the quadratic formula, we end up getting (12+-sqrt(144-180))/2=
(12+-sqrt (-36))/2. Since sqrt(-36) is 6i, and 6i/2=3i, it's pretty clear that B is our answer
8 0
3 years ago
Keith purchases a cell phone plan, which includes a cell phone and cell phone
Damm [24]

Answer:

640

Step-by-step explanation:

Rate?

3 0
3 years ago
Other questions:
  • 3x+ 2y= 4 solving for x
    15·2 answers
  • CAN I PLEASE GET HELP ON THIS ASAP!!
    14·1 answer
  • A ball is thrown upward from the top of a building. The function below shows the height of the ball in relation to sea level, f(
    8·1 answer
  • What happens to the minimum point of f(x) = x2 + 5x + 2, when it is changed to f(x) = 5x2 + 5x + 2?
    10·1 answer
  • If Catherine traveled 1,800 miles in 6 hours on her plane flight to her vacation destination, how fast was the plane traveling?​
    8·2 answers
  • If (2,0) is a solution of the linear equation 2x+3y=k,then the value of k is​
    12·2 answers
  • What is the Celsius temperature for 144 degrees Kelvin
    13·2 answers
  • Which expression is not equivalent to Negative 3 x minus one-half 4 y? 2 y minus 5 x minus one-half 2 y 2 x Negative 2 x minus o
    11·2 answers
  • 1. If the measure of angle D=162º and
    14·1 answer
  • Which of these can help you visualize data? Select all that apply.
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!