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
kupik [55]
3 years ago
7

Help me!!!! Pleaseeee

Mathematics
1 answer:
mariarad [96]3 years ago
4 0

Step-by-step explanation:

<u>Y2 - Y1</u>

X2 - X1

<u>3 - 1</u>

2 - 1  

= 2

y - Y1 = m (x - X1)

y - 1 = 2(x - 1) --- IN POINT SLOPE FORM

y - 1 = 2x - 2

 + 1          + 1

y = 2x - 1 --- IN SLOPE INTERCEPT FORM


QUESTION 12:

Slope intercept form -

  • y = mx + b
  • m represents the slope
  • b represents the y - intercept AKA the starting point
  • When the slope is negative, you go down
  • When the slope is positive, you go up

ABOUT PROBLEM:

  • Since the slope is negative, you go down 4, right 3, but start from the 2 then start doing the slope
  • You have to put 2 on the y - line because it's the y - intercept AKA starting point

y = -4/3x + 2


You might be interested in
HELP PLEASE LOOK AT PICTURE
solniwko [45]

Answer:

It decreases.

Step-by-step explanation:

10 / d

Lets say that it was 10 / 40, which is 10 divided by 40, 0.25.

Now, it has increased to twice the amount of that.

1 / 80, 10 divided by 80, which is 0.125

So, it decreases.

4 0
3 years ago
Read 2 more answers
If you get this right i will give a brainlest
VARVARA [1.3K]

Answer:

B

Step-by-step explanation:

Because the rest are wrong. It is just asking you to compare the numbers. choice B says that Group 1/A needs 6 more lessons than Group 12/B

4 0
3 years ago
An ammunition producer claims his best product has an average lifespan of exactly 18 years. A skeptical product evaluator asks f
DochEvi [55]

Answer:

The 90% confidence interval for the true mean lifespan of this product is between 13.1 and 16.9 years.

Step-by-step explanation:

We have the standard deviation for the sample, which means that the t-distribution is used to solve this question.

The first step to solve this problem is finding how many degrees of freedom, we have. This is the sample size subtracted by 1. So

df = 50 - 1 = 49

90% confidence interval

Now, we have to find a value of T, which is found looking at the t table, with 49 degrees of freedom(y-axis) and a confidence level of 1 - \frac{1 - 0.9}{2} = 0.95. So we have T = 1.6766

The margin of error is:

M = T\frac{s}{\sqrt{n}} = 1.6766\frac{8}{\sqrt{50}} = 1.9

In which s is the standard deviation of the sample and n is the size of the sample.

The lower end of the interval is the sample mean subtracted by M. So it is 15 - 1.9 = 13.1 years

The upper end of the interval is the sample mean added to M. So it is 15 + 1.9 = 16.9 years

The 90% confidence interval for the true mean lifespan of this product is between 13.1 and 16.9 years.

8 0
2 years ago
Zane is putting the strings on 555 harps. Each harp has 484848 strings.
Murljashka [212]
576577 is the right answer and the right to
4 0
2 years ago
Sin^2(20°)+cos^2(20°)=
inessss [21]

Answer:

1

Step-by-step explanation:

There is an important trig identity which you must know:  (sin x)^2 + (cos x)^2 = 1.  

Therefore, sin^2(20°)+cos^2(20°) = 1

5 0
3 years ago
Other questions:
  • How does substitution help you to solve systems of equations?
    14·1 answer
  • Which of the following is the horizontal asymptote for the graph below?
    15·2 answers
  • How do you solve this multi-step equation involving natural logarithms? <br><br> ln(x-3)-ln5=1
    10·1 answer
  • Kall is single and earns $45,800 per year. what is her annual federal withholding?
    5·1 answer
  • The box plot below shows attendance at a local movie theater in high school basketball games which of the following best describ
    13·1 answer
  • Which problem can be solved by performing this multiplication? 23×35 Matthew is caring for 3 dogs. Two of the dogs each ate 35 c
    10·1 answer
  • I ENTERED 22 POINTS!! EXTREAMLY EASY I AM JUST AFRAID TO GET THIS WRONG SO IF YOU COULD TAKE A MINUTE AND HAVE SOME PITY FOR ME
    7·1 answer
  • Help me find <br> the y-intercept <br> The slope <br> The equation of the line<br> Please
    6·2 answers
  • What is the area of the trapezoid?
    10·1 answer
  • When two parallel lines are intersected by a transversal, alternate exterior angles are?
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!