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
Sindrei [870]
3 years ago
7

9 to 2

Mathematics
1 answer:
Arlecino [84]3 years ago
5 0

<u>Answer:</u>

\frac { 4 } { 5 }

<u>Step-by-step explanation:</u>

We are given the following two points and we are to find the slope of the line which passes through these points:

(3.-1) and (-2,-5)

The formula of the slope is given by:

Slope = \frac { y _ 2 - y _ 1 } { x _ 2 - x _ 1 }

Substituting the given coordinates in the above formula:

Slope = \frac { - 5 - ( - 1 ) } { - 2 - 3 } = \frac { 4 } { 5 }

You might be interested in
4. Elena noticed that, nine years ago, her cousin Katie was twice as old as Elena was then,
kakasveta [241]

Answer:

k - 2e + 9 = 0

k - e - 4 = 0

Step-by-step explanation:

Given that Elena is currently e years  old and Katie is k years old. Now, nine years ago, Katie was twice as old as Elena was.

So, k - 9 = 2(e - 9)

⇒ k - 2e + 9 = 0 .............. (1)

And, in four years, Elena will be as old as Katie is now.

So, k = e + 4

⇒ k - e - 4 = 0 ............... (2)

Therefore, the equations (1) and (2) matches the conditions. (Answer)

4 0
3 years ago
The housing market has recovered slowly from the economic crisis of 2008.​ Recently, in one large​ community, realtors randomly
Gwar [14]

Answer:

Step-by-step explanation:

Given that the housing market has recovered slowly from the economic crisis of 2008.​ Recently, in one large​ community, realtors randomly sampled 38 bids from potential buyers to estimate the average loss in home value.

s = sample std deviation = 3000

Sample mean = 9379

Sample size n = 38

df = 37

Std error of sample mean = \frac{s}{\sqrt{n} } \\=486.66

confidence interval 95% = Mean ± t critical * std error

=Mean ±1.687*486.66 = Mean ±821.003

=(8557.997, 10200.003)

a) If std deviation changes to 9000 instead of 3000, margin of error becomes 3 times

Hence 2463.008

b) The more the std deviation the more the width of confidence interval.

3 0
3 years ago
Plz help me i need help
lina2011 [118]
I believe it's B because we don't know how big the jar is and it's asking for. a statistical question.
6 0
3 years ago
Read 2 more answers
Why are halves a good choice for benchmark fractions for 1 1/3
Natalka [10]

Answer and explanation:

Benchmark fractions are fractions that are used as references in measuring other fractions. They are easily estimated and so can be used in measuring more "specific" fractions such as 1/5, 7/9, 3/7, 1/3 etc. If I wanted to measure 1 1/3cm for instance using a calibrated ruler, having centimeter measurements, I would first find 1cm on the ruler and then find half of one centimeter. Seeing that half is bigger than 1/3 but close, I could then estimate 1/3 to be somewhere less than 1/2 but a bit close to it

3 0
3 years ago
What is the slope of the line​
lidiya [134]

Answer:

c is the correct answer

Step-by-step explanation:

because i worked it out

8 0
3 years ago
Read 2 more answers
Other questions:
  • Based on the figure below, what is the value of x?<br><br><br> 5<br><br> 7<br><br> 11<br><br> 15
    10·2 answers
  • Asap pls help and explain
    8·1 answer
  • Help plzzzz ............
    10·1 answer
  • Suppose that c (x )equals 2 x cubed minus 12 x squared plus 23 comma 000 x is the cost of manufacturing x items. Find a producti
    9·1 answer
  • Colton earns $7 per hour plus $1.50 for each pizza delivery. The expression 7h+1.50d can be used to find the total earnings afte
    5·1 answer
  • I need answers please ;-; i HATE MAAAAAAAAAAAAAAAATH
    12·2 answers
  • How many decimal places does an irrational number have?
    9·1 answer
  • Please help me!!! It's due in a hour and I have a lot on my plate!!
    9·2 answers
  • This graph shows linear
    5·1 answer
  • What is the completely factored form of x2 – 16xy 64y2? xy(x – 16 64y) xy(x 16 64y) (x – 8y)(x – 8y) (x 8y)(x 8y)
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!