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
densk [106]
3 years ago
8

Complete the point slope equation of the line through (-5,7) (-4,0)​

Mathematics
1 answer:
icang [17]3 years ago
8 0

Answer:

y-7= -7(x+5)

Step-by-step explanation:

You might be interested in
According to the Vivino website, suppose the mean price for a bottle of red wine that scores 4.0 or higher on the Vivino Rating
Natali [406]

Answer:

a) Null and alternative hypothesis

H_0: \mu=32.48\\\\H_a:\mu< 32.48

b) Test statistic t=-1.565

P-value = 0.0612

NOTE: the sample size is n=65.

c) Do not reject H0. We cannot conclude that the price in Providence for a bottle of red wine that scores 4.0 or higher on the Vivino Rating System is less than the population mean of $32.48.

d) Null and alternative hypothesis

H_0: \mu=32.48\\\\H_a:\mu< 32.48

Test statistic t=-1.565

Critical value tc=-1.669

t>tc --> Do not reject H0

Do not reject H0. We cannot conclude that the price in Providence for a bottle of red wine that scores 4.0 or higher on the Vivino Rating System is less than the population mean of $32.48.

Step-by-step explanation:

This is a hypothesis test for the population mean.

The claim is that the mean price in Providence for a bottle of red wine that scores 4.0 or higher on the Vivino Rating System is less than the population mean of $32.48.

Then, the null and alternative hypothesis are:

H_0: \mu=32.48\\\\H_a:\mu< 32.48

The significance level is 0.05.

The sample has a size n=65.

The sample mean is M=30.15.

As the standard deviation of the population is not known, we estimate it with the sample standard deviation, that has a value of s=12.

The estimated standard error of the mean is computed using the formula:

s_M=\dfrac{s}{\sqrt{n}}=\dfrac{12}{\sqrt{65}}=1.4884

Then, we can calculate the t-statistic as:

t=\dfrac{M-\mu}{s/\sqrt{n}}=\dfrac{30.15-32.48}{1.4884}=\dfrac{-2.33}{1.4884}=-1.565

The degrees of freedom for this sample size are:

df=n-1=65-1=64

This test is a left-tailed test, with 64 degrees of freedom and t=-1.565, so the P-value for this test is calculated as (using a t-table):

\text{P-value}=P(t

As the P-value (0.0612) is bigger than the significance level (0.05), the effect is not significant.

The null hypothesis failed to be rejected.

At a significance level of 0.05, there is not enough evidence to support the claim that the mean price in Providence for a bottle of red wine that scores 4.0 or higher on the Vivino Rating System is less than the population mean of $32.48.

<u>Critical value approach</u>

<u></u>

At a significance level of 0.05, for a left-tailed test, with 64 degrees of freedom, the critical value is t=-1.669.

As the test statistic is greater than the critical value, it falls in the acceptance region.

The null hypothesis failed to be rejected.

6 0
3 years ago
What is 3 cubed in math
andreev551 [17]

Answer:

"In math, a cube is a number multiplied by itself three times. The cube of 2 is 8 (2 x 2 x 2). It is also a three-dimensional shape where each of the six sides is a square or something shaped like a cube, such as an ice cube or meat cut into cubes)."

Step-by-step explanation:


7 0
3 years ago
Read 2 more answers
the Firefighter ladder of the length 17 was kept at the at a distance of 8 metres from the building to reach the window of the b
Andre45 [30]

Answer:

The answer is 15 units hope that helps

Step-by-step explanation:

Apply pythagorean formulae here

Take the 17 as hypotenuse... And 8 as the base....

So the pythagorean formulae is

( hypotenuse) Square = (height) Square + (base) Square......

Hence put the values and the height comes as 15 units

BTW are u Indian?...

6 0
3 years ago
Read 2 more answers
An airline runs a commuter flight between Portland, Oregon, and Seattle, Washington, which are 145 miles apart. An increase of 2
pychu [463]

The speed of the airplane is the ratio of the distance to the time

The initial average speed of the airplane is approximately 110.8 mph

Reason:

Given parameters are;

The distance between Portland Oregon and Seattle Washington = 145 miles

The decrease in travel time when the speed is increase by 20 mph =  minutes

The initial speed of the airplane, v = Required;

Solution;

t = \dfrac{145}{v}

t - \dfrac{12}{60}  = \dfrac{145}{v + 20}

Therefore;

\dfrac{145}{v} - \dfrac{12}{60}  = \dfrac{145}{v + 20}

Which gives;

\dfrac{145}{v + 20} - \dfrac{145}{v} + \dfrac{12}{60} = 0

Therefore

0.2·v² + 4·v - 2,900 = 0

v ≈ ±110.8 mph

The initial average speed of the airplane, v≈ ± 110.8 mph

Learn more  here:

brainly.com/question/11365874

4 0
2 years ago
Graph the quadratic function f(x)=(x−4)(x+2).
Pani-rosa [81]
See attached picture:
 vertex (1,-9)

3 0
3 years ago
Other questions:
  • Bruce would like to buy a pair of shoes that cost $155. He already has $35. His mom will pay him $20 a week to do chores around
    10·2 answers
  • If m1 = 70 what is m8?
    8·2 answers
  • A company donates money to a charity every time the baseball team hits a home run. They donate ​$450 for every home run. Write a
    5·1 answer
  • Which multiplication equations below can be used to help solve 480 ÷ 8? A. 8 × 50 = 400; 8 × 10 = 80 B. 4 × 100 = 400; 4 × 20 =
    6·1 answer
  • 9. Ms. Barton determined that the
    9·2 answers
  • Which expression is equivalent to ^3√216x^27? 6x3 6x9 72x3 72x9
    14·2 answers
  • Solve the problem below
    11·2 answers
  • * You are somebody worthy of good health, fitness, and wellness.
    14·2 answers
  • Sydney invests money in an account paying a simple interest of 5.2% per year. If no
    6·1 answer
  • Which expression is equivalent to 24 - (-6)?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!