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
Deffense [45]
2 years ago
5

Please help me!! thank you find a :

Mathematics
1 answer:
r-ruslan [8.4K]2 years ago
6 0

Answer:

please answer properly friends and only answer for the following pairs are

You might be interested in
Help plz I'm desperate ​
lutik1710 [3]

<u>Anna:</u>

1st month = 18 + \frac{3}{4} = 18\frac{3}{4} inches

2nd month = 18\frac{3}{4} + \frac{3}{4} = 19\frac{1}{2}

3rd month = 19\frac{1}{2} + \frac{3}{4} = 20\frac{1}{4}

4th month = 20\frac{1}{4} + \frac{3}{4} = 21

5th month = 21 + \frac{3}{4} = 21\frac{3}{4}

<u>Grace:</u>

Because Anna is \frac{9}{4} inches shorter than Grace, we can start the count from the third month:

1st month = 20\frac{1}{4}

2nd month = 21

3rd month = 21\frac{3}{4}

4th month = 21\frac{3}{4} + \frac{3}{4} = 22\frac{1}{2}

5th month = 22\frac{1}{2} + \frac{3}{4} = 23

7 0
3 years ago
A survey of 90 men found that an average amount spent on St. Patrick's day of $55 with a standard deviation of $18. A similar su
dem82 [27]

Answer:

The value of the test statistic is 4.70.

Step-by-step explanation:

The hypothesis for this test can be defined as follows:

<em>H</em>₀: Men do not spend more than women on St. Patrick's day, i.e. μ₁ = μ₂.

<em>H</em>ₐ: Men spend more than women on St. Patrick's day, i.e. μ₁ > μ₂.

The population standard deviations are not known.

So a <em>t</em>-distribution will be used to perform the test.

The test statistic for the test of difference between mean is:

t=\frac{\bar x_{1}-\bar x_{2}}{\sqrt{\frac{s^{2}_{1}}{n_{1}}+\frac{s^{2}_{2}}{n_{2}}} }

Given:

\bar x_{1}=55\\s_{1}=18\\n_{1}=90\\\bar x_{1}=44\\s_{1}=16\\n_{1}=86

Compute the value of the test statistic as follows:

t=\frac{\bar x_{1}-\bar x_{2}}{\sqrt{\frac{s^{2}_{1}}{n_{1}}+\frac{s^{2}_{2}}{n_{2}}} }=\frac{55-44}{\sqrt{\frac{15^{2}}{90}+\frac{16^{2}}{86} }}=4.70

Thus, the value of the test statistic is 4.70.

7 0
3 years ago
Draw a figure with the given perimeter. 6 units
erica [24]
<span>We have to draw a figure with a perimeter 6 units. If we want to draw a rectangle it can`t be a 3 by 2 because it has a perimeter 2*2 + 2*3 = 4 + 6 = 10 units. It must be a 2 by 1 rectangle ( 2*2 + 2*1 = 4 + 2 = 6 units ).</span>
6 0
3 years ago
Which of the following statements is true of the number 651.44
MAXImum [283]

Answer:

B

Step-by-step explanation:

4 0
2 years ago
Read 2 more answers
Solve the system of equations <br> x+2y=6<br> 3x+8y=4<br> Which is the y-value of the solution
Alja [10]

Answer:

(20,-7)

Step-by-step explanation:

6 0
3 years ago
Other questions:
  • What is the solution to the rational equation x over 2x minus 1 minus 1 over 4 equals 2 over 2x minus 1 ? (1 point)
    11·1 answer
  • What is the LCD for ?11/20 31/45<br><br> 315<br><br><br> 105<br><br><br> 66<br><br><br> 945
    12·1 answer
  • Which best describes the diagram?
    5·1 answer
  • Find the general indefinite integral. (use c for the constant of integration. 4 x 2 + 3 + 8 x2 + 1 dx
    11·1 answer
  • Match the parabolas represented by the equations with their foci. Tiles y = -x2 + 4x + 8 y = 2x2 + 16x + 18 y = -2x2 + 5x + 14 y
    13·1 answer
  • What is the area?<br>PLEASE HELP ME!!
    10·2 answers
  • Please help with this problem
    6·1 answer
  • Who wants some points???? Who ever answers first gets brainliest --has to be correct tho--
    7·2 answers
  • Jeanne babysits for $6 per hour. She also works as a reading tutor for $10 per hour. She is only allowed to work 20 hours per we
    8·2 answers
  • 7 1/8 - 5 2/3 = <br><br> Whois I’ve answer to this problem in fraction form? Step by step please?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!