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
Tcecarenko [31]
3 years ago
8

When data consist of rates of change, such as speeds, the harmonic mean is an appropriate measure of central tendency. The harmo

nic mean for n data values, assuming no data value is 0, is given by the equation below. Suppose you drive 53 miles per hour for 100 miles, then 67 miles per hour for 100 miles. Use the harmonic mean to find your average speed. (Round your answer to two decimal places.)
Mathematics
1 answer:
boyakko [2]3 years ago
5 0

Answer:

The answer is "64.19".

Step-by-step explanation:

\text{Average speed = Harmonic mean speed}

                       = \frac{2}{\frac{1}{60} + \frac{1}{69}}\\\\ = \frac{2}{\frac{69+60}{4,140} }\\\\ = \frac{2}{\frac{129}{4,140} }\\\\= \frac{2}{0.0311594203 }\\\\ = 64.1860465 \\\\ \bold{= 64.19}

The final answer is "64.19".

You might be interested in
I need help with a Box method problem I don't know how to do them
horrorfan [7]
Sure where is the problem
6 0
3 years ago
Read 2 more answers
What is 0.06% as a decimal and a fraction
mezya [45]
<span>Step 1: 0.06 = 6⁄100</span> 
<span>Step 2: Simplify 6⁄100 = 3⁄50</span><span> 
hope this helps:)

</span>
6 0
3 years ago
Read 2 more answers
Solve the problems.
RoseWind [281]

Answer:

????

Step-by-step explanation:

6 0
3 years ago
Number 4 I have no idea how to do.
natta225 [31]

Volume is a three-dimensional scalar quantity. The cost of the glass is $1312.24.

<h3>What is volume?</h3>

A volume is a scalar number that expresses the amount of three-dimensional space enclosed by a closed surface.

Given the colony must be able to take a volume of 200,000 cubic meters, therefore, the diameter of the hemisphere will be,

The volume of Hemisphere = (2/3)πr³

200,000 = (2/3) × π × R³

R = 45.7

The area of the base of the hemisphere is,

Area of the base = πR² = π×(45.7)  = 6561.185 meters²

Given the cost of glass is $0.20 per square meter, therefore, the cost of the glass of the base will be,

Cost of glass = 6561.185 × 0.20 = $1312.24

Hence, the cost of the glass is $1312.24.

Learn more about Volume:

brainly.com/question/13338592

#SPJ1

3 0
2 years ago
PLEASE HELP ASAP
maria [59]

Answer:

First option:  3x^2-5x=-8

Second option: 2x^2=6x-5

Fourth option: -x^2-10x=34

Step-by-step explanation:

Rewrite each equation in the form ax^2+bx+c=0 and then use the Discriminant formula for each equation. This is:

D=b^2-4ac

1) For 3x^2-5x=-8:

 3x^2-5x+8=0

Then:

D=(-5)^2-4(3)(8)=-71

Since D this equation has no real solutions, but has two complex solutions.

2) For 2x^2=6x-5:

 2x^2-6x+5=0

Then:

D=(-6)^2-4(2)(5)=-4

Since D this equation has no real solutions, but has two complex solutions.

3) For 12x=9x^2+4:

 9x^2-12x+4=0

Then:

D=(-12)^2-4(9)(4)=0

Since D=0 this equation has one real solution.

4) For -x^2-10x=34:

 -x^2-10x-34=0

Then:

D=(-10)^2-4(-1)(-34)=-36

Since D, this equation has no real solutions, but has two complex solutions.

3 0
3 years ago
Other questions:
  • Write 100/100 in the simplest form
    5·2 answers
  • HELP!!!!!!!!!! PLEASE!!!!!!!WILL MARK AS BRAINLIEST
    12·1 answer
  • A person invested $7,400 in an account growing at a rate allowing the money to
    14·1 answer
  • The average weight of David, Esther, and Henry is 42.6 kg. Esther is twice as heavy as Henry. David is 5.2 kilograms lighter tha
    12·1 answer
  • 6 – 2x = 24<br> -6<br> - 6<br> 2x = 18<br> 2 2<br> x = 9<br> Is this statement true or false?
    13·1 answer
  • What is⅖ + ⅔ in simplest form?
    9·1 answer
  • The population of a small town was 3500 in 2005. The population increases by 4% annually. A. Write an exponential growth functio
    12·1 answer
  • An answer with a reasonable response will get brainiest. It is in the picture
    14·1 answer
  • If 3, 9, 10, x are in proportion find the value of x.​
    12·2 answers
  • Solve for 8x+c=k <br> Solve for X
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!