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
Taya2010 [7]
2 years ago
9

the speed of sound is deterimened by the temperature of the air. The speed, c, in meters per second is given by c=331.5sqrt(1+t/

273.15) where t is the temperature of air in degrees Celsius. How fast will sound travel when the temperature is 55 degrees Celsius?
Mathematics
1 answer:
rodikova [14]2 years ago
4 0
Speed = 331.5*sqrt(1+55/273.15)=365.15
You might be interested in
Write the equation in standard form. Identify the important features of the graph:
Lerok [7]

Answer:

Standard form: \left(x-\dfrac{9}{2}\right)^2+(y+5)^2=\dfrac{121}{4}.

This equation represents the circle with the center at the point \left(\dfrac{9}{2},-5\right) and the radius r=\dfrac{11}{2}.

Step-by-step explanation:

Consider expression x^2+y^2-9x+10y+15=0.

First, form perfect squares:

(x^2-9x)+(y^2+10y)+15=0,\\ \\\left(x^2-9x+\dfrac{81}{4}\right)-\dfrac{81}{4}+(y^2+10y+25)-25+15=0,\\ \\\left(x-\dfrac{9}{2}\right)^2+(y+5)^2=10+\dfrac{81}{4},\\ \\\left(x-\dfrac{9}{2}\right)^2+(y+5)^2=\dfrac{121}{4}.

This equation represents the circle with the center at the point \left(\dfrac{9}{2},-5\right) and the radius r=\dfrac{11}{2}.

6 0
3 years ago
Your job is to sort and sack marbles for sale. A bag contains 55 marbles, some red and some green. If there are 11 red marbles,
vovikov84 [41]
Total of 55 marbles.....if there are 11 red marbles, then there are (55 - 11) = 44 green marbles. So the ratio of red marbles to green marbles is :
11:44 which reduces to 1:4 or 1/4 or 1 to 4
5 0
3 years ago
Read 2 more answers
There are three motors available to repair Ralph’s vacuum cleaner. Motor #1 has a 65% chance of breaking by the end of the week.
Orlov [11]

Answer:

0.619

Step-by-step explanation:

from the question we have the following data:

probability of motor 1 breaking = 65% = 0.65

probability of motor 2 breaking = 35% = 0.35

probability of motor 3 breaking = 5% = 0.05

since we have 3 motors the probability of any of them breaking down is  = \frac{1}{3}

but what the question requires from us is the conditional probability of the first one being installed

we have to solve this questions using bayes theorem

such that:

\frac{0.65*\frac{1}{3} }{0.65*\frac{1}{3}+0.35*\frac{1}{3}+0.05*\frac{1}{3}   }

= \frac{0.2167}{0.2167+0.1167+0.0167}

= \frac{0.2167}{0.3501}

= 0.618966

approximately 0.619

therefore the conditional probability ralph installed the first motor is 0.619

8 0
3 years ago
PLSSS HELP Simplify.<br><br> –2 + (–9)
Usimov [2.4K]

Answer:

-11

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Antonio is making a mini waffle cones. Each waffle cone is 3 inches high and has a radius of 3/4 inches. What is the volume of t
castortr0y [4]
I got 7.065 for my answer.
3 0
3 years ago
Other questions:
  • One number is five more than two times another. If there sum is decreased by one, the result is sixteen. Find the numbers.
    12·1 answer
  • In 2010, the estimated population of Los Angeles was 3.79 × 10^6 people. The population of California that same year was about 9
    15·2 answers
  • you are trying to increase your monthly savings to buy a used car your boss allows you to work one hour of overtime at time and
    14·1 answer
  • Find the range of y= 3/2 cos 4x-1
    6·2 answers
  • A(n) _____ has a set payment schedule to pay off the debt.
    11·1 answer
  • What’s the answer to this problem
    13·1 answer
  • 9. What four consecutive integers have a sum of -34?
    15·1 answer
  • Verify that each equation is an identity.<br><br><br> Show Work plzz!!
    11·1 answer
  • HELP HELP I NEED HELP​
    13·2 answers
  • 7. If the diagonals of a square measure 24
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!