4. How many seconds will it take an echo to reach your ears if you yell toward a mountain
82 m away on a day when the air temperature is Oº C?
t = ?
Answers
The time taken by sound to reach your ear is 0.25 second.
Time of echo :The speed of sound at temperature of 0º C is 331.5m/s
the relation between distance , time and velocity is,
[tex]x=v*t\\\\t=\frac{x}{v}[/tex]
Where, x is distance, v is velocity and t is time.
Given that, [tex]x=82m,v=331.5m/s[/tex]
Substitute values in above relation.
[tex]t=\frac{82}{331.5}=0.25second[/tex]
the time taken by sound to reach your ear is 0.25 second.
Learn more about the sound velocity here:
https://brainly.com/question/2142871
Related Questions
A student's incorrect attempt to simplify the exponential expression is shown
mn" = (mn)?
What is his mistake?
Answers
Answer:
it is the second one I just had this question to lol.
Please help with this i need to find out what x is and im terrible at this
Answers
Answer:
the asnwer is 9
Step-by-step explanation:
Hope this helps!
Please makr brainliest answer if it's correct!
Stay safe, God bless and happy studying!
Given
Δ
Q
R
S
≅
Δ
T
U
V
,
Q
S
=
3
v
+
2
and
T
V
=
7
v
−
6
, find the length of QS and TV.
Answers
The length of the segment QS is 8 units and the length of the segment TV is 8 units and this can be determined by using similar triangle properties.
Given :
Triangle QRS is congruent to triangle TUV.The length of the segment QS is (3v + 2).The length of the segment TV is (7v - 6).The following steps can be used in order to determine the length of QS and TV:
Step 1 - According to the given data, the triangle QRS is congruent to triangle TUV.
Step 2 - So, the length of the segment QS is equal to the length of the segment TV.
QS = TV
Step 3 - Substitute the values of QS and TV in the above expression.
3v + 2 = 7v - 6
7v - 3v = 6 + 2
4v = 8
v = 2
Step 4 - The length of the segment QS and TV is:
QS = 3(2) + 2 = 6 + 2
QS = 8
TV = 7(2) - 6 = 14 - 6
TV = 8
For more information, refer to the link given below:
https://brainly.com/question/25882965
write the equation of the line in slope-intercept form that has a y-intercept that is -5 and a slope of 8
Answers
Answer:
Step-by-step explanation:
y + 5 = 8(x - 0)
y + 5 = 8x - 0
y = 8x - 5
ANSWER PROPERLY PLZ HELP
ANSWER BOTH QUESTIONS
Answers
2.im not sure
fill in the blank the Hercules motor company makes a varied number of cars each day at the factory use the terms mean,median,and mode to a awsner the following question. 1.the ____________ would give the company the average number of cars produced in a typical day 2.the ___________ would tell what a number of cars is produced more than the others. 3.the __________ would tell the company the middle number of produced cars from this set.
Answers
Answer:
Step-by-step explanation:
1. mean, 2. mode, 3. median
What is the perimeter of this shaded figure that please somebody respond i need help ?????!!!!!!!!
Answers
38
Step-by-step explanation:
2+2+2+2+7+7+10+6= 38
count up all of the sides of the shape then you get your answer :)
which option is an example of a persuasive argument
○ A. A water-balloon attack
○ A. A screaming match
○ A. submarine battle
○ A. request for an allowance
Answers
Answer:
Request for an allowance
Step-by-step explanation:
You have to persuade, that you want money. They aren't just going to give it to you.
please help guys -_-
Answers
Answer:
C. the remainder must always be less than the dividend
question 7 please :)))))
Answers
Answer:
your answer is correct
What is the slope of the line?
Answers
Answer: -3/1
Step-by-step explanation:
PLeaseee answer correctly if u want brainelsit and 10 pts! first one will get rewarded :)
Answers
Answer: i believe its the third answer
Step-by-step explanation:
Answer:
Step-by-step explanation:
The water decreases 3 cm per day.
Find the zero of the function f(x) = -8x + 4.
a. -1/2
b. 2
c. -2
d. 1/2
Please select the best answer from the choices provided
A
B
C
D
Answers
Answer:
D
Step-by-step explanation:
f(1/2)=-8(1/2)+4 = 0
Find the value of x for which m || n.
Answers
Answer:
40
Step-by-step explanation:
The angles are equal to eachother so 4x-26 = 3x+14
i need help with geometry
Answers
Answer:
C. I think
Step-by-step explanation:
Answer:
C
Step-by-step explanation:
whats the craziest fact u know?
Answers
Which of the following statements about the graph of y= [tex]\frac{3}{4}[/tex]x −1 are true?
SELECT ALL THAT APPLY
A.) The slope of the line is 3/4
B.) The slope of the line is -1
C.) The line intersects the point (0,3/4)
D.) The line intersects the point (0,-1)
E.) The y-intercept is -1
F.) The y-intercept is 3/4
Answers
does anyone know the answer?
Answers
Answer:
43
Step-by-step explanation:
Where in the real-world is the Pascal Triangle used? Provide an example.
Answers
Answer:
There are many colored pebbles to choose from out of the driveway. Karmin could not decide what one he wanted for his school project. So he took the best looking 4 from the driveway. 3 of them are now his backups.
You use this tequnic (sorry I can't spell) almost everyday. When ever you think about how much of something to take, you could be using this Pascal Triangle.
I hope this helped.
30 Points Easy!!!! The zoom feature on a camera lens allows you to dilate what appears on the display. When you (1 pc
change from 100% to 300%, the new image on your screen in an enlargement of the original
image with a scale factor of 3. If the new image is 24 millimeters wide, what was the width of
the original image?
8 millimeters
16 millimeters
36 millimeters
63 millimeters
Answers
Answer:
8 millimeters
Step-by-step explanation:
Sense 24/3 is 8, then it is 8 millimeters. So, 300/3 is 100, that is why we use the number 3 to divide
These questions down below are a bit confusing for me, if someone would help me with them I would be absolutely grateful thank you so much
Answers
2.) honestly not sure
3.) $540
4.) 60 inches, yes because 40wks x 1.5 inches = the amount it’ll grow after 40wks which is 60in.
PLEASE PLEASE HELP!
The space shuttle travels at an orbital speed of 17,500 miles per hour. How many meters per minute is this?
Answers
Answer:
291.666666667
Step-by-step explanation:
one minute is 60 seconds
17500 divided by 60
291.666666667
60 sec = 1 min,
Need to find how many meters per minute and once you do that it should give you
291.6666667
What is the Remainder when using long Division?
Answers
Answer:
it's the number that u end up with at the bottomof the division process. hope this helps...
Step-by-step explanation:
Answer:
[tex] {2x}^{2} + 3x - 11 + \frac{19x + 23}{ {x}^{2} + 2x + 2} [/tex]
Also, the term remaining after the last subtract step is the remainder and must be written as a fraction in the final answer.
I will mark branliest please
1.Classify each triangle with the given side lengths as Acute, Obtuse, or Right
9, 12, 15
Acute
Obtuse
Right
2. Classify each triangle with the given side lengths as Acute, Obtuse, or Right
5, 10, 9
Acute
Obtuse
Right
3.Classify each triangle with the given side lengths as Acute, Obtuse, or Right
6, 7, 11
Acute
Right
Obtuse
Answers
Answer:
1.) Right
2.)Acute
3.) obtuse
Step-by-step explanation:
Answer:
1.right
2.acute
3.obtuse
Which property is used in the first step to solve this equation?
4 (x minus 6) = 5. 4 x minus 24 = 5. 4 x = 29. x = StartFraction 29 Over 4 EndFraction
addition property of equality
distributive property
division property of equality
commutative property
Answers
Answer:
distributive property
Answer:
distributive
Step-by-step explanation:
What is 1/8 of 3 please help!!
Answers
CAYB is a quadrilateral
CA= 3a
CB= 6b
BY= 5a-b
X is the point on AB such that AX:XB= 1:2
Prove that CX = 2/5 CY
Answers
Answer:
see explanation
Step-by-step explanation:
CY = CB + BY
= 6b + 5a - b
= 5a + 5b
---------------------
CX = CA + AX
= CA + [tex]\frac{1}{3}[/tex] AB , find AB
AB = AC + CB
= - 3a + 6b
= 6b - 3a
Thus
CX = CA + [tex]\frac{1}{3}[/tex] AB
= 3a + [tex]\frac{1}{3}[/tex](6b - 3a)
= 3a + 2b - a
= 2a + 2b
---------------------
and
[tex]\frac{2}{5}[/tex] CY
= [tex]\frac{2}{5}[/tex] (5a + 5b)
= 2a + 2b = CX
Hence CX = [tex]\frac{2}{5}[/tex] CY ⇒ Proven
n the sequence generated by the formula an = n – 4, which term has a value of 8?
Answers
Answer:
The twelfth term :)
hope this helps
Answer:
the twelfth term answer in edg 2021
Step-by-step explanation:
n the sequence generated by the formula an = n – 4, which term has a value of 8?
A scale drawing of a rectangle park measures 6 inches long and 2 inches wide. If the scale used for the 3 inches equals 7 yards, what is the actual length of the park?
Answers
Help me ASAP PLZZZZZZZZ
Answers
Answer:
128 bunnies I believe.
Answer:
128 or 32
Step-by-step explanation: