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
Kobotan [32]
3 years ago
9

Sound travels through air at about 344 meters per seconds when the temp. is 20 degrees c. If Enrique lives 2 kilometres from the

fire station and it takes 5 seconds of the fire station siren to reach him, how can you prove indirectly that it's not 20 degrees Celsius when Enrique hears the siren?
Mathematics
1 answer:
Vaselesa [24]3 years ago
8 0

Answer:

(344*20)  +  ( 2*20)  = (20*2) = ?

Step-by-step explanation:

You might be interested in
If a+b=5 and a-b=4 then b^2-a^2 =
Anna007 [38]

Answer:

a + b = 5 \\ a \:  = 5 - b \\  a - b = 4 \\ 5 - b - b = 4 \\ 5 - 2b = 4 \\ 5 - 4 = 2b \\ 1 = 2b \\  \frac{1}{2}  =  \frac{2b}{2}  \\0.5 = b \\  b = 0.5 \\ a = 5 - b \\  = 5 - 0.5 \\  = 4.5 \\  {a \: }^{2}  -  {b}^{2}  = ( {4.5}^{2})  - (  {0.5}^{2} )  \\  = 20.25 - 0.25 \\  = 20 \\  {a}^{2}  -  {b}^{2}  = 20

Step-by-step explanation:

HOPE THAT THIS IS HELPFUL.

HAVE A GREAT DAY.

5 0
3 years ago
Please help! I’ll also give brainliest! Thank you!
Rashid [163]

Answer:

VII,V,IV,VI

Step-by-step explanation:

3 0
3 years ago
What is the difference between the range of the electoral votes per state and the modal number of electoral votes in the followi
-Dominant- [34]
The difference is 45.

The modal number of the electoral votes is 5 because it appears the most.

The range of the electoral votes is 55 - 5 = 50 (Highest minus the lowest).

The difference between the two is found by subtracting them.
50 - 5 = 45
6 0
3 years ago
Read 2 more answers
1 + 1 equals???????????
lesantik [10]

two !

hAhA jK iTs 75

6 0
3 years ago
PLESSE HRLP IM BEGGING U ILL MARK U
Andrew [12]
Answer:
y = 1/2x + 14

Explanation:
y = 1/2x + 14 is perpendicular to y = -x = 18 and passes through the slope (-6, 11)

Tip:
Desmos (the app) helps a lot with graphing problems.
7 0
3 years ago
Other questions:
  • The table represents the start of the division of -2x^3 + 11x^3 - 23x+20 by x^2 -3x + 4. Which terms belong in one of the shaded
    13·2 answers
  • HELP, DUE TOMORROW!!!<br> How do you solve real world problems using expressions?
    15·2 answers
  • Ms. Tan earns $350 per week plus an 8% commission on her shoe sales. She sold $560 last week. What was her total poay for the we
    10·1 answer
  • Help, I’m a bit confused, what would the coordinates be. The question is in the picture!!!!!
    5·1 answer
  • What is the answer ​
    8·1 answer
  • sharon arrange flowers in 5 jars for a party. she puts 4 carnations, 4 roses,and 2 daisies in each jar.how many flowers does sha
    7·1 answer
  • The range of which function includes -4?
    8·2 answers
  • I need help with these 3 questions. 25 points!!!
    14·1 answer
  • Solve for c <br><br> C – 7 = -9
    9·2 answers
  • The endpoints of jk are j(-8,0) and k(1,4). find the length of jk
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!