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inn [45]
3 years ago
7

How does a sonar system measure distance

Mathematics
1 answer:
Morgarella [4.7K]3 years ago
3 0
It is a technique that uses propagation to navigate communicate with or detect objects on or under the surface of the water such as other vessels hope this helsp! ^0^
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Connexus.com/assessments/testNav.aspx?idAssessment=1148989&idWebuser=4086203&idSection=1623806&idHtmllet=11244178&am
Ivanshal [37]

Answer:

there are 3 answers

Step-by-step explanation:

the original is 23 1/2

Now he can do 23

or he can do 22

5 0
2 years ago
principal phillipi used a random sample of 20 students records to determine how far, in miles, students live from the school. Th
zzz [600]
To find the mean:

Take <span>3 4 5 3 4 5 6 5 4 3 2 3 4 5 6 4 8 4 3 2 and add them all together

=83

Now you divide 83 by the number of terms in the sample set, which is 20. 

83/20 = 4.15

For rounding to the nearest tenth, look at the hundredths space, which is 5. Since it is 5 or higher, round the tenths up one. 

final answer= 4.2 </span><span />
5 0
3 years ago
Read 2 more answers
3. Determine the values of x and y for the parallelograr<br> (3x + 15)°<br> (y +30)°<br> (3x – 15)°
nataly862011 [7]

Answer:

stupid

Step-by-step explanation:

rat

6 0
3 years ago
The price of an item has risen to $156 today. Yesterday it was $65 . Find the percentage increase.
faltersainse [42]
That's a BIG increase in price!  What cost $65 yesterday is now $156.  What was the increase?  $156 - $65 = $91.

Next:  $91 is what fraction of $65?  Divide.  Answer:  1.4.

Finally, multiply this last result by 100%:  140% (answer)
6 0
3 years ago
An 8-ounce can of tomatoes costs $1.14. and a 10-ounce can costs $1.95. Which can of tomatoes has the better unit price?
Harlamova29_29 [7]
The 8 ounce can of tomatoes that costs $1.14 has the better unit price.

Explanation: It’s $0.14 per oz and the 10-ounce can has the unit price of $0.19. The cheaper unit price is the “better” unit price.
6 0
3 years ago
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