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vesna_86 [32]
2 years ago
5

A submarine was at the surface of the water. 21 seconds later, it was at a depth of 294 meters. What was the average change in t

he submarines depth each second?
Mathematics
1 answer:
topjm [15]2 years ago
3 0

Step-by-step explanation:

21 seconds = -294 meters

=> 1 second = -294/21 = -14 meters

Hence the average change is -14 meters per second.

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If f(x)=3x-6 then find f(4)
masya89 [10]

Answer:

f(4) = 6

Step-by-step explanation:

f(x) = 3x - 6

f(4) = 3(4) - 6

f(4) = 12 - 6

f(4) = 6

8 0
3 years ago
12 What is the solution to this equation?
Levart [38]

Answer:

x=-5

Step-by-step explanation:

add 7 to 53 then divide -12 to itself and 60.

5 0
2 years ago
Given f(x) and g(x) = f(x) + k, look at the graph below and determine the value of k.
Anton [14]

Answer:

Given the graph f(x) = \frac{1}{3}x -2 and g(x) = \frac{1}{3}x + 3

We have to find the value of k;

Since, g(x) = f(x) +k

\frac{1}{3}x+3 = \frac{1}{3}x-2 +k

Subtract \frac{1}{3}x from both sides we get;

3 = -2 +k

Add 2 to both sides we get;

3+2 = -2 +k +2

Simplify:

5 = k

or

k = 5

Therefore, the value of k = 5


3 0
3 years ago
Read 2 more answers
The sum of two numbers is 53. if twice the first number minus three times the second number is 26, find both numbers.
EastWind [94]
Make an equation system based on the problem
eg. a is the first number and b is the seond number
An equation for "<span>The sum of two numbers is 53" is
</span>⇒ a + b = 53
An equation for "<span>twice the first number minus three times the second number is 26"
</span>⇒ 2a - 3b = 26
<span>
Solve the equations by elimination and subtitution method
Eliminate a to find the value of b
a + b = 53   (multiplied by 2)
2a - 3b = 26
--------------------------------------
2a + 2b = 106
2a -  3b = 26
------------------- - (substract)
       5b = 80
         b = 80/5
         b = 16

Subtitute the value of b to one of the equations
a + b = 53
a + 16 = 53
a = 53 - 16
a = 37

The numbers are 16 and 37</span>
6 0
3 years ago
What is the value of 9/5 x 1/3
adoni [48]
\frac{9}{5}  *   \frac{1}{3}         The nine cancels the three and leaves a remainder of three \frac{3}{5}  *   \frac{1}{1} &#10;

: . \frac{9}{5}  *   \frac{1}{3}  =  \frac{3}{5}
6 0
3 years ago
Read 2 more answers
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