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stira [4]
3 years ago
14

A mine elevator was at a depth of -120 feet. After 15 seconds, the mine elevator was at a depth of -30 feet. Which expression sh

ows how to find the speed of the mine elevator in feet per second?
Mathematics
1 answer:
KonstantinChe [14]3 years ago
8 0
-120 + -30 = 90. 90/15 = 6
Answer ; 6mph
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What is the factored form of the equation 2(x-1)(8x-3)=0? Which ordered pairs are solutions to the system? Check all of the boxe
vovikov84 [41]

Answer:

  The solutions to the equation are 1, 0.375.

Step-by-step explanation:

The equation is already in factored form.

The solutions to the system are the values of x that make one or the other of the factors be zero.

  x -1 = 0 . . . when x = 1

  8x -3 = 0 . . . when x = 3/8 = 0.375

There is only one variable, so no "ordered pairs" are involved.

The solutions are {1, 0.375}.

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1.name two acute angles in the figure
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Step-by-step explanation:

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Which of the following is the standard form of 36 / 24​
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Answer:

15 x 10^-1

Step-by-step explanation:

36÷24=1.5

In this case I'm considering 15 as the base of my standard form.

To make 15 a 1.5, you'll have to move from right to left one unit and on the number line moving from the right to left gives you a negative number of units moved

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Pls help me answer 2.2.3 and 2.2.4 <br>(2.2.4 needs to be converted)<br>ill give brainstorm​
Anarel [89]

\bold{\huge{\underline{ Solution }}}

<h3><u>Analysis </u><u>of </u><u>graph </u><u>:</u><u>-</u></h3>

We have given one graph which is plot between distance and time. where time is in minutes and distance is in seconds.

<u>According </u><u>to </u><u>the </u><u>graph </u>

  • For the first 5 minute ( O to A) , The distance is continously increasing 2m / per minute .
  • For the 5 minute that is from 5 minute to 13 minute ( A to B) both marellize and her dog wally moving with the constant speed .
  • For next 3 minutes that is from 10 minutes to 13 minutes ( B to C) , The distance is continously decreasing with time .
  • For next 3 minutes that is from 13 to 16 minutes ( C to D) , Again they moved with constant speed .
  • For next 6 minute that is from 16 to 21 minutes ( D to E) . Again, There distance is increasing with time .
  • Again For next 4 minutes that is 21 to 25 minutes , they are moving with constant velocity .

<h3><u>Let's </u><u>Begin </u><u>:</u><u>-</u></h3>

1) Between O and A

  • The marellize and wally when moving between O to A , The distance is constantly increasing with time.
  • The graph is Straight line

2) Between A and B

  • The marellize and wally when moving between A to B, The distance remains the same with time that is they moving with constant speed.
  • The graph is constant or steady

3) Between B to C

  • The marellize and wally when moving between B to C, The distance is constantly decreasing with time .
  • The graph is straight line but it follows decreasing function .

4) For covering the First 6 km ,

<u>According </u><u>to </u><u>the </u><u>graph</u><u>, </u>

  • For covering first 6 km, They took 3 minutes.

5) No, Marellize and wally walk does not from where they have started.

<u>According </u><u>to </u><u>the </u><u>graph </u>

  • It is end at 5 m instead of 0m .
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