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SVETLANKA909090 [29]
3 years ago
9

Help me please! BRAINLIEST

Mathematics
1 answer:
masya89 [10]3 years ago
6 0

Answer:

1. 53 by 58 , 222 ft

2. 321000

3.1080

4.  3.5

Step-by-step explanation:

1. 23+15+15 = 53

28+15+15= 58

53+53+58+58= 222

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I REALLY NEED HELP PLEASEE!!!
charle [14.2K]

Answer:

Hard for me sry

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
|7| <br><br> What does this mean?
Elza [17]

Absolute value of 7. Any real numbers in the absolute sign would equal to the positive value.

<u>D</u><u>e</u><u>f</u><u>i</u><u>n</u><u>i</u><u>t</u><u>i</u><u>o</u><u>n</u>

\large \boxed{ |x|  =  \begin{cases} x  \:  \:  \:  \: (x \geqslant 0) \\  - x \:  \:  \:  \: (x < 0) \end{cases}}

If we substitute x = 7 in. Answer by using the definition of absolute value. Note that we only substitute x = 7 in x and not -x since 7 is greater than 0 and not less than 0.

\large{ |7|  = 7 \:  \:  \:  \:  (x \geqslant 0)}

You may also be wondering what will happen if we substitute x = any negative numbers.

\large{ | - 7|  =  -  ( - 7) \:  \:  \:  \: (x <  0)} \\  \large \boxed{ | - 7|  =  7}

Because -7 is less than 0. We substitute in -x and not x. This is the definition of absolute value. But to understand it easily, any numbers in absolute value have to equal to their positive value.

Conclusion

  • |7| means the absolute value of 7.
  • |7| is 7.
  • |x| is x when x ≥ 0 but -x when x < 0

Let me know if you have any doubts regarding the absolute value through comment!

7 0
3 years ago
Samir incorrectly found the distance between -17 and 4 by following these steps:
Usimov [2.4K]

Answer: Step 4

Step-by-step explanation:

The absolute value of 21 is 21, not -21,  

5 0
3 years ago
it takes an air pump 5 minutes to fill a twin sized air mattress (39 by 8.75 by 75 inches). how long will it take to fill a quee
Shalnov [3]

It take 8.205 minutes to fill a queen sized mattress.

<h3>What is volume?</h3>

'Volume' is a mathematical quantity that shows the amount of three-dimensional space occupied by an object or a closed surface.

Given dimensions:

Twin sized air mattress (39 by 8.75 by 75 inches).

Queen sized mattress (60 by 8.75 by 80 inches)

Now, Volume of twin sized mattress

=39* 8.75* 75

= 25593.35 cubic inch

Volume of queen sized mattress,

=60* 8.75* 80

= 42000 cubic inch

as, To fill 25593.35 cubic inch it takes 5  minutes

so, to fill 1 cubic inch = 5/25593.35

and, So to fill 42000 cubic inch it will take = 42000* 5/25593.35

=8.205 minutes

Learn more about this concept here:

brainly.com/question/10980137

#SPJ4

7 0
2 years ago
Which is a step in the process of calculating successive discounts of 8% and 10% on a $50 item?
PSYCHO15rus [73]

Answer: C. take 10% of $46

Step-by-step explanation:

7 0
2 years ago
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