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prisoha [69]
3 years ago
12

When to use brackets or parentheses math?

Mathematics
1 answer:
Blababa [14]3 years ago
3 0
Pretend the < and > are brackets
I'll use an example. 5+5+2x = 2 < (3*2) -5>

basically, if you use an equation were something is in brackets, it's because the problem inside needs to be solved before the rest, but there is a part of the equation that needs to be used first inside the brackets. I don't know if that makes sense,but hope that helps, if not tell me what's confusing! 
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A calculator may be used for this question. The energy saving from recycling one glass bottle will power the oven Adam uses to c
anastassius [24]
6 hours=360 minutes
Glass bottles needed to cook for 6 hours=360/7.5
                                                           =48
Weight of 48 glass bottles=48x500g
                                      =24000g
                                      =24kg
Price of 24kg of glass=5px24
<span>                               =120p</span>
7 0
3 years ago
One of the parking lot lights at a hospital has a motion detector on it, and the equation (x+10)2+(y−8)2=16 describes the bounda
Pani-rosa [81]
We are given an equation:
(x+10)^{2} +  (y-8)^{2} = 16

This is an equation of a circle. General form of a circle equation is:
(x-a)^{2} + (y-b)^{2} = r^{2}
Where:
a = x coordinate of a center
b = y coordinate of a center
r = radius of a circle

Motion detector can detect person anywhere within a boundary. The greatest distance at which detector can detect is at the edge of a circle. That distance, between detector and edge of circle, is equal to radius.

From the equation we have:
r^{2} =16  \\ r=4
The greatest distance at which person can be detected is 4ft.
7 0
3 years ago
Read 2 more answers
Here's a question for the day, it's simple but it needs explaining.
GuDViN [60]
It is used to see if a graph represents a function because if there is 2 dots or intersecting lines within the other lines then it is not a function. if there is only one line or dot, then yes, it is a function. hope i explained it well.
5 0
3 years ago
Read 2 more answers
Marking as brainyest PLEASE HELP
trasher [3.6K]

Answer:

C) f(x) increases by 900%

Step-by-step explanation:

The rate of change is

f(4) - f(3)

---------------

4-3

f(4) = 9*4 = 36

f(3) = 9*3 = 27

36 -27

---------------

4-3

9

-----

1

The rate of change is 9

To change to a percent, multiply by 100%

9*100% = 900%

5 0
3 years ago
Read 2 more answers
How can you construct perpendicular lines and prove theorems about perpendicular lines
omeli [17]

Answer:

See descriptions below.

Step-by-step explanation:

To construct a perpendicular bisector, draw a line segment. From each end of the line segment, draw arcs above and below which intersect from each side. Be sure to maintain the same radius on each. Where the arcs intersect above and below, mark points. Connect these two points. This is a perpendicular bisector.

To prove theorems about parallel lines, use angle relationships. For instance, when two parallel lines are cut by a transversal, specific angle are congruent. When these relationships are congruent, you must have parallel lines:

  • Alternate Interior
  • Alternate Exterior
  • Corresponding Angles
  • Same side interior add to 180
7 0
3 years ago
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