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icang [17]
3 years ago
14

Please help ASAP I have no clue how to do this

Mathematics
1 answer:
MariettaO [177]3 years ago
8 0
These piecewise functions are several graphs pieced together. Where one ends the other begins.

The greater than (> or <) symbol means an open circle at that point. If it is greater than or equal to (>=) then you put a closed solid circle.

start with the first one
-2x + 3 where -4 =< x < -1
put in these values for x
solid circle at (-4, 11)
open circle at (-1, 5)
graph is a straight line so connect the circles

next one
|2x -1| where -1 < x < 2
absolute value graphs are V-SHAPED where y is always positive. solve for vertex (x, 0)
0 = 2x -1
x = 1/2
(1/2, 0) vertex of V
solve for endpoints, both are open circles
(-1, 3)
(2, 3)

next one is easy. it's just a solid point
When y = 5 ; x = 2
(2,5)

last is a parabola, or just half of a parabola, aka bowl shaped graph
3x^2 - 1 when x > 2
plug in x = 2
open circle at (2, 11)
you can put in another x value greater than 2 to find a second point to help draw the graph but it's just a curve upward that continues with an arrow, no endpoint
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Can someone pls help lol I rlly do need help on this :)
Fittoniya [83]

Answer:

a+51=90

a+51+90=180

39

Step-by-step explanation:

hope this helped :)

7 0
3 years ago
Mindy can a drive a total of 375 miles on a full tank of gas, which is 25 gallons. Based on this information, what is the consta
stepan [7]

Answer:

15

Step-by-step explanation:

\frac{25}{375} = \frac{1}{x}

Cross multiply to get 25x = 375

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2 years ago
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S_A_V [24]

Explanation:

There are many versions of the taxonomy diagram for quadrilaterals. The details depend on the particulars of the definitions you use. Here, we'll say a parallelogram is a subset of trapezoids. Not all authors would agree.

(2) kite -- two pairs of adjacent same-length sides

(3) trapezoid -- (at least one) pair of parallel opposite sides

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(7) square -- same-length parallel opposite sides and right angles

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3 years ago
What is the variance of 6, 5, 2, 5, 8?
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7 0
3 years ago
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√85 between which two intergers ​
lilavasa [31]

Answer:

I think that it is 9 and 10 because when you simply the number 85 it would be 9.21 which is round by 9

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