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aleksklad [387]
3 years ago
15

The difference between twice a number and three is equal to six decreased by the number find the number

Mathematics
1 answer:
devlian [24]3 years ago
5 0
Translate the English to Math language:

Let x be that number


2x -3 = x-6 solve for x ; x=-3
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Complete the description of the piecewise function graphed below. Use interval notation to indicate intervals.
Gemiola [76]

Answer:

{ -2 if x ∈ -4 < x < -3

{ -5 if x ∈ -3 ≤ x < 2

[ 5 if x ∈ 2 ≤ x < 5    

Step-by-step explanation:

From the graph, we have;

{ -2 if x ∈ -4 < x < -3

For the next inequality line at y = -5, we have;

1) The inequality line, starts with an open circle on the left at x = -3, which is equivalent to less than or equal to symbol, ≤ as -3 ≤ x because the point x =-3 is the left boundary.  The inequality line extends to the point x = 2, where we have a closed circle (on the right), which is equivalent to a x ≤ 2 with the 2 on the right hand side because, the 2 is the right boundary of the inequality

2) The inequality can be summarized as starting from x = -3 extends to x = 2

3) As stated in point 1) the point x = 3, we have -3 ≤ x and at point x = 2, we have x ≤ 3 which can be combined as  -3 ≤ x < 2, to give;

{ -5 if x ∈ -3 ≤ x < 2

For the next inequality line at y = 5, we have;

1) The inequality line, starts with an open circle on the left at x = 2, which is equivalent to less than or equal to symbol, ≤ as 2 ≤ x because the point x =2 is the left boundary.  The inequality line extends to the right to reach point x = 5, where we have a closed circle (on the right), which is equivalent to a x ≤ 5 inequality, with the 5 on the right hand side because, the 5 is the right boundary of the inequality

2) The inequality can be summarized as starting from x = 2 extends to x = 5

3) As stated in point 1) the point x = 2, we have 2 ≤ x and at point x = 5, we have x ≤ 5 which can be combined as  2 ≤ x < 5, to give;

[ 5 if x ∈ 2 ≤ x < 5.

7 0
3 years ago
Please answer this math question
IgorC [24]
0.
1/2 = 1/2
No need to add anything
8 0
3 years ago
If y = -12 when x = -9, find y when x = -4
mihalych1998 [28]
-12/-9=y/-4
cross multiply

-9y=48
divide by 9 on each side 

y= -5.33
7 0
3 years ago
PLS HELP WILL MARK AS BRAINLIEST
soldier1979 [14.2K]

Answer:

26. the y intercept is -6

27. the y intercept is 2

28. the y intercept is -3

29. I cant answer because it is cut off in the picture...

Step-by-step explanation:

These equations follow a simple formula- the slope formula

y=mx+b

In this formula:

b is the y intercept

m is the slope that is multiplied by x

hope this helps:)

please crown me brainliest!!!

3 0
2 years ago
Simplify 4 + (-3) - 2 times (-6)
iVinArrow [24]

Step-by-step explanation:

= 4 + ( - 3) - 2 ( -  6)

here ( + ) × ( - ) = ( - )

= 4 - 3 + 12

= 4 + 12 - 3

= 16 - 3

= 13

8 0
1 year ago
Read 2 more answers
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