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Step2247 [10]
3 years ago
7

Which expression is equivalent to (-6+7)(-4)

Mathematics
2 answers:
love history [14]3 years ago
6 0
Here is the answer:(+1) x (-4) = -4

disa [49]3 years ago
3 0
<span>(-6+7)(-4) encloses -6+7 within parentheses, so we MUST perform -6+7 first.  That comes to 1.  

Then we have  ( 1 )(-4), which equals -4  (answer).

Note:  Sounds as tho' several possible answers were given, but you haven't shared them.  Share all parts of every question in the future, OK?  Thx.

</span>
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lord [1]

Answer:

<em>Functions evaluated at x = -1</em>

A. a(-1) = -2(-1) + 3 = 5

B. b(-1) = 0  (as per graph)

C. <u>Find the equation first:</u>

  • m = 4/8 = 1/2
  • c(x) = 1/2x - 4
  • c(-1) = -1/2 - 4 = -4.5

D.  d(-1) = (-1)² - 4 = -3

E. e(-1) = 2 (as per table)

F. f(-1) = 5/2 = 2.5 (as per graph)

G. g(-1) = 2(3)⁻¹ - 2 = 2/3 - 2 = - 1 1/3

H. h(-1) = 2 (as per table)

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8 0
3 years ago
PLEASE HELP ME
irina1246 [14]

Answer:

B) (-1, -2)

Step-by-step explanation:

3x + 1 = x - 1

-3x - 3x

___________

1 = −2x - 1

+1 + 1

_________

2 = −2x

_ ___

−2 −2

x = -1 [Plug this back into both equations above to get the y-coordinate of -2]; -2 = y

I am joyous to assist you anytime.

6 0
3 years ago
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