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Pavlova-9 [17]
3 years ago
11

please I need help. YOU BE THE TEACHER Your friend finds the difference. 7-(-12) = 7+ 12 = 19 Is your friend correct? yes or no

Explain your reasoning​

Mathematics
2 answers:
deff fn [24]3 years ago
5 0
Yes. a negative subtracting a negative equals a positive, therefore it would be 7+12 which would equal 19. your friend is correct.
Rashid [163]3 years ago
4 0

Answer:

Yes.

Step-by-step explanation:

Yes it is correct.

When any bracket is opened by "-" sign then the sign inside the bracket changes.

Here,

→7-(-12)

→7+12

→19

In the above question the bracket is opened by "-' and the sign of 12 is also negative. So, -×- changes into +.

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#1. Which is equal to z3 8? A. (z - 2)(z^2 - 2z - 4). B. (z + 2)(z^2 - 2z + 4) C.(z - 2)(z^2+ 2z + 4). D. (z + 2)(z^2+ 2z - 4) #
tankabanditka [31]
#1. B
<span>(z * z^2 + z * 2z + z * 4) – (-2 *z^2 – (-2) 2z – (-2) 4)
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<span>(x + y)(x + 2)
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#4. D.
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3 years ago
If 5(2x - 1) = 35, then x =​
SIZIF [17.4K]

Answer:

x = 4

Step-by-step explanation:

Given

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2x = 8 ( divide both sides by 2 )

x = 4

5 0
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