Answer:
A. 20
B. 11 + 3tt
Step-by-step explanation:
A. 11 + 3(3) = 20
B. 11 + 3(tt)
Consider a set M, and an operation *.
Let a and b be in M, then M is closed under operation * if :
a*b, and b*a produce an element of M
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The set of negative numbers (set M) is not closed under subtraction (the operation *).
Consider 2 numbers a=-9 and b=-6 which certainly are in M.
-9*(-6) = -9-(-6)=-9+6=-3 ∈ M (note that * is the regular subtraction -)
(-6)*(-9)=-6-(-9)=-6+9=3 ∉ M
Answer:
Pythagorean Theorem: + = OR - =
Step-by-step explanation:
You can use it to solve a side of a triangle when you have 2 of the sides of the triangle. I hope this helps! Please mark me brainliest!
B.
There are no black pieces of paper in her closet so it’s impossible to get black
Answer:
m = 3; b = -12
Step-by-step explanation:
In order to answer the question definitively, we must assume you intend for the equation to be an identity.
6(2x -5) -(mx +2) = 9x +b
12x -10 -mx -2 = 9x +b
Equating x terms:
12x -mx = 9x
12 -m = 9 . . . . . . divide by x; next, add m-9
12 -9 = m = 3
Equating constant terms:
-10 -2 = b
-12 = b