Hello,
Answer:
The last graph (2;3)
Step-by-step explanation:
2x + 3y = 12
2x – 3y = 0
2x + 3y = 12
2x = 3y
3y + 3y = 12 ⇔ 6y = 12 ⇔ y = 12/6 = 2
2x + 3 × 2 = 12 ⇔ 2x + 6 = 12 ⇔ 2x = 6 ⇔ x = 6/2 = 3
Answer:
80%
Step-by-step explanation:
S is a subset of U, so all of the elements of S must be also elements of U
If U was {letters}, 4, 9, ? would not belong there
If U was {numbers }, x, y, ? would not belong to U
If U was {punctuation marks }, 4, 9, x, y would not be in U
all the elements of S are in U={ keys on a keyboard}
Answer: U={ keys on a keyboard}
<h3>
Answer is 5(6a+7)</h3>
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The GCF is 5, which can be factored out of the expression
Note how
30a = 5*6a
35 = 5*7
So we see the common factor between the two terms. You use the distribution property to pull out that 5. If you were do distribute the 5 back in, you'd get
5(6a+7) = 5*6a+5*7 = 30a+35
Answer:
2-11i
Step-by-step explanation:
-2-5i - (-4+6i)
Distribute the minus sign
-2-5i +4 -6i
Combine the real parts
-2+4 = 2
Combine the imaginary parts
-5i-6i = -11i
the complex number is
2-11i
