1. An Irrational Number is a real number that cannot be written as a simple fraction. Irrational means not Rational. - Google
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2. 4.8
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3a.) √40 = 6.3
3b.) 2.6 because ∛8 equals 2
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4. 9
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5. ∛512 = 8
Answer:
A. I and IV
Step-by-step explanation:
I. 4(6 - x)
II. 4 + (6 - x)
III. 6(4 - x)
IV. (6 - x) + (6 - x) + (6 - x) + (6 - x)
Let's keep them in the simplest expressions.
I. 4(6 - x)
4(6) - 4x
24 - 4x
II. 4 + (6 - x)
4 + 6 - x
10 - x
III. 6(4 - x)
6(4) - 6x
24 - 6x
IV. (6 - x) + (6 - x) + (6 - x) + (6 - x)
6 - x + 6 - x + 6 - x + 6 - x
6 + 6 + 6 + 6 - x - x - x - x
24 - 4x
Only I and IV have the same result.
(2, 5) and (5, 8) are the solutions to the system of equations.
We have
and
.
Let's substitute
for
in
. We get
. Now, factor to solve for
.
Now, substitute each value of
into one of the original equations to solve for
.
