Answer:
A
Step-by-step explanation:
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Since you know Z = 2, you can plug it into:
Y = 5 · Z²
Y = 5 · (2)²
Y = 5 · 4
Y = 20
Now that you know Y = 20, you can plug it into:
X = 2 + 5Y
X = 2 + 5(20)
X = 2 + 100
X = 102
Now that you have X, plug it into "2+2X=?"
2 + 2x = ?
2 + 2(102) = ?
2 + 204 = ?
206 = ?
Don’t say you’re dumb ! we always need help sometimes.
(5x)^2 = ____x^2
distribute the exponent ‘2’ to both terms inside the parentheses.
so it will be (5)^2(x^2)
simplify. 5^2=25, (x^2)=x^2
so the answer is 25x^2
The number that 7 belongs to is a rational number.
<h3>What is a rational number?</h3>
It should be noted that a rational number is a number that is expressed as the ratio of two integers.
In this case, the denominator should not be equal to zero, whereas an irrational number cannot be expressed in the form of fractions.
Rational numbers are terminating decimals but irrational numbers are non-terminating and non-recurring.
Therefore, the number that 7 belongs to is a rational number.
Learn more about numbers on:
brainly.com/question/4619309
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