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➷ Form an equation with 'x' as the unknown number
7x + 3 = -74
Subtract 3 from both sides:
7x = -77
Divide both sides by 7:
x = -11
The number is -11
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Answer:
1 and 3
Step-by-step explanation:
They are across from each other making them vertical angles.
It's important to say that a conjecture, in mathematics, it's a conclusion based on certain evidence and it's supposed to be true. In this case, we have the conjecture: <em>The difference between any two whole numbers is a whole number. </em>
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When you have a conjecture, the first thing you have to do is to make sure you know the meaning of each part. For example, you have to know what a whole number is. Basically, whole numbers are all the number from 0 to infinite (not decimal, not fractions), it doesn't include negative numbers.
Once you know what a whole is, then you can analyze the conjecture. Notice that the conjecture states that the difference of two whole numbers is a whole number, but if you subtract 2 - 5 you would get -3 which is an integer but not a whole number.
<h2>Therefore, the difference 2 - 5 can be a counterexample of the conjecture, proving that it's not true for all cases possible.</h2>
Answer:
Having the length of a side(noticed with l), the volume of the cube is equal to:
V = l*l*l
V=l^3
To find the numeric value of l: l =
In our problem V = 256
l = sqrt256 = sqrt 2'8 =2 sqrts'2=4sqrt4
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Check the picture below. Bearing in mind that x = -2 is a vertical line.