Then, integer numbers are the set that contains the whole numbers and the negative numbers, so the integer number are like ... -3, -2, -1, 0, 1, 2, 3, ...

Therefore, -648 is an integer number.

Finally, the rational numbers are numbers that can be written as a/b, where a and b are integers.

So, the answer is A because rational numbers contain integer numbers, integer numbers contain whole numbers and -648 is a integer number.

5 0

1 year ago

The area of a triangle is 299 square centimeters. The length of the base is 46 centimeters. What is the height of the triangle?

k0ka [10]

$\begin{matrix}
299=\frac{1}{2}\left(46\right)h\\\\\frac{1}{2}\left(46\right)h=299\\\\23h=299\\\\\frac{23h}{23}=\frac{299}{23}\\\\h=13\\\\h=\mathbf{13cm}
\end{matrix}$

7 0

3 years ago

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Which of the following is equivalent to 2x2 + 9x + 9?

valkas [14]

Answer:

(x+3)(2x+3)

Step-by-step explanation:

Factor:

2x^2+9x+9

=(2x+3)(x+3)

8 0

3 years ago

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How do you solve 5+y=7

ss7ja [257]

In order to solve 5 + y = 7 you have to find the value of (y). In this case you could reverse do problem and do 7 - 5 to get the value of y. 7 - 5 = 2, which means y is equal to 2.

6 0

3 years ago

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