Which two expressions are equivalent for any value of y?

1 answer:

3 0

The correct answer is letter d.

The reason is because of what each of these statements represent in math.

A number directly outside of a. parentheses means that we have that many groups of everything inside of the parentheses.

9(y + 3) means we have 9 groups of y and 9 groups of 3. This is the same as saying 9y + 27 or 27 + 9y.

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iVinArrow [24]

Answer:

x = $\sqrt{99}$

Step-by-step explanation:

Based on the Pythagoras theorem, where a and b are the legs of the triangle and c is the hypotenuse.

$c^{2}= a^{2} + b^{2} \\c = \sqrt{a^{2} + b^{2} } \\x = \sqrt{7^{2} + (5\sqrt{2})^{2}} \\x = \sqrt{99}$

Therefor x = $\sqrt{99}$

7 0

3 years ago

Please help me please

Anna [14]

Answer:

It's $22.30 and Hi army! Good luck

3 0

4 years ago

Hey can u help me with this

Liula [17]

Answer:

24 cubes

Step-by-step explanation:

First, we need to find the volume of the prism. To do this, we multiply the length by the width by the height, so $1 \cdot 2 \cdot \frac {3}{2} = 3$ . Then, we need to find the volume of one small cube, which has a length, width, and height of $\frac {1}{2}$ , so $\frac {1}{2} \cdot \frac {1}{2} \cdot \frac {1}{2} = \frac {1}{8}$ . Then we divide the volume of the prism by the volume of a cube to find how many could fit, so $3 \div \frac {1}{8} = 24.$