3 years ago

Which expression is equivalent to 7 (x y)?

Mathematics

2 answers:

Mkey [24]3 years ago

7 0

Answer:

Option three

Step-by-step explanation:

Hope this helps!

Lina20 [59]3 years ago

3 0

Answer:

I think the answer is x (7 y)

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Inessa05 [86]

Answer:

This other side of the triangle is equal to about 11.7 cm

Step-by-step explanation:

In order to find out the third side of the triangle we will just use the Pythagoras Theorem.

$c^{2} =a^{2} + b^{2}$

Since we know the hypotenuse and we know one of the legs, in order to find the second leg we just substitute the values and solve the equation and so we get...

$c^{2} =a^{2} + b^{2}\\19^{2} = 15^{2} + b^{2}\\361 = 225 + b^{2} \\$

$b^{2} = 361 - 225\\b^{2} = 136\\b = \sqrt{136} \\$

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