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3 years ago

Find the value of (3 + 4)2

Mathematics

1 answer:

elena55 [62]3 years ago

6 0

Answer:

Step-by-step explanation:

We solve this by using 2 to open the bracket

(3+4)2 is the same as 2(3+4)

2(3)+2(4)

=6+8

=14

(3+4)2 is the same as 2(3+4)

So we can solve the one inside the bracket first

=2(7)=14

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Answer:

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Explanation:

The diagram representing the question is shown in the attached image

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Let x1 = 12, y1 = 15, and y2 = 3. Let y vary inversely with x. Find x2.

Ostrovityanka [42]

We have that an inverse variation in a function is given by:
$y = k / x
$
We must find the value of the constant k.
To do this, we substitute the values of x1 = 12, y1 = 15.
We have then:
$15 = k / 12
$
Clearing k we have:
$k = (15) * (12)

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Substituting the value of k we have that the inverse variation is:
$y = 180 / x
$
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$
Clearing x2 we have:
$x2 = 180/3$
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Answer:
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