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3 years ago

I need to know what does “x” equal.

Mathematics

1 answer:

Lisa [10]3 years ago

3 0

Answer:

x = 0.12

Step-by-step explanation:

3 / 5^x = 0.12

to find out what x equals, plug numbers into x to see what it equals

if x = 2, then

3/25 = 0.12

solve

0.12 = 0.12

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Please help asap! the problem is in the picture

ladessa [460]

Given:

$AB=6\ BC=r,\ CD=r,\ AD=12$ .

To find:

The value of r.

Solution:

We have,

$AB=6\ BC=r,\ CD=r,\ AD=12$ .

We know that the radius is perpendicular to the tangent at the point of tangency

AD is the tangent and CD is the radius. So, CD is perpendicular to AD at point D, i.e., $m\angle D=90^\circ$ .

Using Pythagoras theorem, we get

$AC^2=AD^2+CD^2$

$(6+r)^2=12^2+r^2$

$36+12r+r^2=144+r^2$

$12r=144+r^2-36-r^2$

On further simplification, we get

$12r=108$

$r=\dfrac{108}{12}$

$r=9$

Therefore, the value of r is 9.

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2 years ago

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Archy [21]

Answer:

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Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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