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4 years ago

Two ways to write a algebraic expression of n-5

Mathematics

2 answers:

Advocard [28]4 years ago

6 0

Two ways to write a algebraic expression of n-5:

n + (-5)
or
-5 + n
hope it helps

deff fn [24]4 years ago

5 0

-5 + n is another way to write the expression.

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A circle is shown. Secant P N and tangent M N intersect at point N outside of the circle. Secant P N intersects the circle at po

daser333 [38]

Answer:

$PQ=5\ units$

Step-by-step explanation:

we know that

The Intersecting Secant-Tangent Theorem, states that : If a tangent segment and a secant segment are drawn to a circle from an exterior point, then the square of the measure of the tangent segment is equal to the product of the measures of the secant segment and its external secant segment.

In this problem

$MN^2=(PN)(QN)$

we have

$MN=6\ units\\PN=PQ+QN=(x+4)\ units\\QN=4\ units$

substitute the given values

$6^2=(x+4)(4)$

solve for x

$36=4x+16\\4x=36-16\\4x=20\\x=5\ units$

therefore

$PQ=5\ units$

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Answer:

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