3 years ago

Determine the intervals of the domain over which the function is continuous.

Mathematics

1 answer:

Semenov [28]3 years ago

8 0

Answer:

Step-by-step explanation:

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<h3>Answer: x = 60</h3>

Work Shown:

a+x = 180

120+x = 180

x = 180-120

x = 60

Side note: angles 'a' and x are same side interior angles, which are supplementary whenever we have parallel lines like this.

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Enny White is shopping for CDs. She decides to purchase 3 movie soundtracks. The music store has 7 different movie soundtracks i

zubka84 [21]

Answer:

$35\ ways$

Step-by-step explanation:

we know that

Combinations are a way to calculate the total outcomes of an event where order of the outcomes does not matter.

To calculate combinations, we will use the formula

$C(n,r)=\frac{n!}{r!(n-r)!}$

where

n represents the total number of items

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In this problem

$n=7\\r=3$

substitute

$C(7,3)=\frac{7!}{3!(7-3)!}\\\\C(7,3)=\frac{7!}{3!(4)!}$

simplify

$C(7,3)=\frac{(7)(6)(5)4!}{3!(4)!}$

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