The arena wants to estimate the previous two month’s ticket-sale income. In total, 71,115 people attended different events at the arena. The average ticket price is around $21.15. Estimate the arena’s ticket sale income for the previous two months by rounding the two figures before carrying out the calculation. 

The estimated income for the previous two months is 
​

$1504083

Step-by-step explanation:

Number of people that attended events at the arena = 71115

Average ticket price = $21.15

The arena’s ticket sale income for the previous two months will be:

= 71115 × $21.15

= $1504083

$1504083

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option a, c,d are correct.

step-by-step explanation:

from the given figure, it is given that z is equidistant from the sides of the triangle rst, then from triangle tzb and triangle szb, we have

tz=sz(given)

bz=zb(common)

therefore, by rhs rule,δtzb ≅δszb

by cpctc, sz≅tz

also, from δctz and δasz,

tz=sz(given)

∠tcz=∠saz(90°)

by rhs rule, δctz ≅ δasz, therefore by cpctc, ∠ctz≅∠asz

also,from δasz and δzsb,

zs=sz(common)

∠zbs=∠saz=90°

by rhs rule, δasz ≅δzsb, therefore, by cpctc, ∠asz≅∠zsb

hence, option a, c,d are correct.