Answer:
A
Step-by-step explanation:
Hello, option B is correct
<h3>

</h3>
Answer:
Solution given
Cos
consider Pythagorean theorem

Subtracting
both side

doing square root on both side we get

Similarly

Substituting value of 
we get

<h3>Solving numerical</h3>




Since
In IVquadrant sin angle is negative

Answer:
its 24
Step-by-step explanation:
i got it right on ed 2020
9514 1404 393
Answer:
375 hamburgers
Step-by-step explanation:
Let h represent the number of hamburgers. Then h+63 is the number of cheeseburgers, and the combined total is ...
h +(h +63) = 813
2h = 813 -63 = 750
h = 750/2 = 375
375 hamburgers were sold on Saturday.
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<em>Additional comment</em>
In a "sum and difference" problem like this, the smaller number is half the difference between the sum and the difference. h = (813 -63)/2 = 375. This generic solution applies to all "sum and difference" problems.
When you collect terms, for
the first one you get
-x² -3xy +4 = -x² -3xy +4 . . . . . . equivalent equations.