A teacher buys 4.25 ounces of a compound for an experiment. The compound costs $2.32 per ounce. The teacher pays with a $10 bill. How much change does the teacher receive?

Given:

Compound for an experiment = 4.25 ounces

Compound costs = $2.32 per ounce.

Teacher pays = $10

To find:

The amount of change teacher receive.

Solution:

Cost of 1 ounce of compound = $2.32

Cost of 4.25 ounce of compound = 4.25 × $2.32

                                                        = $9.86

It is given that, the teacher pays with a $10 bill.

Amount of change = $10 - $9.86

                                 = $0.14

Therefore, the teacher receive $0.14 change.

(sin 42)/31. = sinx)/37

sinx = 37 (sin42)/31

= 37× 0.66/31 = 0.787

x= 51.9

other angle opposite to y = 180-51.9-42

= 180- 93.9 =86.1

so

sin42)/31 = sin 86.1)/y

0.021 = 0.997 /y

y= 0.997/0.021 =47.47

nswer: a   y-axis

step-by-step explanation: