Homework assignments
Elle Yav à
04/1920
2020SP MATH
1316-23005
Time Remaining: 02:14:38 Submit Test
This Test: 25 pts possible
Test: Test #3 - Chapters 5 & 6
This Question: 1 pt
20 of 25 (15 complete)
The pressures caused by pure tones on the eardrum are sinusoidal. The change in pressure P in pounds per square foot on a person's eardrum from a pure tone at
time t in seconds can be modeled using the equation P A sin (2x ), where is the frequency in cycles per second, and is the phase angle. When P is positive,
ve and the
005
there is an
increase in pressure and the eardrum is pushed inward, when P is negative, there is a decrease in pressure and the
eardrum is pushed outward. A graph of a tone P(1) .005 sin 2x(273.62)t is shown to the right. Complete parts
(a) through (c) below.
(a) Determine algebraically the values oft for which P o ver (0.005).
The solution set is
(Round to five decimal places as needed. Use a comma to separate answers as needed.)
(b) From the graph and your answer in part (a), determine the interval for which Psover (0.005).
(Type your answer in interval notation)
(c) Would an eardrum hearing this tone be vibrating outward or inward when P >0?
o
inward
Click to select your answer(s).

total amount of money that he should pay if he has not used his duty free exemption is $98

step-by-step explanation:

given a united states citizen returning to the states declares the following items at the customs office: 3 shirts at $8.50 each 2 dresses at $27.50 each 1 pair of gold cuff links at $17.50 per pair. we have to find how much he pay

cost of 3 shirts if one cost at $8.50 is

cost of 2 dresses if one cost at $27.50 is  

cost of 1 pair of gold cuff at $17.50

so, total amount of money that he should pay if he has not used his duty free exemption is   $25.5+$55+$17.50=$98

total amount to be paid = $19.5

step-by-step explanation:

given ,

original price = $25.99

discount = 25%

discount amount = 25% of original price

discount amount = 25/100   * 25.99

discount amount = $6.49

hence , the total amount to be paid = original price - discount amount

                                                            = $25.99 - $6.49

                                                            =$19.5

total amount to be paid = $19.5

solution:

we have to construct

∠m nt ≅ ∠p qr

the steps to draw this construction are

step 1: use a compass to draw an arc from point q which intersects the side pq at point a and the side qr at point b.

step 2: draw a segment nt and use the same width of the compass to draw an arc from point n which intersects the segment nt at a point x.

step 3:

step 4: join points n and y using a straightedge.

step 3:

option (d).maintaining the same width of the compass as ab, draw an arc from point x such that it intersects the arc drawn from n in a point y.

to draw   congruent angles , 1. width of compasses while drawing two angles should be same i.e from point at which angle has to be drawn, 2.the distance between the two points where the compass intersects the two sides should be same while drawing any two congruent angles.

x = -4

step-by-step explanation:

- 20 - 4(x + 3) = 4x

=> -20 - 4x - 12 = 4x

=> - 32 -4x = 4x

=> -32 = 4x + 4x

=> - 32 = 8x

=> -32/8 = x

=> -4 = x