POSSIBLE POINTS. 5 Your company takes orders over the phone. The company's average call time is 4.6 minutes. The graph below shows 4 calls and the difference between the
call time and the company's average call time. For these 4 calls, what is the mean difference between the call times and the company's average call time,
rounded to the nearest 0.1 minute?
(Note: A negative difference indicates the call is shorter than the average.)
a
Difference between Call Time and
Company Average Call Time
(Negative values indicate calls shorter
than company average.)
5 -
4.79
3
5
Call 3
2
0.68
Call 4
Call 2
Call 1
-1.55
-2.32
O-23
O 0.4
O 0.4
O 1.6
O 23

10.4 inches

step-by-step explanation:

2x2x2.6

< xcy ≅ < xby

step-by-step explanation:

in δcax and δbax,

so, δcax ≅ δbax (side-angle-side or sas)

since δcax ≅ δbax, we can conclude < acx ≅ < abx

in δacy and δaby,

so, δacy ≅ δaby (side-angle-side or sas)

since δacy ≅ δaby, we can conclude < acy ≅ < aby

now,

< acy ≅ < aby

=> < acx + < xcy ≅ < abx + < xby

=> < acx + < xcy ≅ < acx + < xby   (since < acx ≅ < abx already proved above)

subtracting < acx from both sides, we get

< acx + < xcy -< acx ≅ < acx + < xby -< acx

cancelling out < acx and -< acx from both sides, we get

< xcy ≅ < xby (proved)

answer: cos [   arcsin (3/5) - arccos (1/2) ] =

step-by-step explanation: × = 3/5 = 0.6--> x = 36.87 and x = 180 - 36.87 = 143.13 deg

cos y = 1/2 --> y = +- 60 deg a. cos (x - y) = cos (143.13 - 60) = cos 83,13  

=

0.12

b. cos (36.87 - 60) = cos (-23.23) = 0.92

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