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dexar [7]
3 years ago
11

PLS HELP THANK UUU!!!

Mathematics
1 answer:
Svetach [21]3 years ago
6 0

Answer:

47.45754235

31.46697634

Hey do you need to show your work for these? I found an answer key

Step-by-step explanation:

We need to use law of cosines

c²=a²+b²-2abcos(C)

let x= angle xzy

plugging in what we have the equation looks like

17²=22²+20²-2*22*20*cos(x)

289=484+400-880cos(x)

.676136364=cos(x)

x=47.45754235

b.)

The smallest angle should be opposite to the smallest side

Using the law of cosines again we get

9²=13²+17²-2*13*17*cos(x)

81=458-442cos(x)

.852941176=cos(x)

x=31.46697634

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Fofino [41]
TABLE / BOX

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7 0
3 years ago
The cost of labor for servicing cars at B&amp;B Automotive is $50 for each whole hour or for any fraction of an hour. There is a
Masja [62]

Answer:

<h2>d. $250</h2>

Step-by-step explanation:

We can use the equation of a straight line to model the cost of servicing the car.

let the cost be y and the number of hours be x

and the charge per hour is m

y=mx+c

y=50x+25

given that the time is 3.45 hours it is assumed that the charge is for 4 hours since for a fraction of 0.45 hours we are charged $50

y=50(4)+25

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4 0
4 years ago
4.) Mr. Lakey is a taxi cab driver. He earns $5.00 hour plus tips. One week he works 40
Arisa [49]

Answer:

87

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total (T) = $287

time (t) = 40 hr

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3 0
3 years ago
Two similar polygons have areas of 50 and 100 sq. in. Find the ratio of the length of a pair of corresponding sides.
Ainat [17]
In the case that you presented, the ratio is

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x1 : x2 = 1 : √2

^2 means squared

7 0
3 years ago
Read 2 more answers
Find the surface area, please
777dan777 [17]

Answer:

52 cm^2

Step-by-step explanation:

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4 0
3 years ago
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