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nata0808 [166]
3 years ago
6

Solve the inequality.

Mathematics
1 answer:
Phoenix [80]3 years ago
3 0
N > -9 is what I got
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PLS HELP THANK UUU!!!
Svetach [21]

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

6 0
3 years ago
The mean age of 5 people in a room is 40 years. A person enters the room. The mean age is now 40. What is the age of the person
ad-work [718]

Answer:

40

Step-by-step explanation:

5 people in the room have  5*40 = 200 years altogether

a new person is X years old.

Now 6 people have (200 + x) years altogether.

Mean age of 6 people  is (200+x)/6. and it is also = 40.

So,

(200+x)/6 = 40

200 + x = 240

x = 40

6 0
3 years ago
The coeffiecient for 6m + 7 is<br> m
Over [174]

Answer:

The coefficient of 6m is 6

Step-by-step explanation:

3 0
3 years ago
Here is part of a bus timetable:
Katyanochek1 [597]
To the magic school with Mrs frizzle
4 0
3 years ago
Read 2 more answers
What is:<br>√36+√256-√49<br>​
pishuonlain [190]

Answer:

15

Step-by-step explanation:

√36 = 6

√256 = 16

√49 = 7

√36 + √256 - √49

= 6 + 16 - 7

= 22 - 7

= 15

4 0
3 years ago
Read 2 more answers
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