Question

What is the area of the triangle to the nearest tenth of a square meter?

Answer 1

@Directrix @bnkilinc

Answer 2

im guessing 52 square maters

Answer 3

these are my answer choices 14.1 m2
24.4 m2
45.9 m2
48.8 m2
@Directrix @bnkilinc

Answer 4

im thinking 48.8?

Answer 5

@Directrix

Answer 6

The area of any triangle is 1/2 * the product of any two sides and the sine of the included angle.

Answer 7

A = 1/2 * 13*8* sin(28 degrees)

Crank that out.

Answer 8

@freshkid944 Crank out 1/2 * 13*8* sin(28 degrees) on Google calculator

Answer 9

@Directrix 24.4125212649

Answer 10

can you help me with this @Directrix In triangle PQR, m∠P = 53º, PQ = 7.4, and PR = 9.6. What is m∠R to the nearest degree?

Answer 11

sorry :( lol

Answer 12

Using the same theorem, Area = (1/2) * 7.4 * 9.6 * sin(53 degrees) =

Answer 13

Crank it out.

Answer 14

@Directrix 28.3675333169

Answer 15

That's what I got.

Answer 16

here are my options though 61º
49º
42º
35º

Answer 17

@Directrix

Answer 18

hey @Directrix are u there? here are my answer choices here are my options though 61º
49º
42º
35º

Answer 19

Where is the question that goes with those answer options?

Answer 20

In triangle PQR, m∠P = 53º, PQ = 7.4, and PR = 9.6. What is m∠R to the nearest degree? @Directrix

Answer 21

We just did that and you gave me a medal.

Answer 22

Oh, wait a minute. I thought we were finding area. Hold on.

Answer 23

@Directrix ok

Answer 24

@Directrix u still there?

Answer 25

I am here. I'm trying to figure out whether we will have to use the Law of Sines or Law of Cosines here. I am thinking.

Answer 26

okay @Directrix

Answer 27

here are the answer choices again :
61º
49º
42º
35º

Answer 28

I'm here and I'm still thinking. I may have to run the answer choices through and work backwards.

Answer 29

okay skip that question @Directrix

Answer 30

what about this question : The 5th term in a geometric sequence is 120. The 7th term is 30. What are the possible values of the 6th term of the sequence? @Directrix

Answer 31

I don't like to skip and not do the work. This is a challenge.

Answer 32

okay can we come back to it because I really gotta get this done @Directrix :)

Answer 33

Move this question to closed and post the geometric sequence question on the open list. I understand you have to get it done.

Answer 34

@Directrix I just did and I tagged you in it :)

Answer 35

I'll mark this question so that I can find it and look at the other. We'll have to look up those formulas for geometric sequences.

Answer 36

okay @Directrix

Answer 37

60 is one possible option.

Answer 38

120 times 1/2
60 times 1/2

Answer 39

your right lol!!! :) thank u

Answer 40

last one question @Directrix What is the 50th term of the sequence that begins −4, 2, 8, 14…?

Answer 41

This triangle is worrying me. Let me come back to it after this sequence thing you just wrote.

Answer 42

okay @Directrix

Answer 43

The 50th term can be found by the following:

first term + (n-1)* d where n = 50 and d is the common difference

-4 + 49*6 = ?

Answer 44

Did you get 290? Sounds a little small.

Answer 45

@freshkid944

Answer 46

@freshkid944 Still here? I'm back on this triangle problem.

Answer 47

that's right @Directrix

Answer 48

I have an equation to try for the triangle problem.

Answer 49

ok @Directrix

Answer 50

@Directrix what is it ?

Answer 51

@Directrix ???

Answer 52

nope , these are the answer choices 61º
49º
42º
35º
@Directrix

Answer 53

@Directrix u there ?

Answer 54

did u see the answer choices ? @Directrix

Answer 55

@freshkid944

49 --> Did you get that?