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lara31 [8.8K]
3 years ago
6

Helppp!!!! please!!!

Mathematics
2 answers:
lianna [129]3 years ago
7 0

Answer:

HEY MATE YOUR ANSWER IS

1A

2C

3B

<h2>HOPE IT HELPS YOU </h2>
ch4aika [34]3 years ago
3 0

1 looks like it's going to be C but dont depend on it yet,

2 looks like A, I might be wrong sense it's been awhile.

didnt see 3 but it looks to be B.

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1 point
Ber [7]
15
Explanation:
you just divide 90 by 6
6 0
2 years ago
I just need no. a please help me to prove this. ​
OleMash [197]

Answer:  see proof below

<u>Step-by-step explanation:</u>

Given: A + B + C = π    and         cos A = cos B · cos C

scratchwork:

  A + B + C = π

               A = π - (B + C)

         cos A = cos [π - (B + C)]                              Apply cos

                    = - cos (B + C)                                    Simplify

                    = -(cos B · cos C - sin B · sin C)          Sum Identity

                    = sin B · sin C - cos B · cos C               Simplify

cos B · cos C = sin B · sin C - cos B · cos C               Substitution

2cos B · cos C = sin B · sin C                                        Addition

                     2=\dfrac{\sin B\cdot \sin C}{\cos B \cdot \cos C}                                     Division

                     2 = tan B · tan C

\text{Use the Sum Identity:}\quad \tan(B+C)=\dfrac{\tan B+\tan C}{1-\tan B\cdot \tan C}

<u>Proof LHS → RHS</u>

Given:                              A + B + C = π

Subtraction:                     A = π - (B + C)

Apply tan:                  tan A = tan(π - (B + C))

Simplify:                               = - tan (B + C)

\text{Sum Identity:}\qquad \qquad \qquad =-\bigg(\dfrac{\tan B+\tan C}{1-\tan B\cdot \tan C}\bigg)

Substitution:                        = -(tan B + tan C)/(1 - 2)

Simplify:                               = -(tan B + tan C)/-1

                                            = tan B + tan C

LHS = RHS:   tan B + tan C = tan B + tan C  \checkmark

5 0
3 years ago
Find the distance between each pair of numbers on the number line; then find the coordinate of their midpoint.
quester [9]

Answer:

d = 1 7/24 or 31/24;  midpoint would be half of that,or 31/48

Step-by-step explanation:

Since distance is absolute value, add 2/3 and 5/8 to get the entire distance.  Midpoint is that distance divided by 2.

4 0
2 years ago
Read 2 more answers
Need number 12 plz help
dlinn [17]
I think its letter A
6 0
2 years ago
Read 2 more answers
Number 6 plz plz plz help
vagabundo [1.1K]

you could tell if it is even or odd by how many number are odd and how many are even...majority wins...

13 odd

45 odd

24 even

17 odd

hope i can help,and have a nice day!! :)

7 0
3 years ago
Read 2 more answers
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