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monitta
3 years ago
6

I really need help with this

Mathematics
2 answers:
motikmotik3 years ago
8 0
It's very simple if you do the math the exact answer would be -12/13
katen-ka-za [31]3 years ago
3 0
No problemo dude. So what do you know about sin θ·cot θ? Well, cot θ = cosθ/sinθ. Hence, the sin θ cancels out and what do you know? You are solving for cos θ. Now, you know that the quadrant is II (2). Hence, cos is also negative. So, tan θ = opp/adj = -(5/12). So, cos θ = adj/hyp which is just -12/13.  
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Liwen and Celina shared some plants in a ratio of 5:6. Celina decided to give Liwen 2/3 of her plants, which left her with 21 fe
djyliett [7]

Answer: 231

<u>Explanation:</u>

Liwen    Celina

   5x          6x

5x - 21 = (\frac{2}{3})6x

5x - 21 = 4x

<u>-4x +21</u>   <u>-4x +21 </u>

  x        =        21


Liwen: 5x   = 5(21)   = 105

Celina: 6x   = 6(21)   =<u> 126</u>

                       Total:   231                    

6 0
3 years ago
A pattern calls for 2 1 over 4 yards of material and 1 1 over 4 yards of lining. How much total fabric is needed
Arada [10]
2 1/4+1 1/4=3 1/2
or 3.5 (3 and a half yards. )
3 0
3 years ago
If y is directly proportional to x, and y = 5 when x = 2, what is the value of y when x = 6?
Korolek [52]

it could be 2.2 because every 5 you get 2 so it would be 10 and 4 so when y=6 then x should be 2.2.

3 0
3 years ago
Read 2 more answers
Perform the indicated operation 5 1/6 - 2 2/3
goldenfox [79]

Answer:

2½

Step-by-step explanation:

First find the Least Common Denominator [LCD], which is 6, then convert 5⅙:

5⅙ → 4 7⁄6

5 \frac{1}{6}  - 2 \frac{2}{3}  = 4 \frac{7}{6}  -  2 \frac{4}{6}  = 2 \frac{3}{6}  = 2 \frac{1}{2}

You see, we regrouped 1 from 5⅙ to make sure that the top mixed number had a higher value than the bottom mixed number, so it is much easier to work with.

I am joyous to assist you anytime.

7 0
3 years ago
Math Solve the equation:-
Katena32 [7]

Answer:

y = -27

Step-by-step explanation:

  • Multiply the entire equation by 6

         \sf 6*\dfrac{y+1}{3}-6*\dfrac{3y-1}{6}=6*5\\\\\\

             2*(y + 1) - (3y - 1 )    = 30

  •  Multiply (y +1) by 2 and (3y - 1) by (-1)

          2y + 2 - 3y + 1 = 30

  • Isolate y term by taking the constant term to RHS

                  2y - 3y = 30 - 2 - 1

  •  Combine like terms

                        -y      = 27

                             y = -27

3 0
2 years ago
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