All categories

2 years ago

Help need it done for tomorrow

Mathematics

1 answer:

Gelneren [198K]2 years ago

4 0

Step-by-step explanation:

the law of sines :

a/sin(A) = b/sin(B) = c/sin(C)

with the sides being opposite to the angles.

so,

14/sin(80) = x/sin(60)

x = 14×sin(60)/sin(80) ≈ 12.3cm

You might be interested in

8(3x - 4) = 4x - 2<br> What is x?

Serga [27]

Answer:

x=2/3

Step-by-step explanation:

8 (3x-4)= 4x-2

24x-32= 4x-2

20x=30

x=2/3

4 0

3 years ago

Solve equation <br> √ 13x+27=√ 4x

natima [27]

What you have to do is rearrange the equation by subtracting what is on the right of the equal sign from both sides of the equation

so it would be 4*x-13*x-(27)=0

5 0

2 years ago

PLS HELP ME, PLS THIS IS DUE FIRST CORRECT ANSWER GETS BRAINLIEST

zepelin [54]

Answer: C. 29 3/4

Ok done. Thank to me :>

8 0

2 years ago

Read 2 more answers

Stock A ‘s returns have a standard deviation of 0.5, and stock B’s returns have standard deviation of 0.6.The correlation coeffi

galben [10]

Answer:

The variance of the profile is 0.2179.

Step-by-step explanation:

We are given the following in the question:

$\sigma_A = 0.5\\\sigma_B = 0.6\\\rho_{A,B} = 0.5\\w_A = 70\% = 0.7\\w_B = 30\% = 0.3$

Variance of portfolio is given by:

$w_A^2\sigma_A^2 +w_B^2\sigma_B^2 + 2w_Aw_BCov_{A,B}$

$Cov_{A,B} = \rho_{A,B} \times \sigma_A \times \sigma_B \\=0.5\times 0.5 \times 0.6\\=0.15$

Putting values, we get,

$w_A^2\sigma_A^2 +w_B^2\sigma_B^2 + 2w_Aw_BCov_{A,B}\\=(0.7)^2(0.5)^2 + (.3)^2(0.6)^2 + 2(0.7)(0.3)(0.15)\\=0.2179$

Thus, the variance of the profile is 0.2179.

4 0

3 years ago

Using the x intercept method what are all the real solutions of the equation x^3-8x^2+9x+18=0

Paul [167]

Give me an idea of what you think?

7 0

3 years ago

Help need it done for tomorrow ​

Help need it done for tomorrow