SOLUTION
Given the question in the image, the following are the solution steps to answer the question.
STEP 1: Explain the formula to use
Using the cosine rule which states that:
![z^2=x^2+y^2-2xy\cos Z](https://tex.z-dn.net/?f=z%5E2%3Dx%5E2%2By%5E2-2xy%5Ccos%20Z)
STEP 2: Write the given sides
![x=4,y=6,Z=41^{\circ},z=?](https://tex.z-dn.net/?f=x%3D4%2Cy%3D6%2CZ%3D41%5E%7B%5Ccirc%7D%2Cz%3D%3F)
STEP 3: Find the value of z
![\begin{gathered} By\text{ substitution,} \\ z^2=4^2+6^2-2(4)(6)\cos41 \\ z^2=16+36-48cos41 \\ z^2=52-36.22605985 \\ z^2=15.77394015 \\ z=\sqrt{15.77394015} \\ z=3.971641997 \\ z\approx4.0 \end{gathered}](https://tex.z-dn.net/?f=%5Cbegin%7Bgathered%7D%20By%5Ctext%7B%20substitution%2C%7D%20%5C%5C%20z%5E2%3D4%5E2%2B6%5E2-2%284%29%286%29%5Ccos41%20%5C%5C%20z%5E2%3D16%2B36-48cos41%20%5C%5C%20z%5E2%3D52-36.22605985%20%5C%5C%20z%5E2%3D15.77394015%20%5C%5C%20z%3D%5Csqrt%7B15.77394015%7D%20%5C%5C%20z%3D3.971641997%20%5C%5C%20z%5Capprox4.0%20%5Cend%7Bgathered%7D)
Hence, the indicated length is 4.0
Answer:
B. City P is above sea level and City R is below sea level
Step-by-step explanation:
A. City R is negative meaning it is below sea level however City Q is 0 meaning it is at sea level, so this statement is false.
C. Once again, City P is positive meaning it is above sea level but City Q is 0 meaning it is at sea level, so this statement is false.
D. Like before, City P is above sea level and City Q is at sea level not below, so this is, once again, false.
True. maths is applied in every day life for instance in science and accounting and as well as when daily with money
Answer:
number 3 is 30, number 4 is 46 and the last one is 55
Answer:
Last one
Step-by-step explanation:
The function f is:
● f (x)= √(4x+6)
The function g is:
● g(x) = √(4x-6)
Add them together:
● f+g (x)= √(4x+6 )+ √(4x-6)