Answer:
option 2
Step-by-step explanation:
the cosine rule is
cos A = b² + c² - a² / 2bc
so, A is x°
a is 41
b is 37
c is 63
solving the equation will give you the value of x°
Answer:
<h3>There are no solutions.</h3>
Step-by-step explanation:
<u>Questions:</u>
- Solve: 5.6= 3.1 – 12.5|1 – 0.8x|
<u>To find:</u>
<u>Solutions:</u><u>
</u>
- 5.6= 3.1 – 12.5|1 – 0.8x|
First, do switch sides.
![\Longrightarrow:\sf{3.1-12.5\left|1-0.8x\right|=5.6}](https://tex.z-dn.net/?f=%5CLongrightarrow%3A%5Csf%7B3.1-12.5%5Cleft%7C1-0.8x%5Cright%7C%3D5.6%7D)
<u>Multiply by 10 from both sides.</u>
![\Longrightarrow: \sf{3.1*10-12.5|1-0.8x|*10=5.6*10}](https://tex.z-dn.net/?f=%5CLongrightarrow%3A%20%5Csf%7B3.1%2A10-12.5%7C1-0.8x%7C%2A10%3D5.6%2A10%7D)
<u>Solve.</u>
31-125|1-0.8x|=56
<u>Subtract by 31 from both sides.</u>
![\Longrightarrow: \sf{31-125\left|1-0.8x\right|-31=56-31}](https://tex.z-dn.net/?f=%5CLongrightarrow%3A%20%5Csf%7B31-125%5Cleft%7C1-0.8x%5Cright%7C-31%3D56-31%7D)
<u>Solve.</u>
![\Longrightarrow: \sf{-125\left|1-0.8x\right|=25}](https://tex.z-dn.net/?f=%5CLongrightarrow%3A%20%5Csf%7B-125%5Cleft%7C1-0.8x%5Cright%7C%3D25%7D)
<u>Divide by -125 from both sides.</u>
<u>Solve.</u>
![\Longrightarrow: \sf{\dfrac{-125\left|1-0.8x\right|}{-125}=\dfrac{25}{-125}=\boxed{\sf{No\ solutions.}}}](https://tex.z-dn.net/?f=%5CLongrightarrow%3A%20%5Csf%7B%5Cdfrac%7B-125%5Cleft%7C1-0.8x%5Cright%7C%7D%7B-125%7D%3D%5Cdfrac%7B25%7D%7B-125%7D%3D%5Cboxed%7B%5Csf%7BNo%5C%20solutions.%7D%7D%7D)
- <u>Therefore, the correct answer is "D. There are no solutions."</u>
<u></u>
I hope this helps, let me know if you have any questions.
Answer:
b
Step-by-step explanation:
-a-(a-b)
Distribute the negative sign to get -a+a+b
-a cancels out a, and you're left with b.
Answer:
9/12
Step-by-step explanation:
4 times 3 is 12, so 3 times 3: will equal 9
Answer:
first 1/4, second 0.4, third 0.5