B :81 EXPLANATION
The angle with the greatest measure corresponds to the longest:
Since we know the three side lengths, we use the cosine rule to obtain;
{a}^{2} = {b}^{2} + {c}^{2} - 2bc \cos(A)
where a=21, b=18 and c=14
{21}^{2} = {18}^{2} + {14}^{2} - 2 \times 18 \times 14\cos(A)
44 1= 324+ 196 - 504\cos(A)
44 1= 520 - 504\cos(A)
44 1 - 520 = - 504\cos(A)
- 79 = - 504\cos(A)
\cos(A) = 0.1567
A = \cos ^{ - 1} (0.1567) = 80.98 \degree
Answer:
Using Math.
Step-by-step explanation:
You solve it using math.
See, you should have been more specific with your question, maybe said "What is the answer" not "How do I solve".
But I guess I'll help you out bro
<em>Multiply</em> both sides by 6
that gives you -x>18
then <em>multiply</em> both sides by -1
which means you gotta <u>flip the sign</u>
so final answer is x<-18
Answer:
Yes, ratios of blue paint to yellow paint form a proportional relationship
Step-by-step explanation:
In case of the first person:
Number of blue parts = 2
Number of yellow parts ![=3](https://tex.z-dn.net/?f=%3D3)
In case of another person:
Number of blue parts ![=4](https://tex.z-dn.net/?f=%3D4)
Number of yellow parts ![=6](https://tex.z-dn.net/?f=%3D6)
Ratio of blue parts ![=2:4=1:2](https://tex.z-dn.net/?f=%3D2%3A4%3D1%3A2)
Ratio of yellow parts ![=3:6=1:2](https://tex.z-dn.net/?f=%3D3%3A6%3D1%3A2)
As ration of blue parts is equal to the ratio of yellow parts, ratios of blue paint to yellow paint form a proportional relationship
Answer:
x, y
2, 2
4, 3
7, 4.5
9, 5.5
Step-by-step explanation:
matching input / output values.
insert each values into the equation.
1. x y = (x)/2 + 1
2. 2 y = (2)/2 + 1 y = 2
3. 4 y = (4)/2 + 1 y = 3
4. 7 y = (7)/2 + 1 y = 4.5
5. 9 y = (9)/2 + 1 y = 5.5
therefore,
x, y
2, 2
4, 3
7, 4.5
9, 5.5
i hope the above solution is what you are lookin'
Yeah a good way to do reflections is to remember a is the x coordinate b is the y coordinate
X- axis (a, -b)
Y - axis (-a, b)
Y = x (b, a)
Y = - x (- b, -a)