<h2>
Greetings!</h2>
Answer:
2x - 2 = 14
Step-by-step explanation:
Let x be the amount of hats Fran has, if Elena has -2 hats, then this can be shown by x - 2
So then
x + x - 2 = 14
2x - 2 = 14
You haven't asked this but to find the amount of hats they have, move the -2 over to the other side making it a +2:
2x = 14 + 2
2x = 16
x = 8
So Fran has 8 hats and Elena has 6 hats.
<h2>Hope this helps!</h2>
If you represent the problem in a diagram, you will form a triangle with 3 known length of the sides. When you are given all sides, and you are asked to find an angle, you can use the cosine law.
b^2 = a^2 + c^2 - 2ac*cosB
1.4^2 = 1.9^2 + 1^2 - 2(1.9*1)(cosB)
B = 45.78°
If you’re asking what -11 times -6 is it’s going to be 66!
Answer:
sinѲ = -1/√5 or -√5/5
Step-by-step explanation:
On the Cartesian plane, we have radius (r) and angle (Ѳ) theta.
On the Cartesian plane we also have x, y where:
x = r cosѲ .......Equation 1
and y = r sinѲ ........Equation 2
r = √x² + y²
In the question we are given points (2,-1)
Where x = 2 , y = -1
We would solve for r by substituting 2 for x and -1 for y
r = √ 2² + -1²
r = √ 4 + 1
r = √5
In the question, we were asked to find what sin theta (Ѳ) is. Hence, we would be substituting √5 for r in Equation 2
y = r sinѲ
Where y = -1 and r = √5
-1 = √5 sinѲ
Divide both sides by √5
sinѲ = -1/√5
We can also represent sin Ѳ in a proper form, by multiplying both top and bottom by √5
sinѲ = -√5/5
Therefore, sinѲ = -1/√5 of -√5/5
Answer:
8x+5w+4
Step-by-step explanation:
Add similar numbers together
