Answer:
B. Subtract the bottom equation from the top equation.
Step-by-step explanation:
When looking at the two equations:
8x + 8y = 2
8x + 5y = 1
We can easily get rid of the x variable by subtracting the two equations from each other since the terms are equivalent. This would allow us to solve for the y value, which we could plug into the an equation to solve for the x value.
Answer:
c
Step-by-step explanation:
i think it's correct and helping you
Step-by-step explanation:
6 ( 3 - √-16) + √-64 ( 3- √-16)
18 - 6(-4)^2*1/2 + 3 × (-8)^2*1/2 - √1024
18 - 6 (-4) + 3× (-8) - 32
18 + 24 - 24 - 32
18 - 32
-14
Answer:
AC < BC < AB
Step-by-step explanation:
Given: BC = 118
AB = 63*2 = 126
AC = 360 - (BC+AB)
AC = 360 - (118+126) = 116
We know that
the relationship between the 2-dimensional polar and Cartesian coordinates is
r = √(x² + y²)
Θ = tan⁻¹ (y/x)
so
Part a) <span>(2, −2)---------> this point belong to the IV quadrant
</span>r = √(x² + y²)------ r = √(2² + (-2)²)-----> r=√8
Θ = tan⁻¹ (y/x)---- Θ = tan⁻¹ (2/2)----> 45°
remember that the point belong to the IV quadrant
so
Θ=360-45-----> Θ=315°
the answer part A) is
(r,Θ)=(√8,315°)
Part b) (-1, 3)---------> this point belong to the II quadrant
r = √(x² + y²)------ r = √(-1² + (3)²)-----> r=√10
Θ = tan⁻¹ (y/x)---- Θ = tan⁻¹ (3/1)----> 71.57°
remember that the point belong to the II quadrant
so
Θ=180-71.57-----> Θ=108.43°
the answer part B) is
(r,Θ)=(√10,108.43°)