Answer: 1. 10 2. 18
Step-by-step explanation:
1.) 25% of 40 is 10 so she made 10 free throws.
2.) 150% of 12 is 18 so she made 18 free throws.
2200(.15)=330.00
2200+330=2530
2530(.07)=177.10
2530+177.30=2707.10
Symmetry can be determined visually in a graph. If both graphs are mirror-image of each other, then both of the equations are symmetric. But, you can also determine it analytically through testing the symmetry. These are the rules:
If
f(r, θ) = f(r,-θ), symmetric to the polar axis or the x-axis
f(r, θ) = f(-r,θ), symmetric to the y-axis
f(r, θ) = f(-r,-θ), symmetric to the pole or the origin
Test for symmetry about the x-axis
f(r,θ): r=4 cos3θ
f(r,-θ): r = 4 cos3(-θ) ⇒ r = 4 cos3θ
∴The graph is symmetric about the x-axis.
Test for symmetry about the y-axis
f(r,θ): r=4 cos3θ
f(-r,θ): -r = 4 cos3θ
∴The graph is not symmetric about the y-axis.
Test for symmetry about the origin
f(r,θ): r=4 cos3θ
f(-r,-θ): -r = 4 cos3(-θ) ⇒ r = -4 cos3θ
∴The graph is not symmetric about the origin.
Error = 60-50/50 × 100
= 10/50 × 100
= 20 %
Answer:
D is the correct answer
Step-by-step explanation:
Since 5x and 4x+1 are both equal to y, we can set them equal to each other as shown below:
5x=4x+1
x=1
Plugging x=1 into y=5x gets us y=5(1)=5
So x=1 and y=5, which is also (1,5)
Hope this helped!