Answer:
47 and 2/5
Step-by-step explanation:
Explanation:
In the given identified the following with reasons.
1. Given
2. Corresponding Angles postulate
3. Reflexive property of congruence
4. AA similarity postulate.
5. Triangle proportionate
6. Cross multiply
7. Distributive property of equality
8. Subtraction property of equality
9. Division property of equality
10. Prove
The answers to the question are are the equations
y = 0.08x²-1.6x+13
y = 0.08(x-10)²+5
<h3>How to solve for the system of equations</h3>
David starts at (20, 13) and skates along a path that can be modeled by a quadratic function with a vertex at (10, 5).
Vertex form of quadratic function is
y = 
13 = a(x-10)²+5
let x = 20
a(20-10)²+5
13 = 100a + 5
take like terms
13 - 5 = 100a
8 = 100a
divide through by 100
a = 0.08
hence the equation would be
y = 0.08(x-10)²+5
Read more on equations here:
brainly.com/question/9621134
#SPJ1
9w+45= amount of money she’ll have after any amount of weeks.
So, since W is weeks... and you have 9 weeks, you do (9x9)+45.
Then you get 81+45, which is 126. She will have $126 after 9 weeks
2/3 x 3/3 = 4/9
4/9+5/9=9/9=1
1+11= 12
The answer is 12