15, 20, and 25 are a Pythagorean triple, (225+40=625) thus they form a right triangle. The shortest altitude of any right triangle is going to be that of the hypotenuse. All three of the right triangles formed by the altitude on hypotenuse are similar. Thus 15:25 = a:10.
a=6.
Answer: A = 2, -3 B= 4, -8 C=8, -6
Step-by-step explanation:
The rule for a reflection over the x -axis is (x,y)→(x,−y) .
Answer:
1. = 0.36
2. = 2
Step-by-step explanation:
just do bidmas on ur calculator
Answer:
The vertex form of the function is 
.
Step-by-step explanation:
The given function is
The vertex form is
Rewrite the given function
Add and Subtract 
.
Use 
Therefore the vertex form of the function is .
Answer:
A
Step-by-step explanation:
6x+3y=33 <=> 2x+y=11<=>4x+2y=22 (1)
4x+y=15 (2)
(1)-(2) <=> y=7
