Answer:
see explanation
Step-by-step explanation:
Since the 2 figures are similar then the ratios of corresponding sides are equal, that is
= 
( cross- multiply )
18x = 48 ( divide both sides by 18 )
x = 
= 
= 2 
Similarly
= ( cross- multiply )
18y = 30 ( divide both sides by 18 )
y = 
= 
= 1
Answer:
seconds
Step-by-step explanation:
When the ball hits the ground, its height will obviously be 0. Therefore, you can set up the equation the following way:
Plugging this into the quadratic equation, you get:
Since the time must be positive, it takes the ball seconds to hit the ground, or around 3.828. Hope this helps!
Answer:
I'm just getting points
Step-by-step explanation:
just points
If your asking to multiply 9x5 then the anwser is 45.
Answer:
infinite number of solutions
Step-by-step explanation:
Work with the second equation. Subtract 8x from both sides.
- 4y + 8x - 8x = -8x - 12 Collect like terms.
-4y = - 8x - 12 Divide by - 4
-4y/-4 = - 8x/-4 - 12/-4
y = 2x + 3
That is exactly the same line as the first given. There is an infinite number of solutions.
