Answer:
2A/h - a = b
Step-by-step explanation:
Using A= 1/2(a+b)h
Divide both side by h
⇒A/h = 1/2(a + b)
Mutiply both sides by 2
⇒2A/h = a + b
Take the 2 over to the other side
2A/h - a = b
Keep in mind, that the (a) is not on the bottom, rather on its own
Answer:
a = 9
Step-by-step explanation:
you can simplify the proportion to:
use cross- multiplication
8a = 72
a = 9
Answer:
numbers are 33 and 7
Step-by-step explanation:
x+y=40
4y+5+y=40
5y+5=40
5y=35
y=7
x=4y+5=4(7)+5=28+5=33
Answer is 214
Step-by-step explanation:
because if you add them it equal that number
Hello,
The parabola having like focus (0,p/2) and as directrix y=-p/2 has as equation x²=2py
Here -p/2=2==>p=-4
x²=-8y is the equation.
