You can use the discriminant rule, which is :
b^2 -4ac
“exactly one solution” means that it is equal to zero
so:
b^2 -4(4)(9)=0
b^2 -4(36)=0
b^2 -144=0
b^2=144
square root both sides
b=12 or -12
hope this helps !
Answer:
363 feet
Step-by-step explanation:
330 ft / 10 seconds = 33 ft per second
33 * 11 seconds = 363 feet
Eg is half the length of ac
Answer:
-48/11
Step-by-step explanation:
-2x+5-40-9x-13=0
-11x=40-5+13
-11x=48
x=-48/11
Answer:
y=mx+b
Step-by-step explanation:
