Answer: No it's equal 3x + 9y=12
Step-by-step explanation:
Because the point (1,1) is just telling you that 1=y and 1=x so if you add that to your ecaution it will add up to 12 making the equation false
B: one
C: three
D: infinitely many
B is correct
Answer:
The answar is 0.1239
Step-by-step explanation:
The percent sign tells un to divide 12.39 by a hundred(12.39/100). Divide 12.39 by hundred and you get 0.1239
Your friend is not correct.
It takes the cheetah Approximately 21.67 seconds to run at 90 ft/s to reach the moving antelope.
Given that, a cheetah can run at top speed for only about 20 seconds and the top speed of a cheetah is 90 feet per second.
The formula to find the speed of an object is Speed = Distance / Time.
From the given question in 20 seconds cheetah will cover a distance of:
20 × 90 = 1800 feet
In 20 seconds cheetah will cover a distance of 1800 feet.
It is given that the antelope runs 60 feet per sec
That means in 20 seconds antelope will cover a distance of:
20 × 60 = 1200 feet
In 20 seconds antelope will cover a distance of 1200 feet.
Now add the distance ran initially, because the antelope was ahead of the cheetah from 650 feet.
1200 feet + 650 feet = 1850 feet
But the maximum distance cheetah can cover is 1850 feet. Thus the antelope is still 50 ft ahead of the cheetah.
Therefore, the antelope is probably safe.
Hence, your friend is not correct.
The speed of a cheetah is 30 feet per second more than antelope.
Cheetahs need to cover 50 feet to catch antelope.
So, 50/30 =1.67 seconds
20 seconds + 1.67 second = 21.67 seconds
Therefore, it takes the cheetah approximately 21.67 seconds to run at 90 ft/s to reach the moving antelope.
To learn more about the speed visit:
#SPJ2
Answer:
(0,0)
Step-by-step explanation:
x^2+y^2=4^2
center: (0,0)
radius=4