Answer:
x² + y² = 25
Step-by-step explanation:
(x - h)² + (y - k)² = r²
Centre: origin --> (0,0)
r² = (-5-0)² + (0 - 0)² = 25
x² + y² = 25
Answer:
<em>Scott will take 221 minutes to run 52 km</em>
Step-by-step explanation:
<u>Speed</u>
The speed of an object can be calculated with the formula:

Where d is the distance traveled and t is the time taken.
Scott can run d=20 km in 85 minutes. Thus, his speed is:

Now he wants to know how many minutes it will take him to run d=52 km. Solving the formula for t:

Since the speed has been already determined:

Multiplying by the reciprocal of the denominator:

t = 221 min
Scott will take 221 minutes to run 52 km
Answer:
6.85
Step-by-step explanation:
a^2+3.4^2=7.65^2
a^2=46.96
a=6.85
I used Pythagorean theorem, I hope I am right
I think it’s b i’m sorry if it’s wrong
Answer:
B
Step-by-step explanation:
oh my goodness I don't know