Answer:
it is b !!
Step-by-step explanation:
a^2 + b^2 = c^2 :)
A - 7 + 3 = 0
a -4 = 0
a = 4
Answer is C
Let
x------> <span>speed on the bicycle
y------> </span><span>speed walking
we know that
</span>x=6+y------> equation 1<span>
speed=distance /time-------> time=distance/speed
1/y=2.5/x-------> y=x/2.5------> x=2.5y-------> equation 2
equals 1 and 2
6+y=2.5y-----> 2.5y-y=6------> 1.5y=6-----> y=6/1.5-----> y=4 mi/h
x=6+y-----> x=6+4-----> x=10 mi/h
the answer is
the speed walking is 4 mi/h
</span><span>
</span>
Answer:
(-2,-1)
Step-by-step explanation:
(-1,2) ---->> (-2,-1)
