Answer:
14^2+48^2=2500 sqrt2500= 50 c=50
Step-by-step explanation:
Kong took
15% fewer seconds than Nolan took. So Kong took
100%−15%=85%
85/.85=.85*?/.85
100=?
Which means that Nolan took 100 seconds.
This is all from Khan Academy so it's correct!!
Hope this helps!!
Answer:
Length = 3
Width = 7
Step-by-step explanation:
The perimeter is 20 feet
The area is 21 feet
Let x represent the length
Let y represent the width
20 = 2(x+y)
x+y= 20/2
x+y = 10.........equation 1
x × y= 21......equation 2
From equation 1
x= 10-y
Substitute 10-y for x in equation 2
(10-y)y= 21
10y - y^2 = 21
y^2 -10y + 21= 0
After factorization the result will be
(x-3)(y-7)
x-3= 0
x= 0+3
x= 3
y-7= 0
y= 0+7
y= 7
Hence the length is 3 and the width is 7
Answer:
0.05 amps.
Step-by-step explanation:
I remember this one from high school.
V=IR (V=Voltage, I=Current, and R= Resistor) *Substitue values.
I=V/R
0.6/12
Divide = 0.05 Ampere
Answer:
2(3x-20)
Step-by-step explanation:
2(3x-20) that's your answer..