Answer:
Lol this is on khan Academy isn’t it and the answer is 5 miles to 1 hour so 5:1
Step-by-step explanation:
Answer:
<em>129 </em>
Step-by-step explanation:
Increasing rate of length, 
= 9 cm/s
Increasing rate of width, 
= 7 cm/s
Length, l = 12 cm
Width, w = 5 cm
To find:
Rate of increase of area of rectangle at above given points.
Solution:
Formula for area of a rectangle is given as:
OR
Differentiating w.r.to t:
Putting the values:
Answer:
Slope is m = -3
find equation using two point formula-- y= -3x - 5
Answer:
x=14
Step-by-step explanation:
1 way
Step 1: Subtract 3/4x from both sides.
1/4x − 5 − 3/4x=3/4x−12−3/4x
−1/2x−5=−12
Step 2: Add 5 to both sides.
−1/2x−5+5=−12+5
−1/2x=−7
Step 3: Multiply both sides by 2/(-1).
(2/−1)*(−1/2x)=(2/−1)*(−7)
2nd way
Add 5 to both sides
1/4x - 5+5 = 3/4x - 12+5
Simplify
1/4x = 3/4x -7
Subtract 3/4x from both sides
1/4x-3/4x= 3/4x-7-3/4x
Simplify
-1/2x=-7
Multiply both sides by -2
(-1/2x)(-2)=(-7)(-2)
x=14
sorry it to so long
the second picture is not acceptable
Answer:
9+25=36 square root of 36
AB=6m
