Answer:12
Step-by-step explanation: first you replace w for 16 and divide that by 4 because of GEMDAS or PEMDAS.. Your left with 4 now add 4 plus 8 which is 12
Using the side of the square find the area:
Area = 30^2 = 900 square feet.
The rectangles area is the same, 900 square feet.
Let the width = X
The length would be 2X + 70
Area = length x width
X * 2x+ 70 = 900
This expands to 2x^2 * 70x = 900
Use the quadratic formula to solve for x:
-70 +/- sqrt(70^2-4*2(-900))/2*2
X = 10
Width = x = 10 feet
Length = 2x + 70 = 90 feet
Answer:
w=20.48
Step-by-step explanation:
w/5.12=4
x5.12 x5.12
w=20.48
Answer:
david was. 9 seconds faster than Justin.
Step-by-step explanation:
8.1-7.2= .9
Answer:
Step-by-step explanation:
given AD = DB , means D is the midpoint of AB
given AE = EC , means E is the midpoint of AC
<h3>
<u>MID POINT THEOREM</u></h3>
In a triangle ABC, if D and E is the midpoint of side AB and AC respectively.
Then DE is parallel to BC and length of DE is half of length of BC.
BC = 22 (given in the question)