Answer:
30
Step-by-step explanation:
9r+16=pi5
9r+16=22/7*5
9r+16=15.7
16-15.7=9r
0.3=9r
9r=0.3
r=30
By definition, the perimeter of a square is given by:

Where,
L: length of the sides of the square.
When the sides of the square are tripled, the equation changes as follows:

Then, rewriting the equation we have:


Where,
P: perimeter of the original square.
Therefore, we can conclude that the perimeter is tripled.
Answer:
The perimeter of the square is tripled.
Answer:
-1
Step-by-step explanation:
Recall that 0.25 = 1/4, and that 1/4 = 1/[4^(-1) Notice that 4 is the base of this log system.
Then log4 0.25 = log4(1/4) = log4(4^(-1) ) = -1 (answer)
Check: Does 4^(-1) = 0.25? Yes
A=P(1+rt)
P=3500
t=3yrs.
r=7.5% / 100 = 0.075
A= 3500(1 + (0.075 x 3)) = 4287.5
A= $ 4,287.50
Answer:
m<AFE = 128°.
Step-by-step explanation:
<u>Step 1: Find the value of x</u>
<em>Angle EFD + Angle DFC = Angle EFC</em>
5x + 6 + 19x - 15 = 17x + 19
24x - 9 = 17x + 19
7x = 28
x = 4
<u>Step 2: Find all angles</u>
<em>Angle AFB=Angle EFD= 5x + 6</em>
5(4) + 6 = 26°
Angle DFC = 19x - 15
19(4) - 15 = 61°
<u>Step 3: Find angle AFE</u>
<em>Line BD is a straight line and all angles on a straight line are equal to 180°.</em>
<em>Angle AFB + Angle AFE + Angle EFD = 180°</em>
26 + BFC + 26 = 180°
BFC = 180 - 52
BFC = 128°
<em>Therefore, m<AFE is equal to 128°.</em>
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