Answer: AE = 120.83 m DE= 148.66 m
The perimeter of the pentagon is 699.49
Sketch attached.
Step-by-step explanation: First we have to imagine the shape of the pentagon. In order to satisfy the requirement "that E is 50 m from the side AB and 30 m from the side BC," <em><u>this must be a concave pentagon. </u></em>
To determine the lengths of sides AE and DE, subtract the given distances of E from the lines, and use those values in the Pythagorean Theorem.
AE:
DE:
Add those lengths and the remaining sides of the "rectangle shown below" to calculate the perimeter.
280+150+120.83+148.66= 699.49
Answer:
x= -2
y= -2
Step-by-step explanation:
y = 8x + 14
y = x
Now by subtraction of these two equation,
So 0 = 7x + 14
x = -2
y = -2
Try this solution:
note, that sin(pi/2+x)**=cosx, it means sin(x+pi/2)= -4/5.
ps/ ** may be used the formula sin(a+b)=sinacosb+sinbcosa.
Answer: x=7/4 or x=7
Step-by-step explanation:
step 1: Factor left side of equation.
(4x−7)(x−7)=0
Step 2: Set factors equal to 0.
4x−7=0 or x−7=0
x=7/4 or x=7