To find the area, move each semicircle to fill up the square, you'll see there are three squares, each with an area of 4*4=16, so the total area is 3*16=48
Now the perimeter:
the perimeter of a circle is π times the diameter.
perimeter of each semicircle: (1/2)π*4=2π
there are altogether 6 arches and two straight sides, so the total is
2π*6+4*2=12π+8
the area is 48 square units, the perimeter is 12π+8 units.
The equation x² − 10x − 11 = 0 that is equivalent to (x – 5)² = 36. Then the correct option is A.
<h3>What is an equivalent expression?</h3>
The equivalent is the expressions that are in different forms but are equal to the same value.
The equation is given below.
x² − 10x − 11 = 0
Then the equation can be written as
x² − 10x + 25 – 25 − 11 = 0
(x – 5)² = 36
Then the correct option is A.
The complete question is attached below.
More about the equivalent link is given below.
brainly.com/question/889935
#SPJ1
Answer:
36
Step-by-step explanation:
6(2b - 4)
~Substitute
6(2(5) - 4)
~Simplify
6(10 - 4)
~Subtract in parenthesis
6(6)
~Multiply
36
Best of Luck!
Answer:
4.9 m²
Step-by-step explanation:
Area of a Triangle = (base * height)/2
(3.5*1.4)/2 = 2.45 m² = A of CBD
(3.5*1.4)/2 = 2.45 m² = A of BCA
Use the quadratic formula to solve. the answer is the third one down
x= -sqrt10 - 4 and sqrt10 - 4
or in their notation above x= -4+/-10--sqrt
