Answer:
y=6
Step-by-step explanation:
divide the total area by 5 to get the area of the square
180/5= 36 cm²
the area of a square is y²
so y²=36⇒ y= 6
We need to multiply 4/5 by 4 5/8. We change 4 5/8 into a fraction to do the multiplication.
4/5 * 4 5/8 =
= 4/5 * 37/8
= 148/40
= 37/10
= 3 7/10
Answer: Sara's sister is 3 7/10 ft tall.
Answer:
n=−0.545455
Step-by-step explanation:
n(6.5)=−3+n
Simplify both sides of the equation.
n(6.5)=−3+n
6.5n=−3+n
6.5n=n−3
Subtract n from both sides.
6.5n−n=n−3−n
5.5n=−3
Divide both sides by 5.5.
5.5n
5.5
=
−3
5.5
A semicircle is a half of a circle.
Find the circumference of a full circle then divide in half.
Circumference = pi x r x 2
Circumference = 3.14 x 9 x 2 = 56.52
Semicircle = 56.52/2 = 28.26