Answer:
Step-by-step explanation:
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See my diagram
I'm assuming that your swimming pool is an oval or something like that
remember that the area of an oval is r₁r₂π where r₁ and r₂ are the 2 radii
so
we must do big oval-small oval
the radius is half of the diameter
calculating smalller oval area
it is 32 by 18
those are diameter
halve them
16 by 9
so the area is 16*9*pi or 144pi square feet
big oval area
add 3 feet to each side, so 6 feet total to each dimention
the big oval has diameters of 32+6 and 18+6 or 38 and 24
halve them to find the radii
19 and 12
the area is 19*12*pi or 228pi
so the area that is concrete=228pi-144pi=84pi squaer feet or about 263.89 square feet
Answer:
x=-3
Step-by-step explanation:
x=-12/4 divide both sides by 4
Answer:
-5y
Step-by-step explanation:
15 = 3×5
55 = 5×11
-15xyz = -1 × 3 × 5 × x × y × z
-55xy² = -1 × 5 × 11 × x × y²
-55yz = -1 × 5 × 11 × y × z
HCF = multiply all common factors with the lowest power amongst all 3 expressions
HCF = -1 × 5 × y = -5y
Answer:
I hope you pass it (:
Step-by-step explanation:
There are many students in science class. Irene always likes to study and do homework. In all the exams he gets a hundred. Pablo never studies and doesn't like to take notes. On the exams he gets forty, fifty and thirty. Many times Sandra likes to do her homework. In the exams he gets ninety, forty and one hundred. Eduardo sometimes likes to study and do homework. In the exams he gets ninety and ninety. Javier never likes to read books. In the exams he gets forty, fifty and forty. All students are different and I like to teach science to everyone.