Answer:
true
Step-by-step explanation:
a prime number is an odd number.
If you add 1 to an odd number, it will become an even number, then it is divisible by 2.
Since the surface is 3 feet wide around the pool add 6 feet to both dimensions ( 3 feet x 2 = 6).
12 ft + 6 ft. = 18 feet
15 ft + 6ft. = 21 feet
Perimeter = 2L + 2W
Perimeter = 2(18) + 2(21)
Perimeter = 36 + 42
Perimeter = 78 feet.
Answer: 182.88 cm
Step-by-step explanation: 1ft = 12 in, so you convert the 6 feet to inches first by multiplying 6 x 12, which equals 72. Then multiply 72 by 2.54, which equals 182.88.
The two numbers it lies between are 4 and 5
Answer:
(x+11)(x-2)
Step-by-step explanation:
To factorise: x^2+9x-22
You must first divide the centre term in such a way that the sum of the 2 values will be divisible by x squared and minus 22 respectively.
So x^2+9x-22 = x^2 -2x + 11x - 22.
Now factorize x^2 - 2x and 11x-22 individually.
x^2 - 2x = x(x-2)
11x - 22 = 11(x-2)
Since these both have the same value in the brackets, use 5at one of the brackets and the other is the combination of them together:
(x+11)(x-2)
Hope this helps