Answer:
x is 55 and the perimeter is 120
Step-by-step explanation:
55+55 is 110 and 5+5 is 10 so that all adds up to 120
Answer:
h = -7
Step-by-step explanation:
- 8 ÷ 2 = 4
- Plug 4 in: -3 = h + 4
- Subtract 4 from each side, so it now looks like this: -7 = h
I hope this helps!
If the number is n then
square of 2 times a number
square of 2n
(2n)²
that was your mistake, because (2n)²=4n², not 2n²
the result is 81
(2n)²=81
square root both sides
remember positive and negative roots
2n=+/-9
divide by 2
n=+/-4.5
n=4.5 or -4.5
Answer:
6/7
Step-by-step explanation:
6/7 is not an integer. Integers are {..., -3, -2, -1, 0, 1, 2, 3, ...}.
