Answer: 8,100 cm^2
Step-by-step explanation: Area = S^2 so each side is sqrt(900) = 30cm
A square 3 times bigger has sides 30cm*3 = 90cm. The area for that square is 90^2 = 8,100 cm^2
Answer:
Option A, 0
Step-by-step explanation:
-105 +-100 + -95 + -90 +-85 + ... + -5 + 0 + 5+ ... + 85+ 90 +95 + 100 + 105
The answer is 0 because there is the same amount of negative numbers as there is positive. Therefore, the answer is Option A, 0
<span>Five less than a number is at least -28
n-the number
n - 5 < -28 |add 5 to both sides
n < -23
</span>
H = 3b+2
A = (h*b)/2 28 = (3b+2)b/2 56 = 3b²+2b 0 = 3b² + 2b - 56
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