Cube surface area = side^2 * 6
54 / 6 = side^2
side = sq root (9)
side = 3 centimeters
Answer:
B.)21.4
Explanation
A(-4, 3), B(0,2), C(2,4) and D(0,-3)
AB = √(1²+4²) = √17 =4.12
BC = √(2²+2²) = √8 = 2.83
CD = √(2²+7²) = √53 = 7.28
AD = √(4²+6²) = √52 =7.21
Perimeter = 4.12+2.83+7.28+7.21 = 21.44
To the nearest tenth the answer is 21.4.
Answer:
X=1
Step-by-step explanation:
5(2x - 8) + 15 = -15
10x - 45 + 15 = -15
10x - 25 = -15
10x = 10
X= 1
-4 because it makes it true
Answer: 5
Step-by-step explanation: We can use the Pythagorean Theorum here.
4^2 + x^2 = 7^2
16+ x^2 = 49
x^2 = 25
x = 5
