The answer is the first one! :)
Answer:
CAB = 30.71 BCA = 90 ABC = 59.29
Step-by-step explanation:
BCA = 90
9x + 6 + 5x = 90
14 x = 90-6 = 84
x = 43/7
(43/7 ) * 5 = 30.71
90 - 30.71 = 59.29
To solve this question, use the Cube surface area formula
Area = 6a^2 in which a = edge.
edge = 8.5
Area = 6(8.5)²
Simplify. Follow PEMDAS
Area = 6(72.25)
Area = 433.5
(C) 433.5 in² is your answer
hope this helps
Answer:
x=12
Step-by-step explanation:
The right side is a right triangle
The base is 1/2 of the bottom or 5
The height is x and the hypotenuse is 13
We can use the Pythagorean theorem
a^2 +b^2 = c^2
5^2 +x^2=13^2
25+x^2 = 169
Subtract 25 from each side
25-25+x^2 = 169-26
x^2 =144
Take the square root of each side
sqrt(x^2) = sqrt(144)
x= 12
Answer:
30
Step-by-step explanation: