Answer:
12
Step-by-step explanation:
let the missing number be x
8 + x * 4 = 56
8 + 4x = 56
4x = 56 - 8
4x = 48
x = 48/4
x = 12
therefore missing number is 12
Answer:
Total weight = 70.5 kg
Step-by-step explanation:
Rectangular frame is made from 5 straight pieces of metal. One of them goes through the diagonal of the rectangle.
2 pieces form the length of the rectangular frame, hence, they have a length of 12 m each
2 pieces from the width of the rectangular frame, hence, they a length of 5 m each
To find the length of the diagonal, we can use Pythagoras Theorem:
Hypotenuse² = Base² + Perpendicular²
Hypotenuse² = 5² + 12²
Hypotenuse² = 169²
Hypotenuse = 13
Hence, the length of the piece of metal placed at the diagonal is 13cm
Find the sum of all lengths of the metal pieces.
Total length = 12 + 12 + 5 + 5 + 13
Total length = 47 m
Total weight = 1.5 × Total length
Total weight = 1.5 kg/m × 47m
Total weight = 70.5 kg
so, recall, the function has symmetry when the yielded resulting function resembles the original function, after negativizing the variable(s).
Also recall that minus*plus is minus, and minus*minus is plus.
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