x2 + 6x + 9
x2 − 6x + 9
x2 − 9
x2 + 9
Find the product of (x + 3)2.
Answer:
A) x2 + 6x + 9
(Took the exam)
A total of 552.86 cm of steel is used in the frame development.
Equation modelling is the process of writing a mathematical verbal expression in the form of a mathematical expression for correct analysis, observations and results of the given problem.
We have a decorative steel frame is shown below it is made of a circular section and and 6 stems the length of each stem is 45 cm.
Assume that the total length of the steel used is [x] cm. Then -
x = 2πr + 6r
x = 2 x 22/7 x 45 + 6 x 45
x = 282.86 + 270
x = 552.86 cm
Therefore, a total of 552.86 cm of steel is used in the frame development.
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Answer:
552.78
Step-by-step explanation: