Solve the system by substitution. y = 4x + 22 y = -7x
2 answers:
Answer:
,
Step-by-step explanation:
If two items or expressions are equal to the same subject then they are equal to each other,
y = 4x + 22 and y = -7x
Using the statement at the top
<em>Subtract -7x from both sides to collect the x terms</em>
<em>Minus 22 from both sides to isolate 11x</em>
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<em>Divide both sides by 11 to isolate x</em>
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<em>Substitute x = -2 into y = -7x</em>
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So the solution is and
Hope this helps :)
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Answer:
The surface area of the drum is 3317.5218 square inches.
Step-by-step explanation:
Drum's have a cylindrical form, therefore in order to calculate its surface area we need to apply the correct formula, as shown below:
Where the first term of the sum is the area of the lid and bottom of the drum and the second term is the area of the walls of the drum, r is the radius and h is the height. Applying the data from the problem, we have:
The surface area of the drum is 3317.5218 square inches.