The cost of having someone come to your house and clean for x number of hours is represented by the
1 answer:
Answer:
$140
Step-by-step explanation:
When a variable is placed directly after the coefficient (the number) with no symbols between them, we are supposed to multiply the two together. The variable <em>x</em><em> </em>represents the number of hours this person will spend cleaning your house, and we are trying to find the cost of 4 hours of cleaning. Therefore, we will substitute 4 for <em>x</em>:
Then, we multiply 35 by 4:
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Answer:
Part 1)
Part 2)
Step-by-step explanation:
<u><em>The picture of the question in the attached figure</em></u>
Part 1) Find the area
we know that
The area of the shape is equal to the area of a quarter of circle minus the area of an isosceles right triangle
so
we have that the base and the height of triangle is equal to the radius of the circle
substitute
simplify
Factor 36
Part 2) Find the perimeter
The perimeter of the figure is equal to the circumference of a quarter of circle plus the hypotenuse of the right triangle
The circumference of a quarter of circle is equal to
substitute the given values
Applying the Pythagorean Theorem
The hypotenuse of right triangle is equal to
simplify
Find the perimeter
simplify
Factor 6
