She needs to purchase a cover to protect the hot tub of an area of 38.5 square feet.
<h3>What is a circle?</h3>
It is a locus of a point drawn at an equidistant from the center. The distance from the center to the circumference is called the radius of the circle.
Claire has a hot tub with a diameter of 7 feet. She wants to purchase a cover to protect the hot tub.
The area of the circle is given by

We have d = 7 ft, then the area of the circle will be

More about the circle link is given below.
brainly.com/question/11833983
Answer:
x=−y+19
Step-by-step explanation:
(x+5)(2)+(y−3)(2)=42
Step 1: Add -2y to both sides.
2x+2y+4+−2y=42+−2y
2x+4=−2y+42
Step 2: Add -4 to both sides.
2x+4+−4=−2y+42+−4
2x=−2y+38
Step 3: Divide both sides by 2.
2x
2
=
−2y+38
2
x=−y+19
Answer:
Step-by-step explanation:
Many calculators use "E" to signify "×10^( )". Thus ...
... 1.3E-2 = 1.3×10^(-2)
This number in scientific notation is equivalent to the standard form number ...
... 1.3×0.01 = 0.013
Answer:
1+2+3+4+5+6+7+(8 x 9)
Step-by-step explanation:
8 x 9 = 72
72+7=79
79+6=85
85+5=90
90+4=94
94+3=97
97+2=99
99+1=100