Answer:
Step-by-step explanation:
we know that
The surface area of a sphere is equal to
we have
substitute
Matt is running the family fun fair at school.He collected about $65 in donations each month for the 7 months he was planning th
1 answer:
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Answer:
<h2>width = 3 feet</h2>Step-by-step explanation:
Let h be the height of the door
and w be its width
The statement “The height of the door is I foot more than twice its width”
can be translated mathematically like this : h = 2w + 1
Let’s solve the equation for w:
h = 2w + 1
⇔ 2w = h - 1
now , if the door is 7 feet high then it’s width is equal to :