Area = width * height
since the window is 20 inches higher than the width:
width +20 = height
640 = width * width+20
640 = width^2 +20*width
width^2 +20*width - 640 = 0
width = 17.203
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Double Check
if width = 17.203 then height = 37.203
area = 17.203 * 37.203 = 640 square inches Correct!!
Answer:A
Step-by-step explanation:
From the word itself distribution, the distributive
property of equality states that a number must be distributed to all the
numbers inside the parenthesis. From the given choices, the only correct answer
is:
C. −3 ⋅ (6.48)=(−3⋅6) + (−3⋅0.4)
+ (−3⋅0.08)
Answer:
Step-by-step explanation:
