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Rom4ik [11]
3 years ago
7

A rectangle has a perimeter of 14 cm and length x cm. show that the width of the rectangle is (7-x)cm and hence that the area A

of the rectangle is given by the formula A= x(7-x). Draw the graph, plotting x on the horizontal axis with a scale of 2cm to 1 unit, and A on the vertical axis with a scale of 1cm to 1 unit
take x from 0 to 7. From the graph find:
a) the area of the rectangle when x = 2.25cm
b) the dimensions of the rectangle when its area is 9cm^2
c) the maximum area of the rectangle
d) the length and width of the rectangle corresponding to the maximum area
e) what shape of the rectangle has the largest area
Mathematics
2 answers:
Bogdan [553]3 years ago
7 0

Answer:

B is correct answer

Step-by-step explanation:

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Hoochie [10]3 years ago
4 0

Answer:

B

Step-by-step explanation:

i know

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Gail has eight united states coins. Their total value is 93 cents. What coins does she have?
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8 coins = $0.93

3 quarters = $0.75
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3 pennies = $0.03

3 + 1 + 1 + 3 = 8 coins

$0.75 + $0.10 + $0.05 + $0.03 = $0.93

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Answer:

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3 0
2 years ago
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Write the equation of the line passing through the point (−3,−4) that is perpendicular to y=8/3x+5.
KiRa [710]

Answer:

y = -3/8x -41/8

Step-by-step explanation:

Perpendicular lines intersect at 90° and their slopes are opposite reciprocals.

Therefore the slope changes from 8/3 to -3/8.

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