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3 years ago

The length of a rectangle is 3 inches greater than the width.

Mathematics

2 answers:

Gnesinka [82]3 years ago

6 0

Answer: 28ins²

Step-by-step explanation:

From the question, let the width of the rectangle = xins.

Therefore, the breadth = ( x + 3 )ins.

(A) The area of the rectangle which is L x B = x( x+ 3 )

= (x² + 3x)ins² . In polynomial.

(B) The area of the rectangle if the width is 4ins, that is if x = 4ins.To find the area, we substitute for x in the area above

= 4² + 3 x 4

= 16 + 12

= 28ins²

kati45 [8]3 years ago

4 0

Answer:

A - x (x+3) = Area of the rectangle

B- 28 inches squared

Step-by-step explanation:

B- using the formula from A

x = 4

x + 3 = 4 +3 = 7

4 times 7 is 28

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Answer:

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3 years ago

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3 years ago

A typical snake bite delivers 0.0045 grams of venom. Maria and Tammy were asked to write this number in scientific notation. The

Stolb23 [73]

Answer:

Maria

Step-by-step explanation:

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Maria wrote it in scientific notation as $4.5\times 10^{-3}$

Tammy wrote it in scientific notation as $4.5\times 10^{3}$

Any number can be written in the form of scientific notation as follows :

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The given no is 0.0045.

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3 years ago

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anyanavicka [17]

Answer:

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Step-by-step explanation:

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2 years ago