The dimensions of the scale drawing of a rectangle are 8cm and 11cm. If the scale factor is 4, what is the length of the origina
l rectangle?
1 answer:
Answer:
Length of the original rectangle is 2.75 cm
Step-by-step explanation:
The dimensions of the scale drawing of rectangle are 8 cm and 11 cm respectively.
This implies that the width of the rectangle is 8 cm while the length of the rectangle is 11 cm.
The scale factor is given as 4. This means that the dimensions of the original rectangle are 1/4 times the given dimensions.
So the length of the original rectangle = ![\[\frac{1}{4}*11\]](https://tex.z-dn.net/?f=%5C%5B%5Cfrac%7B1%7D%7B4%7D%2A11%5C%5D)
= ![\[2.75\]](https://tex.z-dn.net/?f=%5C%5B2.75%5C%5D)
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Answer:
Yes
Step-by-step explanation:
-2 plugged into x would give you 4 then 4 + 5 is 9
To evaluate the expressions, you substitute -9 for x and 3 for y into the expressions
(4y)^2 - (2x)
= (4(3))^2 - (2(-9))
= (12)^2 - (-18)
= 144 + 18
= 162
4y^2 - 2x^2
= 4(3)^2 - 2(-9)^2
= 4(9) - 2(81)
= 36 - 162 = -126
180=(9X-11)+(4X+1)+(7X-3)
180=20x-13
193=20x
9.65=x
Answer:
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