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3 years ago

15

Christina's family is building a house. On the blueprint, Christina's rectangular room measures 10cm by 12cm. The map has a scal

e of 1 cm=1.5 ft. What is the actual area of Christina's room?

2 answers:

musickatia [10]3 years ago

8 0

Answer:

270 ft square

Step-by-step explanation:

10cm * 1.5ft = 15 ft

12cm * 1.5ft = 18ft

18ft * 15ft = 270ft square

kifflom [539]3 years ago

3 0

Answer:

270 sq ft

Step-by-step explanation:

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Answer:

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Step-by-step explanation:

a) Since $AB \perp BC$ , the length of segment $AC$ is determined by Pythagorean Theorem, that is:

$AC = \sqrt{(5\,cm)^{2}+(3\,cm)^{2}}$

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b) Since $AB \perp BC \perp AD$ , the length of segment $AD$ is determined by this Pythagorean identity:

$AD = \sqrt{(3\,cm)^{2}+(5\,cm)^{2}+(4\,cm)^{2}}$

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The angle ACD is determined by the following trigonometric expression:

$\cos C = \frac{AC}{CD}$

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$\cos C = 0.825$

$C = \cos^{-1} 0.825$

$C \approx 34.448^{\circ}$

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(5/6)^4x=(36/25)^9-x, please help solve for x, and the 9-x is all superscript

stiks02 [169]

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