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Oduvanchick [21]
3 years ago
11

A 32 foot ladder is leaning against a building and forms a 29.37 angle with the ground how far away from the building is the bas

e of the ladder round to nearest hundredth
Mathematics
2 answers:
BARSIC [14]3 years ago
6 0

Answer:

the base of the ladder is 27.89  ft away from the building

Step-by-step explanation:

Notice that this situation can be represented with a right angle triangle. The right angle being that made between the ground and the building, the ladder (32 ft long) being the hypotenuse of the triangle, the acute angle of 29.37^o being adjacent to the unknown side we are asked about (x). So, we can use the cosine function  to solve this:

cos(\theta)=\frac{adjacent}{hypotenuse} \\cos(29.37^o)=\frac{x}{32\,\,ft}\\32 \,\,cos(29.37^o)\,\,ft=x\\x=27.887\,\,ft

which rounded to the nearest hundredth gives;

x = 27.89  ft

grigory [225]3 years ago
4 0

Answer:

27.89

Step-by-step explanation:

i took the test!!

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2. The mean birth weight of a full term boy born in the US is 7.7 lbs, with standard deviation of 1.1 lbs. A. Find the probabili
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Answer:

A

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B

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Step-by-step explanation:

From the question we are told that

  The population mean is  \mu = 7.7 lbs

   The standard deviation is \sigma  = 1.1 \ lbs

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=>   P( X  <  7 ) =0.26226

Generally the standard error of mean is mathematically represented as  

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=>     \sigma_{x} = \frac{ 1.1  }{\sqrt{25} }

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=>      P( X  <  7 ) =  P(Z

From the z table  the area under the normal curve to the left corresponding to    -3.1818  is

=>      P(Z

=>      P( X  <  7 ) = 0.00073

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3 years ago
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