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Contact [7]
3 years ago
12

A. Jill writes 23.43 = 86 and the teacher marked it wrong. Explain Jill's error

Mathematics
1 answer:
lesya [120]3 years ago
6 0

She doesn't have 2 numbers she only has one

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Given a right prism where p is the perimeter of the base, h is the height, BA is the area of the bases, and LA is the lateral ar
Ymorist [56]
Let
<span>p ----------------> is the perimeter of the base
</span><span>h ---------------> is the height
</span><span>BA------------->  is the area of the bases
</span><span>LA--------------> is the lateral area

we know that surface area is </span><span>the sum of base areas plus lateral areas 
</span><span>then
SA=[BA]+P*h
but remember that
LA=P*h
then
SA=</span>[BA]+LA----------> SA=BA+LA

the answer are the options B.) SA=BA+LA and the option D.) SA=BA+ph
7 0
2 years ago
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Write 18.4 as a fraction in lowest terms
Lapatulllka [165]

Answer:

Divide each side of 18/4 by 2 to get <u>9/2.</u>

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2 years ago
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Two ropes are attached to a large ballon in a parade. The people holding the ropes are 40 feet apart,and the angle between the t
qaws [65]

Ropes are 9.63 meters ans 8.178 meters.

<u>Step-by-step explanation:</u>

Step 1 :

List all the given things

         Distance between people holding ropes = 40 =(40*0.3048) meters = 12.192 meters

         Angle between two ropes = 86 degrees

         Angle of elevation of one rope = 42 degrees

Step 2 :

Two angles of triangle are already given so third angle can be calculated as -  

            Third angle = 180 - ( 86 + 42 ) = 52 degrees

Step 3 :

As we know all three angles we will apply sine rule now, which is

\frac{a}{sine A} = \frac{b}{sine B} = \frac{c}{sine C}

Step 4 :

By putting values, we have

\frac{a}{sine 52} = \frac{b}{sine 42} = \frac{12.192}{sine 86}

Step 5 : Calculating a and b

a = 12.192 * \frac{sine 52}{sine 86}   ,   b = 12.192 * \frac{sine 42}{sine 86}      

Step 6 :

By putting values of all sine and calculating we get,

a = 9.63 meters and b = 8.178 meters                                

4 0
3 years ago
colin climbs 16 feet down into tunnel and lands on the tunnel floor. then he jumps to a platform that is 2 feet above the tunnel
Ksivusya [100]

Answer:

-14

Step-by-step explanation:

-16 + 2=-14

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2 years ago
Help!!!!! Help please<br> !!!!!!
Ivahew [28]

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