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yarga [219]
3 years ago
10

pls answer Sylvia read that the height of the Empire State Building is 443.2 m and wants to build a scale model of the building

in her room. She knows that the height of the ceiling in her room is 8 ft. Write a scale that would allow a scale model of the Empire State Building in Sylvia's bedroom so that the top of the building would just touch her ceiling. A. 1 in. = 5.5 m B. 1 in. = 5 m C. 1 in. = 4.7 m D. 1 in. = 4 m
Mathematics
1 answer:
uysha [10]3 years ago
8 0

Answer:

C

Step-by-step explanation:

converting 8 ft to inches

8 * 12 = 96inches

if 96 inches = 443.2 m

1 inch = (443.2 * 1)/96 = 4.6m

which is closest to option c

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I believe the answer is A.
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The height of a rectangular prism is 3 feet. The length and width can be expressed as x-1 and x+4. If the volume of the prism is
SashulF [63]

Answer:

Step-by-step explanation:

Volume  = 198 ft

length * width * height = 198

(x - 1) * (x + 4) * 3 = 198

(x - 1) * (x + 4)  = 198/3

(x - 1) * (x + 4) = 66

x*x + x*4 -1*x - 1*4 = 66   {Use FOIL method to multiply}

x² + 4x - x - 4 = 66

x² + 3x - 4 =66

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x² + 3x - 70 = 0

Now factorize.

x² + 10x - 7x - 7*10 = 0

x(x +10) - 7(x + 10 ) = 0

(x + 10)(x - 7) = 0

x - 7 = 0 {x + 10 is ignored because measurement cannot be in negative}

x = 7

length = x - 1 = 7 - 1 = 6ft

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4 0
3 years ago
Which of the following statements are true <br> a<br> b<br> c<br> or d
Kisachek [45]

Answer:

c

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8 0
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If f(x)= 3x2- 2x + 3 then find what f(3) is equal to
Anettt [7]

Answer:

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Step-by-step explanation:

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HAVE A NICE DAY!

THANKS FOR GIVING ME THE OPPORTUNITY TO ANSWER YOUR QUESTION.

5 0
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Aleks [24]

Answer:

<em>0</em> is the probability that a  randomly selected student plays both a stringed and a brass  instrument.

Step-by-step explanation:

Given that:

Number of students who play stringed instruments, N(A) = 15

Number of students who play brass instruments, N(B) = 20

Number of students who play neither, N(A \cup B)' = 5

<u>To find:</u>

The probability that a randomly selected students plays both = ?

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So, <em>0</em> is the probability that a  randomly selected student plays both a stringed and a brass  instrument.

5 0
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