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Blababa [14]
3 years ago
15

Is geometry more valuable to an architect, engineer, or an astronomer? Justify your decision.

Mathematics
1 answer:
Viefleur [7K]3 years ago
7 0

Answer:

architect because they need to determine the length, width, and height of objects, they need to use area to see if there's enough space for what they want to build, etc.

Step-by-step explanation:

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What is the equation of a line that is perpendicular to −x+3y=9 and passes through the point (−3, 2) ?
Phoenix [80]
3y=x+9
x=1/3x+3
m=-3
y-2=-3(x+3)
y-2=-3x-9
y=-3x-7
8 0
4 years ago
What is the inverse of the function f(x)=-\dfrac{1}{2}(x+3)f(x)=− 2 1 ​ (x+3)f, left parenthesis, x, right parenthesis, equals,
elena55 [62]
Please answer please please thank you
4 0
4 years ago
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A dormitory has 40 students---12 sophomores, 8 juniors, and 20 seniors. Which of the following is equal to the number of ways to
Maurinko [17]

Answer:

The number of ways is equal to 12!8!20!

Step-by-step explanation:

The multiplication principle states that If a first experiment can happen in n1 ways, then a second experiment can happen in n2 ways ... and finally a i-experiment can happen in ni ways therefore the total ways in which the whole experiment can occur are

n1 x n2 x ... x ni

Also, given n-elements in which we want to put them in a row, the total ways to do this are n! that is n-factorial.

For example : We want to put 4 different objects in a row.

The total ways to do this are 4!=4.3.2.1=24 ways.

Using the multiplication principle and the n-factorial number :

The number of ways to put all 40 in a row for a picture, with all 12 sophomores on the left,all 8 juniors in the middle, and all 20 seniors on the right are : The total ways to put all 12 sophomores in a row multiply by the ways to put the 8 juniors in a row and finally multiply by the total ways to put all 20 senior in a row ⇒ 12!8!20!

4 0
4 years ago
Lexi bought 1 and 2/5 pounds of green grapes and 2 and 3/10 pounds of red grapes grapes are $2.99 a pound did Lexi spend more or
Anika [276]

Amount of green grapes bought = 1\frac{2}{5}=\frac{7}{5} pounds

Amount of red grapes = 2\frac{3}{10}=\frac{23}{10} pounds

Let us assume that both the grapes have same price per pound.

Total quantity of grapes = \frac{7}{5}+\frac{23}{10}

=\frac{14+23}{10}=\frac{37}{10} = 3.7 pounds

Price of 1 pound of grapes = $2.99

So price of 3.7 pounds = 2.99\times3.7 =11.063

Price is $11.063

Hence, Lexi spent less than $12.

5 0
3 years ago
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What is greater than 1.45? A. 0.009 B. 0.019 C. 0.0032 D. 0.0177
8_murik_8 [283]

Answer:

none of them are greater than 1.45

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