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Len [333]
3 years ago
13

Find the value of this expression 2 and 3 square + 17-3×4

Mathematics
1 answer:
8090 [49]3 years ago
6 0

Answer:

39

Step-by-step explanation:

2+(3^2)+17-(3×4)

2+(3×3)+16-(12)

2+9+16+12=39

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Based on a survey conducted by Greenfield Online, 25 - 34-year-olds spend the most each week on fast food. The average weekly am
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The correct answer is P = 0.1357.

In solving for the probability (P) that the 34-year olds will spend more than $60 on fastfood, the mean and the standard deviation is to be taken into account. The mean (μ) being the $44 average weekly expenditure; while the standard deviation (σ) is $14.50. The formula goes this way P(X > 60) = P( X−μ > 60−44 ) = P ( X−μ/σ > 60−44/14.50). 

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2 years ago
Here is a division equation: 4/5 ÷ 2/3 = ? Write a multiplication equation that corresponds to the division equation.
Finger [1]

Answer:

4/5 * 3/2

Step-by-step explanation:

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2 years ago
an algebra teacher drove by a farmyard full of chickens and pigs.the teacher happened to notice that there were a totals of 100
LiRa [457]
I'll be honest, this is a pretty interesting question. I've never seen anything like it before!

We can start off by making equations with the given. If there are 100 heads, that means that the total number of chickens and pigs combined is 100. Thus, we can form our first equation:

p + c = 100
('p' represents number of pigs, and 'c' represents number of chickens)

We also know that there are 270 legs total. Since chickens have 2 and pigs have 4, we can make the following equation:
2c + 4p = 270

I suppose the quickest way to solve for this equation is to use the subtraction method. Put the equations on top of each other:

2c + 4p = 270
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___________
Multiply the bottom equation by -2;

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"Add" these two equations together:

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2p = 70

Divide both sides by 2:
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c + 35 = 100
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-T.B.
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3 years ago
The volume of a gas in cubic centimeters v,varies inversely with the pressure of the gas in liters per square centimeters,p when
scoundrel [369]

Answer:

The volume of the gas is 145.45\ cm^{3}

Step-by-step explanation:

we know that

A relationship between two variables, x, and y, represent an inverse variation if it can be expressed in the form y*x=k or y=k/x

Let

v------> the volume of a gas in cubic centimeters

p-----> the pressure of the gas in liters per square centimeters

so

p*v=k

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v=16\ cm^{3}, p=20\ l/cm^{2}

substitute and solve for k

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The equation is p*v=320

<em>Find  the volume of the gas when the pressure is 2.2 L/cm2</em>

so

For p=2.2\ l/cm^{2} Find the value of v

substitute in the equation

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2 years ago
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