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Anastaziya [24]
3 years ago
8

Explain how to divide a over b divided by c over d

Mathematics
2 answers:
const2013 [10]3 years ago
7 0

So a over b divided by c over d looks like the following

\frac{a}{b}\div\frac{c}{d}

In order to divide two fractions, you multiply by the reciprocal (also known as the multiplicative inverse).


The reciprocal is the fraction "flipped"

\frac{a}{b}\div\frac{c}{d} = \frac{a}{b}\times\frac{d}{c}\\\frac{a}{b}\times\frac{d}{c} = \frac{ad}{bc}


kow [346]3 years ago
3 0
Flip c over d to d over c and multiply it so:
\frac{a}{b}  \times  \frac{d}{c}
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The temperature of a point $(x,y)$ in the plane is given by the expression $x^2 + y^2 - 4x + 2y$. what is the temperature of the
ollegr [7]
x^{2} + y^{2}-4x+2y

can be written as follows:

x^{2} -4x+ y^{2}+2y

(x^{2} -4x+4)-4+ (y^{2}+2y+1)-1

(x-2)^{2}+(y+1)^{2} -5

since (x-2)^{2} and (y+1)^{2} are always positive, except for x=2 and y=-1, when they become 0,

the minimum value of this expression is when x=2, and y=-1, that is -5



Answer: -5
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3 years ago
1.) Find the equation of the circle with center at (-3, 1) and through the point (2, 13).
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6n = 21 what is the answer<br>​
UkoKoshka [18]

Answer:

Decimal: n = 3.5

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Step-by-step explanation:

6n = 21

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n = 7/2

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7 0
3 years ago
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3 years ago
Compute the total cost of the meal to the nearest cent: meal costs $24.62 plus 6% tax and 15% tip.​
matrenka [14]

The total cost of the meal is $30.02

Step-by-step explanation:

Given,

Cost of meal = $24.62

Tax = 6%

Tax amount = 6% of cost of meal

Tax\ amount=\frac{6}{100}*24.62\\Tax\ amount=\frac{147.72}{100}\\Tax\ amount=\$1.48

Cost after sales tax = 24.62+1.48 = $26.10

Tip = 15%

Tip amount = 15% of cost after sales tax

Tip\ amount=\frac{15}{100}*26.10\\\\Tip\ amount=\frac{391.5}{100}\\Tip\ amount=\$3.92

Total cost of meal = Cost after sales tax + Tip amount

Total cost of meal = 26.10+3.92 = $30.02

The total cost of the meal is $30.02

Keywords: percentage, sales tax

Learn more about percentages at:

  • brainly.com/question/13087541
  • brainly.com/question/13096411

#LearnwithBrainly

7 0
3 years ago
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