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juin [17]
2 years ago
15

Kevin had to make 14 visits to the dentists last year to take care of his braces. Each visit cost #124. How much did the visits

cost in all?
Mathematics
1 answer:
VMariaS [17]2 years ago
7 0

Answer:

Step-by-step explanation:

Let's look at simpler cases.  If there was just one visit that would be 124.  if there were two, each time he'd have to pay 124 so it's 124+124 = 248.  So this is multiplication, because next would be three, which is 124+124+124 or 124 time 3.

In total then it's 124*14.  You may usually use an x for multiplication, and if you do just keep in mind * can also be used.  or, if something is inside of parenthesis like this 124(14) or (124)14.  If you need help doing the multiplication let me know.  

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Answer:

slope is m

y = mx + b is your standard formula

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Step-by-step explanation:

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3 years ago
What is the exact value of tan 30° ? Enter your answer, as a simplified fraction, in the box.
Romashka [77]
Hmmm if you don't have a Unit Circle, this is a good time to get one, many you can find online.  Anyhow, check your unit circle for cos(30°) and sin(30°).

\bf tan(\theta)=\cfrac{sin(\theta)}{cos(\theta)}\qquad \qquad tan(30^o)=\cfrac{sin(30^o)}{cos(30^o)}
\\\\\\
tan(30^o)=\cfrac{\quad \frac{1}{2}\quad }{\frac{\sqrt{3}}{2}}\implies tan(30^o)=\cfrac{1}{2}\cdot \cfrac{2}{\sqrt{3}}\implies tan(30^o)=\cfrac{1}{\sqrt{3}}
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\stackrel{\textit{and now if we rationalize the denominator}}{\cfrac{1}{\sqrt{3}}\cdot \cfrac{\sqrt{3}}{\sqrt{3}}\implies \cfrac{\sqrt{3}}{(\sqrt{3})^2}\implies \cfrac{\sqrt{3}}{3}}
8 0
3 years ago
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Simplify 20+4(3)÷(-8)
Mashcka [7]

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2 years ago
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The lowest number is 11 the range is 13 and the median is 17 what are the 3 numbers
11Alexandr11 [23.1K]

Answer:

11, 17, and 28.

Step-by-step explanation:

x, y, z\\

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3 0
3 years ago
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kifflom [539]

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Step-by-step explanation:

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then go back to the question and substitute the expression(12x^2 - 28x) on the bracket and then work out the question;

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6 0
3 years ago
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