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Lapatulllka [165]
2 years ago
6

Can someone help me solve this?​

Mathematics
1 answer:
lord [1]2 years ago
6 0

Step-by-step explanation:

sin \: 60 \degree =  \frac{27}{k}  \\  \\  \therefore \:  \frac{ \sqrt{3} }{2}  =  \frac{27}{k}  \\  \\  \therefore \: k =  \frac{2 }{\sqrt{3} } \times 27 \\  \\ \therefore \: k =  \frac{2  \times  \sqrt{3} }{\sqrt{3} \times  \sqrt{3}  } \times 27 \\  \\ \therefore \: k =  \frac{2   \sqrt{3} }{3  } \times 27 \\  \\ \therefore \: k = 2   \sqrt{3} \times 9 \\  \\ \therefore \: k = 18   \sqrt{3} \\  \\ \therefore \: k = 18    \times 1.732 \\  \\ \therefore \: k = 31.176 \\  \huge \red{ \boxed{ \therefore \: k \approx \: 31.18 }}\\  \\ tan \: 60 \degree =  \frac{27}{j}  \\  \\  \therefore \:  \sqrt{3} =  \frac{27}{j}  \\  \\ \therefore \: j =  \frac{27}{ \sqrt{3} }  = \frac{27 \sqrt{3} }{3}  = 9 \sqrt{3}  \\ \therefore \: j =9 \times 1.732 \\ \therefore \: j =15.588 \\ \huge \orange{ \boxed{ \therefore \: j \approx 15.59}}

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Svetllana [295]

Let x be the number of MP3 players TechWiz sold last week.

If TechWiz sold in total 130 MP3 and DVD players, then it sold (130-x) DVD players.

1. TechWiz Electronics makes a profit of $35 for each MP3 player sold, then it makes a profit $35x for x MP3 players sold.

2. TechWiz Electronics makes a profit of  $18 for each DVD player sold , then it makes a profit $18(130-x) for (130-x) DVD players sold.

3. An expression for the combined total profit (in dollars) TechWiz made from MP3 and DVD players last week is

35x+18(130-x).

You can simplify it:

35x+2,340-18x=17x+2,340

Answer: 35x+18(130-x) or 17x+2,340

8 0
3 years ago
50 POINTS for both questions
love history [14]

Answer:

3. i think 15.5

4. 140*

Step-by-step explanation:

in number 4, d is a vertical angle to the angle measured at 140.

in number 3, QV=SV, so 17=4x-1     18=4x    18/4=x   x=4.5

and TS=TQ, so 3(x) + 2 = 3(4.5) + 2 = 13.5 + 2 = 15.5 =TQ

6 0
3 years ago
Read 2 more answers
An item sells for $30 and is on sale for 15% off and the sales tax is 8.2%. What is the final cost to the nearest cent? (Calcula
mestny [16]

Answer:

$27.59

Step-by-step explanation:

You multiply 30 dollars by 0.85 (1-0.15, with the 0.15 being for the 15 percent off). Which gets you to $25.50, and you then multiply it by 1.082 (the 1.082 being the tax, and the .082 part equating to the 8.2% tax percentage).

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3 years ago
What is : 96 x 68.43 ?
enot [183]
96 times 68.43 would be 6569.28, or 6579 7/25
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2 years ago
A new price of an item is $39.32. The percent increase was 16%. What was the original price?
Fiesta28 [93]

Answer:

let x =the original price

then 116x/100=$39.32

116x=100×39.32

116x=3932

divide both sides by 116

116x/116=3932/116

x=33.89655

(2dp)

x=33.90

4 0
2 years ago
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