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dimaraw [331]
3 years ago
7

Help please!!!

Mathematics
2 answers:
Dafna1 [17]3 years ago
6 0

Answer:

it is 9/41

Step-by-step explanation:

Tanya [424]3 years ago
4 0
Sin C = AB / AC
We have AC. We need to calculate AB

ABC is a right triangle. Therefore, AC² = AB²+BC²
82² = AB ² + 80² => AB² = 82² - 80²
AB = 18

Sin C = 18/82 = 9/41

Good luck
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Whoever answers this correctly gets brainlist!
Gnoma [55]

Answer:

5.  3/10

6.  7/12

7.   7/8

8.   4/3

Step-by-step explanation: Hope this helps!

7 0
3 years ago
Read 2 more answers
Thirty elves would like to build a skating ring so they can all use it at the same time. Santa tells them, they need at least 40
Delicious77 [7]

Answer:

The Possible dimension of the ring could be;

20 ft × 60 ft

25 ft × 48 ft

30 ft × 40 ft

60 ft × 20 ft

48 ft × 25 ft

40 ft × 30 ft

Step-by-step explanation:

Given:

Number of skaters = 30

Area for each skater = 40 sq ft

We need to find the dimension of rectangular ring the are going to build.

Now we know that they building the skating ring such that they all can use at same time.

Hence if the all use at same time then we will find the total area first.

Total area can be calculated by multiplying Number of skaters with area required for each skaters.

Framing the equation we get;

Total area = 30\times 40 = 1200 \ ft^2

Hence The total area of the rectangular ring would be 1200 sq. ft.

Now we know that Total area is equal to product of length and width.

length\times width =1200ft^2

1200 can be written as = 20 × 60, 25 × 48, 30 × 40,60 × 20,48 × 25,40 × 30

Hence the Possible dimension of the ring could be;

20 ft × 60 ft

25 ft × 48 ft

30 ft × 40 ft

60 ft × 20 ft

48 ft × 25 ft

40 ft × 30 ft

3 0
2 years ago
Solve the equation <br><br>9y^3+8y=4y+18y^2
kari74 [83]
9y^3+8y=4y+18y^2
9y^3-18y^2+4y=0

*Divide the whole thing by y

9y^2-18y+4=0

*use quadratic formula to solve
3 0
3 years ago
Jane is 14 years older than mary. in five years jane will be one less than twice mary's age. what is the sum of jane and mary's
Elenna [48]
Answer =44. Hope this answer is helpful and correct.

4 0
3 years ago
Hey! A step by step explanation on this would be great! Thanks!<br> (25 Points)
kicyunya [14]

Step-by-step explanation:

We find the stationary point of (20 + 2x)(1200 - 60x),

where x is the unit rate of increase/decrease.

d/dx [(20 + 2x)(1200 - 60x)]

= d/dx (-120x² + 1200x + 24000)

= -240x + 1200.

When d/dx [(20 + 2x)(1200 - 60x)] = 0,

We have -240x + 1200 = 0. => x = 5.

Price per shirt that maximise revenue

= $20 + $2x = $20 + $2(5) = $30.

Maximum revenue

= (20 + 2(5))(1200 - 60(5))

= $30 * 900 = $27,000.

6 0
2 years ago
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