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Kazeer [188]
2 years ago
5

Need help finding the missing angle

Mathematics
1 answer:
lys-0071 [83]2 years ago
6 0

Answer:

Step-by-step explanation:

Sinθ = opp/hyp

Sinθ = 12/13

θ = ArcSin (12/13)

θ =67.38

Let x = adj

Tan (67.38) = 15/x

2.4= 15/x

x2.4= 15

x=6.25

Therefore the missing value  is 6.25

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A student is reading a book at 350 word per minute convert this to word per hour
Papessa [141]

Answer:

21000 wph (words per hour)

Step-by-step explanation:

To find the words per hour, multiply the wpm (words per minute), which is 350 by 60 because there are 60 minuets in an hour.

350 * 60 = 21000

4 0
4 years ago
If AACD ~ AABE, find the value of x.
Anastaziya [24]

9514 1404 393

Answer:

  x = 16

Step-by-step explanation:

Corresponding sides are proportional.

  BE/CD = AE/AD

  20/(3x+8) = (x-1)/(x-1+27)

  20(x+26) = (3x+8)(x -1)

In standard form, this is ...

  3x^2 -15x -528 = 0

  x^2 -5x -176 = 0 . . . . . . divide by 3

  (x -16)(x +11) = 0 . . . . . . . factor

  x = 16

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This is the positive value that makes the product zero. x=-11 will also make the product 0, but gives negative segment lengths in the geometry. It is an extraneous solution.

4 0
3 years ago
Carlos traveled 347 miles to go to his cousins’ house. It took him about 5.5 hours to drive there. Estimate his average speed in
MariettaO [177]
347/5.5= 63 average miles per hour
4 0
4 years ago
9) What is the area of a square with a side length of 120 cm?​
mart [117]

Area of square = Side × Side

  • Side of square is 120 Cm.

⇛Area = 120 cm × 120 cm

⇛Area = 14400 cm²

Hence , the area of square is 14400 cm²

8 0
3 years ago
Read 2 more answers
Helppp me plsss ASAP
lilavasa [31]

Answer:o

Step-by-step explanation:

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