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alisha [4.7K]
2 years ago
11

Picture explains everything please help ASAP

Mathematics
2 answers:
aliina [53]2 years ago
6 0
The answer is choice B
Lubov Fominskaja [6]2 years ago
3 0

Answer: <em>Choice B is correct. </em>

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Find the Value of the letter in the following questions. Give your answers to 3 s.f.
Elis [28]

Answer:

i = 75.7°

h = 48.2°

Step-by-step explanation:

==>To find i, use the sine rule for finding angles: sin(A)/a = sin(B)/b

Where,

a = 7.2cm

sin(A) = i

b = 6.5cm

sin(B) = sin(61) = 0.8746

Thus:

sin(A)/7.2 = 0.8746/6.5

Multiply both sides by 7.2

sin(A) = (0.8746*7.2)/6.5

sin(A) = 0.969 (3 s.f)

A = i° = sin^-1(0.969) = 75.7 (3 s.f)

==>To find h, use the Cosine rule for angles:

Cos(C) = (a²+b²-c²)/2ab

cos(C) = h°, a = 4, b = 4.5, c = 3.5

a² = 16

b² = 20.25

c² = 12.25

cos(C) = (16+20.25-12.25)/(2*4*4.5)

cos(C) = 24/36

cos(C) = 0.667 (3 s.f)

C = h° = cos^-1(0.667) = 48.2° (3 s.f)

4 0
3 years ago
2) You hired an interior designer from Atlanta Interior Design Inc. to help decorate the new game
Sonja [21]
Maybe 833. I don’t know if I’m correct or not plz tell me
4 0
3 years ago
Read 2 more answers
A local elementary school is selling tickets to a play. Ticket's cost $2 for kids and $3 for adults. The first day of sales, the
ioda
2x +3y =70
2(0) +3y=70
3y=70
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3. 3
Y=23.3 repeating
6 0
4 years ago
Help on this math stuff
liq [111]

Plan A would be better


6 0
4 years ago
Ted, the postman, has 110 letters to deliver. If Ted can deliver 10 letters in 5 minutes,
valina [46]

Answer:

55

Step-by-step explanation:

There are 11 tens in 110, so 11 times 5 is 55.

8 0
3 years ago
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