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lana66690 [7]
3 years ago
11

Solve for A sinA=0.8829

Mathematics
1 answer:
aleksley [76]3 years ago
5 0

Answer:

0.8229

Step-by-step explanation:

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: Cho tam giác ABC vuông tại C, trong đó AC = 0,9m, BC = 1,2m. Tính các tỉ số lượng giác của góc B, từ đó suy ra các tỉ số lượng
Xelga [282]

Answer:

Step-by-step explanation:

Vì tam giác ABC vuông tại C nên ta áp dụng định lí pitago=> AB²=AC²+BC²=0.9²+1.5²=3.06=>AB= (3 căn bậc hai của 34)/10

sin B=AC/AB=(3 căn bậc hai của 34)/34

cos B=BC/AB

tan B= AC/BC

cot B= BC/AC

Tương tự suy ra tỉ số lượng giác góc A

5 0
3 years ago
What is the product?<br> (3x-5)(22-7x+1)
Gelneren [198K]

answer

1. expand the equation

3x(22-7x+1)-5(22-7x+1)

66x-21x²+3x-110+35x-5

104x-21x²-115

6 0
2 years ago
A bicycle store costs ​$4000 per month to operate. The store pays an average of ​$80 per bike. The average selling price of each
Andrews [41]
B=45.............................
3 0
3 years ago
Find the value of x. Leave answers if necessary in the simplest radical form.
shtirl [24]

Answer:

<h2>x = 10√3</h2>

<u>Step-by-step explanation:</u>

cos 45° = base / hypotenuse

1/√2 = base / 15√2

15√2 = base√2

Base, = 15

sin 60° = perpendicular / hypotenuse

hypotenuse = x

√3/2 = 15 / x

x √3 = 30

x = 30 / √3

x = 10√3

6 0
3 years ago
Read 2 more answers
5x(4-2)2/(-4-(-8)) HELP PLEASE
mr Goodwill [35]

Answer:

=5x

Step-by-step explanation:

5x(4−2)(2)

−4−(−8)

=5x :)

5 0
3 years ago
Read 2 more answers
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