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nikitadnepr [17]
3 years ago
11

I will give you brainlist 5✨ and a thx so plz help me it has to be done by today.

Mathematics
1 answer:
borishaifa [10]3 years ago
3 0

i have a question for u

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Find sin theta if cos theta is 4/5
Dima020 [189]

Answer:

Step-by-step explanation:

hello :

cos²θ +sin²θ = 1 and cosθ =4/5

(4/5)² + sin²θ = 1 so : sin²θ = 1 - 16/25

sin²θ = 9/25 = (3/5)²

sinθ = 3/5 or sinθ = - 3/5 because : (3/5)²= (- 3/5)²= 9/25

5 0
3 years ago
Find the value: 3/2 ÷ 5/8 (write your answer as a fraction AND as a decimal number)
Vikki [24]

Answer:

Decimal : 2.4

Fraction: 2 4/10 or 2 2/5

Step-by-step explanation:

hope this helps :) plz mark brainliest to help my rank

4 0
2 years ago
Read 2 more answers
Please help math experts need your help 15 points !
Alinara [238K]

Answer:

12 = -3 - 3x

Step-by-step explanation:

Same concept as the last question I answered. First, let's derive a formula from the given model. So we have 3 negative x and 3 negative 1 which equal to 12 positive ones, this can be written as:

-3x - 3 = 12

which can be rewritten as

12 = -3 - 3x

7 0
3 years ago
A square window has a perimeter of (8x+12) feet. Write an expression that represents the side length of the window (in feet). Pl
luda_lava [24]
Perimeter of a square = 4L
4L = (8x+12)ft
L= (2x+3)ft
5 0
3 years ago
Find the perimeter of the figure below, in centimeters.
SIZIF [17.4K]

Answer:

The answer to this is 127.8

Step-by-step explanation:

Perimeter is the outside of a shape so adding them all up would equal to 127.8

5 0
2 years ago
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