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Mice21 [21]
3 years ago
12

Anyone know how to do this??

Mathematics
1 answer:
Ghella [55]3 years ago
6 0

Answer:

csc²(x)

Step-by-step explanation:

csc(x) = 1/sin(x)

sin²(x) + cos²(x) = 1

=> cos²(x) = 1 - sin²(x)

cos(2x) = cos²(x) - sin²(x) = (1 - sin²(x)) - sin²(x) =

= 1 - 2×sin²(x)

=> 2×sin²(x) = 1 - cos(2x)

sin²(x) = 1/2×(1-cos(2x))

=> 1 - cos(2x) = 2×(1/2×(1-cos(2x)) = 2×sin²(x)

=> 2 / (1-cos(2x)) = 2 / (2×sin²(x)) = 1/sin²(x) =

= 1/sin(x) × 1/sin(x) = csc(x)×csc(x) = csc²(x)

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Jessie says to round 736,400 to the nearest ten thousand ,he will round to 770,000. is he right? explain.
djverab [1.8K]

no because if your rounding 736,400 it will be 740,000 if its 4 or less you let it rest if its 5 or more it rises


3 0
3 years ago
Plss solve this problem... will mark brainiest
Sonja [21]

Answer:

87.97 or 88

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
There are white, blue, and red boats in a marina. Two-thirds of the boats in the marina are white, five-eighths of the remaining
sammy [17]
X = total boats
2/3x are white....so the remaining boats = 1/3x
5/8 of the remaining boats are blue.....5/8 * 1/3 = 5/24x are blue

2/3 + 5/24 = 16/24 + 5/24 = 21/24 are blue and white......so 3/24 are red
3/24x = 6
x = 6 * 24/3
x = 144/3
x = 48 total boats in the marina <==

2/3(48) = 32 white
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3/24(48) = 6 red


6 0
3 years ago
Anyone know this one ?????
PIT_PIT [208]

\sqrt{3} is an irrational or not rational number.

Answer choice C is correct

5 0
3 years ago
Read 2 more answers
How do dis problem? 6.4n-10=4.4n+6
nlexa [21]

Simplifying

6.4n + -10 = 4.4n + 6

Reorder the terms:

-10 + 6.4n = 4.4n + 6

Reorder the terms:

-10 + 6.4n = 6 + 4.4n

Solving

-10 + 6.4n = 6 + 4.4n

Solving for variable 'n'.

Move all terms containing n to the left, all other terms to the right.

Add '-4.4n' to each side of the equation.

-10 + 6.4n + -4.4n = 6 + 4.4n + -4.4n

Combine like terms: 6.4n + -4.4n = 2n

-10 + 2n = 6 + 4.4n + -4.4n

Combine like terms: 4.4n + -4.4n = 0.0

-10 + 2n = 6 + 0.0

-10 + 2n = 6

Add '10' to each side of the equation.

-10 + 10 + 2n = 6 + 10

Combine like terms: -10 + 10 = 0

0 + 2n = 6 + 10

2n = 6 + 10

Combine like terms: 6 + 10 = 16

2n = 16

Divide each side by '2'.

n = 8

Simplifying

n = 8

<em>-ur local skatergirl, Rin:)</em>

7 0
3 years ago
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