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IrinaK [193]
3 years ago
9

Plz Help! Ill give brainiest to whoever answers!!!

Mathematics
2 answers:
kenny6666 [7]3 years ago
7 0

1. 54

2. 63.5

3. 23

4. 1.80125

sladkih [1.3K]3 years ago
3 0

Answer: Just find the mean by using math

Step-by-step explanation:

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Cot(x)=-3. find sin(x)
ASHA 777 [7]

Answer:

sin(x)=1/\sqrt10

Step-by-step explanation:

The trigonometric identities involve trigonometric functions. Here we will be using Trigonometric identity

sin²x  = 1 /( 1+cot²x )

now cot(x)= -3

⇒ cot²x= (-3)²

⇒ cot²x= 9

sin²x= 1/( 1+9)

⇒ sin²x = 1/10

taking under root on both the sides we get

√sin²x=\sqrt1/\sqrt10

⇒ sin(x)=± 1/\sqrt10

6 0
3 years ago
Gabriella wants to buy socks for $13. She gives the cashier $20. What is her change?​
pychu [463]

Answer:

Gabriella has $7 in change.

Step-by-step explanation:

First minus $13 from $20.

Then get $7 left over.

Finally $7 is your awnser.

7 0
3 years ago
Please help me with this question
Sergio039 [100]

Isn't that simply asking you to compute 30% of 20?

30              x

-----   =    ------

100           20


100x = 600

      x = 6


So, out of those 20 numbers, you would expect that 6 of them would begin with the digit 1.

7 0
3 years ago
If I get paid $150 every Sunday. How much will I have on November 26, 2022 ? Starting from today.
tino4ka555 [31]

Answer:

5,550 dollars

Step-by-step explanation:

5 0
2 years ago
F(x)= x^2*2^-x find d/dx using the product rules
Sergio039 [100]

Step-by-step explanation:

f(x) =  {x}^{2} 2 {}^{ - x}  \\  der= 2x2 {}^{ - x} +  {x}^{2}  2 {}^{ - x} in2

5 0
1 year ago
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