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Blababa [14]
2 years ago
12

I need help on this ASAPPPPPPP!!!!!!

Mathematics
2 answers:
trasher [3.6K]2 years ago
8 0

Answer:

9.23456, 1/2, 89/10 is rational

-100, -34, -4,-8/4, are integers

(Pi), 0.33333... 0.456783..., square root of 8, is irrational

3, √4, 49/7,  is whole

I don't know where 0 is but I am guessing it is whole

stealth61 [152]2 years ago
5 0

Answer:

this is hard sorry

Step-by-step explanation:

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Simplify the expression by using a double-angle formula or a half-angle formula. (a) 2 tan(5°) 1 − tan2(5°)
antoniya [11.8K]

The question is related to trigonometry and we have to use the formula of double angle .

Here we use double angle formula of tangent function which is

tan(2x) = \frac{2tan(x)}{1-tan^2(x)}

Given expression is

\frac{2tan (5 \degree)}{1-tan^2(5 \degree)}

Comparing it with double angle formula, we will get x = 5

SO the required expression is equal to

\frac{2tan (5 \degree)}{1-tan^2(5 \degree)}  =tan(2*5 )

\frac{2tan (5 \degree)}{1-tan^2(5 \degree)}  =tan(10 )

So the answer is tan(10) .

6 0
3 years ago
Simplify completely.<br> (2 + 3i) + (-4+i)
Aleksandr-060686 [28]

Answer:

-2+4i

Step-by-step explanation:

Simplify by combining the real and imaginary parts of each expression.

7 0
3 years ago
Read 2 more answers
Craig scored 12 points in a game. Marla scored twice as many points as Craig but 5 fewer than Nelson scored. Write an expression
asambeis [7]
First write what are given from the question
We write "<span>Craig scored 12 points in a game" as
</span>⇒ c = 12 <em>(first equation)</em>
We write "<span>Marla scored twice as many points as Craig but 5 fewer than Nelson scored" as
</span>⇒ m = 2c <em>(second equation)</em>
⇒ m = n - 5 <em>(third equation)</em>
<span>
Second, find the expression for n based on what we write above
</span>From the second and third equation
⇒ m = m
⇒ n - 5 = 2c
Subtitute from the first equation
⇒ n - 5 = 2c
⇒ n - 5 = 2(12)
⇒ n - 5 = 24

This is the expression to find how many nelson scored
n - 5 = 24
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</span>
4 0
3 years ago
Put a point on the numbet line to show the answer to this subtraction problem 3 8/12 - 3/6​
Gnoma [55]

the answer is: 3.1666666667

4 0
3 years ago
Which of these three expressions are equivalent?
grin007 [14]

Answer:

is this good?? i mean is it correct

8 0
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