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dolphi86 [110]
3 years ago
10

Anyone know the answer?

Mathematics
1 answer:
Harlamova29_29 [7]3 years ago
6 0

Answer:

26.97

find side km using cos,after you find km you can then use tan to find the angle

hope this helps

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-9 + 8.3 i just need this and i’m so so confused yes i suck at math lol
Strike441 [17]

Answer:

-0.7 is the answer

Step-by-step explanation:

=>-9+8.3

=>-0.7

4 0
3 years ago
Find the four real zeros of the polynomial. f(x) = x4 + 6x3 - 3x2 -52x - 60
OLEGan [10]
The function is 

f(x)=x^4+6x^3-3x^2-52x-60

The "zeros" of a function, are the values of x, for which f(x)=0


According to the "Rational Root Theorem", the rational roots of f, are factors of 60.

That is, when trying to find the roots of a polynomial function, it is a very good idea to first check the factors of the constant term.


All numbers shown in the choices are factors of 60, so we will solve the problem by trial:


f(2)=2^4+6\cdot2^3-3\cdot2^2-52\cdot2-60=16+48-12-104-60 \neq 0

2 is not a root, so we eliminate choices A and D, 

Choices B and C are almost equal, with only 1 different number, so let's check whether 5 is a root or not:


f(5)=(5)^4+6\cdot(5)^3-3\cdot(5)^2-52\cdot(5)-60

=625+750-75-160-60=60


but 

f(-5)=(-5)^4+6\cdot(-5)^3-3\cdot(-5)^2-52\cdot(-5)-60

=625-750-75+160-60=0

So the right choice is B
7 0
4 years ago
Is the statement {0}=ø true or false
Schach [20]

Answer:

False

Step-by-step explanation:

This statement is false

{0}=ø

The first parts {0} says there is a zero in the set

The second item says it is an empty set

5 0
4 years ago
A standard piece of paper is 0.05 mm thick. Let's imagine taking a piece of paper and folding the paper in half multiple times.
tatyana61 [14]

Answer:

(a)g(n)=0.05\cdot 2^n

(b)g^{-1}(n)=\log_{2}20g(n)

(c)43 times

Step-by-step explanation:

<u>Part A</u>

The paper's thickness = 0.05mm

When the paper is folded, its width doubles (increases by 100%).

The thickness of the paper grows exponentially and can be modeled by the function:

g(n)=0.05(1+100\%)^n\\\\g(n)=0.05\cdot 2^n

<u>Part B</u>

<u />g(n)=0.05\cdot 2^n\\2^n=\dfrac{g(n)}{0.05}\\ 2^n=20g(n)\\$Changing to logarithm form, we have:\\\log_{2}20g(n)=n\\$Therefore:\\g^{-1}(n)=\log_{2}20g(n)<u />

<u />

<u>Part C</u>

If the thickness of the paper, g(n)=384,472,300,000 mm

Then:

g^{-1}(n)=\log_{2}20g(n)\\g^{-1}(n)=\log_{2}20\times 384,472,300,000\\=\dfrac{\log 20\times 384,472,300,000}{\log 2} \\g^{-1}(n)=42.8 \approx 43\\n=43

You must fold the paper 43 times to make the folded paper have a thickness that is the same as the distance from the earth to the moon.

3 0
3 years ago
Last one help please????????
guajiro [1.7K]

Answer:

The answer would be 23.

Step-by-step explanation:

All numbers with only two factors are prime numbers.

23 is the only prime number.

3 0
3 years ago
Read 2 more answers
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