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Licemer1 [7]
3 years ago
6

WHERE ARE THE EXPERTS AND ACE!!!!!!! I NEED HELP PLS SHARE YO SMARTNESS!!!!! WILL GIVE BRAINLIEST AND RATE AND VOTE!!!

Mathematics
1 answer:
SSSSS [86.1K]3 years ago
5 0

Answer:

<u>Value of tan( π/3 ):</u>

<u>{ \tt{ \frac{\pi}{3} =  \frac{180}{3}  = 60 \degree }}</u>

60° lies within the first quadrant.

{ \sf{ \tan( \frac{ \pi}{3} ) = ( \frac{1}{2}  , \:  \frac{ \sqrt{3} }{2}) }}

Since it's a half:

{ \boxed{ \sf{ \tan( \frac{\pi}{3} ) =  \sqrt{3}  }}}

<u>Length</u><u> </u><u>of</u><u> </u><u>hypotenuse</u><u>:</u>

<u>{ \bf{ \sin(31 \degree) =  \frac{16.5}{h}  }} \\ { \sf{h = 32.04}}</u>

<u>Hypotenuse</u><u> </u><u>=</u><u> </u><u>3</u><u>2</u><u>.</u><u>0</u>

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Write the fraction in simplest form 4/12
GaryK [48]
4/12= 2/6=1/3 So the answer is 1/3
4 0
3 years ago
Hi, I'm often really slow at learning math and my condition makes it harder, can someone help me?
NARA [144]
The answer: 0, 4/5 and 5


Explanation: first, we factor out 2x and get: 2x(5x^2-29x+20)=0

In order for this equation to be equal to zero, either 2x must equal to zero or (5x^2-29x+20) must equal to zero

Having said that, if:
2x = 0
X=0

If:
(5x^2-29x+20) = 0
X=4/6, x=5

7 0
3 years ago
Please solve fast. Q.No. 26 and 29.<br>26. x²+5x+25/4<br>27. x²/4y²-2/3+4y²/9x²​
Usimov [2.4K]

Step-by-step explanation:

26. x²+5x+25/4 = (x + 5/2)²

29. x²/4y²-2/3+4y²/9x² = (x/2y - 2y/3x)²

6 0
2 years ago
Read 2 more answers
I need help bro!!!!!!!
konstantin123 [22]

Answer:

The one that is on the bottom half and on the right side.

Step-by-step explanation:

(0,30) to (10,0)

Because the x value 0 represents the time in which the paint job started and ends in the value 10

While the y value 30 is the amount of paint he started with and ends with 0

5 0
3 years ago
If 90 percent of automobiles in Orange County have both headlights working, what is the probability that in a sample of eight au
Marta_Voda [28]

Answer:

P(X \geq 7) = P(X=7) +P(X=8)

And we can find the individual probabilities using the probability mass function

P(X=7)=(8C7)(0.9)^7 (1-0.9)^{8-7}=0.3826  

P(X=8)=(8C8)(0.9)^8 (1-0.9)^{8-8}=0.4305  

And replacing we got:

P(X \geq 7) = P(X=7) +P(X=8)=0.3826 +0.4305=0.8131

Step-by-step explanation:

Previous concepts  

The binomial distribution is a "DISCRETE probability distribution that summarizes the probability that a value will take one of two independent values under a given set of parameters. The assumptions for the binomial distribution are that there is only one outcome for each trial, each trial has the same probability of success, and each trial is mutually exclusive, or independent of each other".  

Solution to the problem

Let X the random variable of interest "number of automobiles with both headligths working", on this case we now that:  

X \sim Binom(n=8, p=0.9)  

The probability mass function for the Binomial distribution is given as:  

P(X)=(nCx)(p)^x (1-p)^{n-x}  

Where (nCx) means combinatory and it's given by this formula:  

nCx=\frac{n!}{(n-x)! x!}  

And for this case we want to find this probability:

P(X \geq 7) = P(X=7) +P(X=8)

And we can find the individual probabilities using the probability mass function

P(X=7)=(8C7)(0.9)^7 (1-0.9)^{8-7}=0.3826  

P(X=8)=(8C8)(0.9)^8 (1-0.9)^{8-8}=0.4305  

And replacing we got:

P(X \geq 7) = P(X=7) +P(X=8)=0.3826 +0.4305=0.8131

7 0
3 years ago
Read 2 more answers
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