All categories

3 years ago

Pls help help Im crying and i need help please im nevous please help me

Mathematics

2 answers:

aliya0001 [1]3 years ago

8 0

Answer:

Look in step by step

Step-by-step explanation:

The way to read coordinates is to know these steps.

(#,#)

the first number is the x number which on the graph is the horizontal line and the second number is the y number which on the graph is vertical.

Theres also negatives which is the same thing but its on the lower side of the graph.

So now for example you take -4,-9.

To make it easy move the dot to the center or the (0,0) cords. Then follow the numbers. When you start on the zero cord you will look at the numbers, it says -4 so drag the dot 4 units to the left where the line says -4. Then drag it down 9 units so its on the cords. Hope this helps!!

Evgesh-ka [11]3 years ago

8 0

Answer:

Ok so for (0,8 1/2), drag the dot from the middle, up to 8 but then move up a little bit more so it is between the 8 and 9. Next, for (-4, -9) drag one of the other dots to the -4 on the horizontal line, but then move it down to the -9 on the vertical line. And finally for (-6,5), you should put the last dot on the -6 on the horizontal line, but move it up five spaces until it is at the 5 on the vertical line.

I hope I was able to help you, if you still do not understand I will try to explain a little bit more.

You might be interested in

Someone plz help I rlly need to finish

bekas [8.4K]

Since TSQ and QSR are supplementary, they give 180 when summed. TSQ is 150, so QSR must be 30.

Therefore, you have

$\tan(30)=\dfrac{\sin(30)}{\cos(30)}=\dfrac{\frac{1}{2}}{\frac{\sqrt{3}}{2}} = \dfrac{1}{2}\cdot\dfrac{2}{\sqrt{3}}=\dfrac{1}{\sqrt{3}}=\dfrac{\sqrt{3}}{3}$

6 0

3 years ago

A square garden has an area of 103 square feet.

ladessa [460]

This value is $\sqrt{103}$ , or 10.1.

6 0

3 years ago

Q1 ).The number of white corpuscles on a slide has a Poisson distribution with mean 4.5.

dybincka [34]

The most likely number of white corpuscles om a slide is 4 ,the probability of obtaining this number 4 is 0.190 , probability of obtaining at least two white corpuscles in total on the two slides is 0.999.

Attending to the first question

<h3>What is Poison Distribution ?</h3>

Poisson Distribution is used for an independent event to find its probability in a fixed interval of time .

Let X be the number of white corpuscles on a slide, then X~Pois(4.5)

a) We have to find the most likely number of white corpuscles on a slide , which means expected value of Poise(4.5)

The expected value of Poisson distribution with mean λ is equal to λ.

Therefore the expected value is 4.5.

the number of corpuscles cannot be non-integer,

To find the most likely number in one experiment,

determine it between 4 and 5.

In the common case P(X=k) when X~Poise(λ) is equal to $\frac {\lambda^{k}} {k!}}e^{-\lambda}$

, $\rm e^{-\lambda}$ is a constant in terms of k

so the point is to find out what is greater : ${\frac {4.5^4} {4!}}$ or ${\frac {4.5^5} {5!}}$

${\frac {4.5^5} {5!}}={\frac {4.5^4} {4!}} * {\frac {4.5} 5}$

${\frac {4.5} 5} < 1$

So, ${\frac {4.5^4} {4!}}$ is greater

So, the most likely number of white corpuscles om a slide is 4.

b) the probability of obtaining this number 4 is

P(X = 4)

= ${\frac {4.5^4} {4!}}e^{-4.5}=0.190$

c) Let Y be the total number of corpuscles on two screens.

$Y=X{\scriptscriptstyle 1}+X{\scriptscriptstyle 2}Y=X1+X2$ ,

where $X{\scriptscriptstyle 1}, X{\scriptscriptstyle 2}$ - number of corpuscles on the first and second slide respectively.

Then Y = Poise(4.5 + 4.5) = Poise(9)

the probability, correct to three decimals places of obtaining at least two white corpuscles in total on the two slides

The goal is to find P(Y ≥ 2)

Therefore the probability less than 2 will be subtracted from the total probability i.e. 1

P(Y ≥ 2 ) = 1 - P (Y=0) - P(Y=1)

= $1-{\frac {9^0} {0!}}e^{-9}-{\frac {9^1} {1!}}e^{-9}=1-10e^{-9}=0.999$

To know more about Poisson Distribution

brainly.com/question/17280826

#SPJ1

7 0

2 years ago

what is one and one half divided by one and one sixth and what is three fourths divided by one and three eights (brainliest will

butalik [34]

1 1/2 divided by 1 1/6 equals 1.28571429
Rounded: 1.28, 1.29, or 1.30 (depends on what they ask for)

3/4 divided by 1 3/8 equals 0.54545455
Rounded: 0.54 or 0.55

6 0

4 years ago

Please Help With This!!!<br> Will try to give out brainliest!!!

serious [3.7K]

Second, fourth and fifth.

2^4 = 2*2*2*2 =16
4^2= 4*4 =16
16^1= 16=16

3 0

2 years ago

Read 2 more answers