Hurry I am running out of time! I have 10 minutes.

Answers

Answer 1
Answer: What it doooooooooooooo

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-9=2x-5Please help me now.....
3. A metal fabricating plant currently has five major pieces under contract each with a deadline for completion. Let X be the number of pieces completed by their deadlines, and suppose it's PMF p(x) is given by x 0 1 2 3 4 5 p(x) .05 .1 .15 .25 .35 .1 (a) Find and plot the CDF of X. (b) Use the CDF to find the probability that between one and four pieces, inclusive, are completed by their deadline

Solve for x x-23=17 NEED TO KNOW FAST PLEASE!!!!

Answers

Answer:

x = 40

Step-by-step explanation:

Adding 23 to both sides gives us:

x - 23 + 23 = 17 + 23

x = 40

Answer:

\boxed{ \bold{ \bold{ \sf{x = 40}}}}

Step-by-step explanation:

\sf{x - 23 = 17}

Move constant to right hand side and change it's sign

\sf{x = 17 + 23}

Add the numbers

\sf{x = 40}

Hope I helped!

Best regards!!

What is the 7th term in the series? 15,35,55

Answers

5 is the answer just because counting the comas

A city council is deciding whether or not to spend additional money to reduce the amount of traffic. The council decides that it will increase the transportation budget if the amount of waiting time for drivers exceeds 18 minutes. A sample of 26 main roads results in a mean waiting time of 21.1 minutes with a sample standard deviation of 5.4 minutes. Conduct a hypothesis test at the 5% significance level.

Answers

Answer:

t = 2.9272 > 1.708 at 25 degrees of freedom

null hypothesis is rejected

The council decides that it will increase the transportation budget if the amount of waiting time for drivers is not exceeds 18 minutes

Step-by-step explanation:

Step (i):-

A sample of 26 main roads results in a mean waiting time of 21.1 minutes with a sample standard deviation of 5.4 minutes.

Given sample size 'n' = 26

The mean of the sample 'x⁻ = 21.1 min

Standard deviation of the sample 'S' = 5.4 min

The Population mean 'μ' = 18min

Step(ii):-

Null hypothesis: H₀ :  The council decides that it will increase the transportation budget if the amount of waiting time for drivers exceeds 18 minutes.

'μ' > 18min

Alternative hypothesis :H₁:  

'μ' <18min

Level of significance : ∝=0.05

Degrees of freedom γ = n-1 = 26-1 =25

The test statistic

 t  = (x^(-)-mean )/((S)/(√(n) ) )

t  = (21.1-18)/((5.4)/(√(26) ) )

t = 2.9272

Step(iii):-

The tabulated value t = 1.708 at 25 degrees of freedom

t = 2.9272 > 1.708 at 25 degrees of freedom

Null hypothesis is rejected at  5% significance level of significance

Conclusion:-  

The council decides that it will increase the transportation budget if the amount of waiting time for drivers is not exceeds 18 minutes

Which function is a quadratic function?P(x)=2x(×^2+6)+1
M(x)=-4(x+3)-2
t(x)=-8x^2(x^2-6+1
H(x)=3x(x-2)-4

Answers

The correct answer is:  [D]:  " H(x) = 3x(x - 2) - 4 " .
__________________________________________________
Note:  A "quadratic function" takes the form of:
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     f(x)  =  ax²  + bx  + c ;
_________________________________________________
Answer choice:  [D]:  " H(x) = 3x(x - 2) - 4 " ; 

takes this form:
_________________________________________________
    " H(x) = 3x(x - 2) - 4 " ;  

→  " 3x(x - 2) - 4 " ; 

Note the "distributive property" of multiplication:
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  a(b + c)  =  ab  +  ac ;  AND

  a(b -  c)  =  ab  -   ac ;
_________________________________________________
 
 → As such;

    " 3x(x - 2)  =  (3x * x)  -  (3x * 2)  = 3x² - 6x;

So, we can rewrite the expression:

→  " 3x(x - 2) - 4 " ;  

as:  →  " 3x² - 6x - 4 ; 

And the entire function as:

H(x) = 3x(x - 2) - 4 ; 

as:  

H(x) = 3x² - 6x - 4 ; 

Which takes the form of a "quadratic function" ; 

→ f(x) = ax² + bx + c ; 

in which:  a = 3 ;   b = - 6 ;  c = - 4 .
____________________________________________________

Follow these steps to prove the given quadrilateral is a parallelogram 1. determine the slope of AB

Answers

Answer:

1.) 4/3

2.) 4/3

3.) 5

4.) 5

Step-by-step explanation:

I just took the test

Answer:

4/3

Step-by-step explanation:

i just did the assignment

HELP!!! find the value of x

Answers

Answer:

don't know

.....................

Answer:

x = 12

Step-by-step explanation:

Consider three orthogonal triangles (see picture)

1. The smallest triangle

2. The medium triangle

3. The big triangle that holds both triangles.

All are orthogonal (or right triangles) so you can use Pythagoras Theorem:

"The area of the square whose side is the hypotenuse is equal to the sum of the areas of the squares on the other two sides"

Use Pythagoras theorem on triangle 1.

a^(2)  = 3^(2)  + 6^(2)  = 45

Now user Pythagoras on triangle 2.

b^(2)  = x^(2)  + 6^(2) = x^(2) + 36

Now use Pythagoras on triangle 3 (the big triangle).

(3 + x )^(2)  = a^(2)  + b^(2)\nx^(2)  + 6x + 9 =  a^(2)  + b^(2)

Now replace the values for a^(2) and b^(2) from the two equations derived from triangle 1 and 2:

x^(2)  + 6x + 9 =  45  + x^(2) + 36

The two x^(2) get cancelled out, so:

6x + 9 =  45 + 36\nx = 12

TA DA!