Help help help help I have a lot of stuff to do and I need help

Answer:

i think its 29

Step-by-step explanation:

180-64=116

116/2=58

58/2=29

Answer:What is the value of x?

Step-by-step explanation: x" is often used in algebra to mean a value that is not yet known. It is called a "variable" or sometimes an "unknown". In x + 2 = 7, x is a variable, but we can work out its value if we try! A variable doesn't have to be "x", it could be "y", "w" or any letter, name or symbol.

Answer:

La respuesta es treinta coma seis.

Espero que esto ayude.

Answer:

c. 0.62%

Step-by-step explanation:

We have the standard deviation for the sample, which means that the t-distribution is used to solve this question.

The first step to solve this problem is finding how many degrees of freedom, we have. This is the sample size subtracted by 1. So

df = 30 - 1 = 29

90% confidence interval

Now, we have to find a value of T, which is found looking at the t table, with 29degrees of freedom(y-axis) and a confidence level of [tex]1 - \frac{1 - 0.9}{2} = 0.95[/tex]. So we have T = 1.6991

The margin of error is:

[tex]M = T\frac{s}{\sqrt{n}}[/tex]

Sample of 30, standard deviation of 2%.

Then

[tex]M = T\frac{s}{\sqrt{n}} = 1.6991\frac{2}{\sqrt{30}} = 0.62[/tex]

0.62%, so option c.

Answer:

1/6

Step-by-step explanation:

Answer:

Step-by-step explanation:

20 * ((2*20)-6)

20*34

680

Answer:

0.0430 = 4.30% probability that exactly 2 of the 4 receiving-sets selected by the engineer are defective.

Step-by-step explanation:

Sets are chosen from the sample without replacement, which means that the hypergeometric distribution is used to solve this question.

Hypergeometric distribution:

The probability of x successes is given by the following formula:

[tex]P(X = x) = h(x,N,n,k) = \frac{C_{k,x}*C_{N-k,n-x}}{C_{N,n}}[/tex]

In which:

x is the number of successes.

N is the size of the population.

n is the size of the sample.

k is the total number of desired outcomes.

Combinations formula:

[tex]C_{n,x}[/tex] is the number of different combinations of x objects from a set of n elements, given by the following formula.

[tex]C_{n,x} = \frac{n!}{x!(n-x)!}[/tex]

In this question:

Lots of 50 means that [tex]N = 50[/tex]

5 are defective, which means that [tex]k = 5[/tex]

4 are selected, which means that [tex]n = 4[/tex]

Find the probability that exactly 2 of the 4 receiving-sets selected by the engineer are defective.

This is [tex]P(X = 2)[/tex]. So

[tex]P(X = x) = h(x,N,n,k) = \frac{C_{k,x}*C_{N-k,n-x}}{C_{N,n}}[/tex]

[tex]P(X = 2) = h(2,50,4,5) = \frac{C_{5,2}*C_{45,2}}{C_{50,4}} = 0.0430[/tex]

0.0430 = 4.30% probability that exactly 2 of the 4 receiving-sets selected by the engineer are defective.

Answer:

73%

Step-by-step explanation:

40/55 x 100

= 72.72727273

Rounded = 73%

Hope this helps!

Answer: Median is 26,5 and modes are 24 and 29

Step-by-step explanation: In increasing order numbers are

22, 24 24, 25 , 28, 29 , 29 , 34. Because amount of number is even

median is (25 + 28) / 2 = 26,5 and modes are 24 and 29 because both

numbers exist twice

Answer:

7 millimeters

Step-by-step explanation:

Perimeter is the distance around an object.

The object is a square so all sides are equal. This means that we can do 28mm / 4 and get our answer of 7 millimeters.

middle left my guy lol..

Step-by-step explanation:

18 = 3 + 5x

15=5x

x=15/5

x=3

[tex]\implies {\blue {\boxed {\boxed {\purple {\sf {C) \:x\:=\:3}}}}}}[/tex]

[tex]\large\mathfrak{{\pmb{\underline{\red{Step-by-step\:explanation}}{\red{:}}}}}[/tex]

[tex]18 = 3 + 5x[/tex]

➺[tex] \: 5x = 18 - 3[/tex]

➺[tex] \: 5x = 15[/tex]

➺[tex] \: x = \frac{15}{5} [/tex]

➺[tex] \: x = 3[/tex]

[tex]\sf \bf {\boxed {\mathbb {To\:verify:}}}[/tex]

[tex]18 = 3 + 5x[/tex]

➺[tex] \: 18 = 3 + 5 \times 3[/tex]

➺[tex] \: 18 = 3 + 15[/tex]

➺[tex] \: 18 = 18[/tex]

➺[tex] \: L.H.S.=R. H. S[/tex]

Hence verified.

[tex]\large\mathfrak{{\pmb{\underline{\orange{Mystique35 }}{\orange{❦}}}}}[/tex]

The 1 in y = 1/7x+1, is the y-intercept. Its coordinates are (0,1). 1/7 means you are going up 1 and to the right 7, since it's positive.

On a graph, it looks like the graph above.

Answer:

Step-by-step explanation:

Let us first find the hypotenuses of the right triangle.

[tex]c=\sqrt{12^2+9^2} =\sqrt{225} = 15[/tex]

[tex]sin(theta) = 12/15 = 4/5\\cos(theta) = 9/15 = 3/5\\tan(theta) = 12/9 = 4/3\\csc(theta) = sin(theta)^{-1} = 5/4\\sec(theta) = cos(theta)^{-1} = 5/3\\cot(theta) = tan(theta)^{-1} = 3/4[/tex]

3/8 Wrench should fit a 1/4 nut!

Step-by-step explanation:

Answer:

12xy

Step-by-step explanation:

Product of [x y] [1 2] is

(xy)×(12)=12xy

Answer:

82.64

Step-by-step explanation:

Mean = 80 ; σ² = 36 ; σ = √36 = 6

Using the relation :

P(Z < x) = (x - mean) / standard deviation

P(Z < x) = 0.67

Z = invNorm(0.67) = 0.44

Hence,

0.44 = (x - 80) / 6

Cross multiply :

6 * 0.44 = x - 80

2.64 = x - 80

2.64 + 80 = x

82.64 = x

Hence, X = 82.64

The surface area of given figure = 3×Area of rectangle + 2×area of triangle base.

Surface area = 3×6×3+2×15.6

Surface area = 85.2 cm²

Answer:

i dont get it sorry

Step-by-step explanation:

Answer:

2/5

Step-by-step explanation:

Slope of line is also called the gradient of line.

The formula of gradient of a straight line is always (y1-y2)/(x1-x2)

Answer:

Ian SomerhalderHappy “3rd” Birthday to our smart, energetic, lively and mischievous Carmelo!!!

In these three short years, this little boy has brought so much joy to all of our lives. The one that makes sure we all get our cardio workout in everyday because of his inquisitive self. I would not have it any other way!! Carmelo, thank you for making us COMPLETE! ❤️ May God bless you every day of your life my son!

Answer:2500

Step-by-step explanation:5 x 500 = 2500

Answer:

Can you please organize them so that the exponents are marked as x^2?

Step-by-step explanation:

To me, none of this is in standard form because the numbers are before the variables.

Answer:

C. 4 because line o serve as the vertex for each angle there.

Answer:

Step-by-step explanation:

8m

Answer:

2100 seconds

Step-by-step explanation:

4:30 P.M. → 5:05 P.M. there are 35 minutes in between.

1 minute = 60 seconds

35 minutes × 60 seconds = 2100 seconds

Answer:

25

Step-by-step explanation:

the formula for the hypotenuse of a triangle is

a^2+b^2=c^2

plug in what we know

7^2+24^2=c^2

49+576=c^2

625=c^2

c=25

hope this helps

Answer:

(x+9)^2 + (y+6)^2

       9           4        =1

Step-by-step explanation:

I believe this is correct, if not feel free to let me know and I will fix it. I'm sorry in advance if it is incorrect.

Answer:

48

Step-by-step explanation:

x1 = 20 ; y1 = 12  

x2 = ? ; y2 = 5

[tex]\frac{x_{1}}{x_{2}}=\frac{y_{2}}{y_{1}}\\\\\frac{20}{x_{2}}=\frac{5}{12}\\\\20 *12 = x_{2}*5\\\\\frac{20*12}{5}=x_{2}\\\\4*12=x_{2}\\\\x_{2}=48[/tex]

Answer:

he will need 125 college tor sheets

3,974 / 32 =124.1875

I'm not sure about the second part its a little unclear.

Answer:

Step-by-step explanation:

3,974 / 32 = 124 R 6

I think they should give the remainder (6) away to other people or keep it and put it somewhere...