open this n help me out

Answer:

7.3%

Step-by-step explanation:

to get this percentage, we need to use the z-score calculation;

z-score = (x-mean)/SD

mean = 25.10 , SD = 0.2

For diameter 24.60

z-score = (24.6-25.10)/0.2 = -0.5/0.2 = -2.5

For diameter 25.40

z-score = (25.4-25.1)/0.2 = 1.5

So the proportion that will satisfy the specifications will be;

P(-2.5 < z < 1.5)

At this point, we use the standard normal table

P(-2.5 < z < 1.5) = P (z<1.5) - P (Z < -2.5)

From standard normal table;

P(Z < 1.5) = 0.9332

P(z < -2.5) = 0.0062

P(-2.5 < z < 1.5) = 0.9332 - 0.0062 = 0.927

So the proportion that meets specification = 92.7% ( same as 0.927)

Proportion failing to meet specification = 100- 92.7% = 7.3%

Answer: The percentage of ball bearings fail to satisfy the contract specifaction is 7.3 %.

Step-by-step explanation:

First we need to find the standard score of 24.60 and 25.40. Using Standard Score formula.

[tex]\frac{24.60 - 25.10}{.20} =-2.5\\\\\frac{25.4 - 25.10}{.20}=1.5[/tex]

now we need to find the percentages of these Z scores.

-2.5 = .0062 or 00.62%

1.5 = .9332 or 93.32%

now we subtract these two to get the in between percentage.

.9332 - .0062 = .927 or 92.7% is what doesnt fail to satifsy the contract spefications! But to find what does fail to satisfy we have to subtract it by 100% or 1.

1 - .927 = 0.073

7.3%

Answer: The bottom left picture.

Step-by-step explanation:

The graph shows the linear line crossing through 2 on the y-axis, therefore the y-intercept is 2. The graph also shows the line increasing by going up 1 and over 2, resulting in the slope of the line being 1/2.

Answer:

12 units

Step-by-step explanation:

Each side of the triangle is 1 unit. When putting 10 triangles together in figure 10, there will be 12 sides on the perimeter. Therefore, your answer is 12 units.

Answer:

49 = 7 x 7

Step-by-step explanation:

if we factor out 49 into its prime factors, we will get

49 = 7 x 7

(this is the answer)

Alternatively, we can recall from our multiplication tables that 49 = 7² = 7 x 7 (which gives the same answer)

Answer:

7² or 7x7

Explanation:

The prime is any number that can only be divided by itself or by one. One is not a cousin. The only prime pair is 2, all the others are unpaireds.

7/7 = 1. 7/1 = 7

7x7 = 49 or

7² = 49.

Other examples;

9 = 3²

25 = 5²

Answer:

2 7/16

Step-by-step explanation:

multiply both top and bottom of 2 3/4 to make it 12/16 then subtract from there.

Answer: 2 7/16

Step-by-step explanation: Your Welcome!

Answer:

[tex]\sqrt{40}[/tex] OR 6.324555

Remember to round accordingly if not intended to be answered in square root form!

Step-by-step explanation:

Use the distance formula

Answer:

1.4x10^-7

Step-by-step explanation:

For Problem 6

First we would divide the first numbers together so 7.84 / 5.6 = 1.4

We then would add the exponenites together so -3+-4=-7

Leading our awnser to be 1.4x10^-7

Answer:

g(x)= x2

Step-by-step explanation:

g(x)=x2 = f(x)=x2

The graph of g is a vertical stretch by a factor of 2 followed by a translation of 3 units down of the graph of [tex]\rm f(x) = (x-1)^2[/tex] then the function  [tex]\rm g(x) = 2(x+4)^2[/tex].

Given :

The following steps can be used to determine the rule for g:

Step 1 - Rewrite the given function f(x).

[tex]\rm f(x) = (x-1)^2[/tex]

Step 2 - Now, the graph is stretched vertically by a factor of 2.

[tex]= 2(x-1)^2[/tex]

Step 3 - Now, reflect the graph about the y-axis.

[tex]=2(-x-1)^2[/tex]

[tex]=2(x+1)^2[/tex]

Step 4 - Now, move to the left by 3 units.

[tex]=2(x+3+1)^2[/tex]

[tex]=2(x+4)^2[/tex]

Therefore, the function [tex]\rm g(x) = 2(x+4)^2[/tex].

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If price  of a sweater was reduced from $20 to $12 then the percentage was the price of the sweater reduced is 40%.

percentage, a relative value indicating hundredth parts of any quantity.

Given that the price of a sweater was reduced from $20 to $12.

Original price is 20.

new price is 12.

We have to find the how much  percentage was the price of the sweater reduced.

To do this we have to find the difference between prices over the original price and multiply with 100.

Percentage = 20-12/20×100

=8/20×100

=40%

Hence, if price  of a sweater was reduced from $20 to $12 then the percentage was the price of the sweater reduced is 40%.

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Answer:

vertex (-6,0) axis of symetry x= -6

Step-by-step explanation:

Answer:

A

Step-by-step explanation: I am not for sure but I would think that cuz if your dealing with lines and point you gonna end up doing slope and slope is Y=MX+B

Answer:

x≤−4 or x>7

Step-by-step explanation:

Answer:

yes

Step-by-step explanation:

if you simplify 5/20 it is 1/4

Answer:

yes

Step-by-step explanation:

Answer: x = - 5/2 five is on top and 2 is bottom

Answer:

The slope is Undefined

Step-by-step explanation:

Use the slope formula to find the slope  m .

Answer:

Slope = Undifine

Answer:

-3

Step-by-step explanation:

the function increases by 2, so when you go backwards, the values will decrease by two hence, -3

Answer:

a

Step-by-step explanation:

Answer:

13

Step-by-step explanation: 325/25=13

The hourly working rate of Rosita is equal to $325.

The mathematical expression combines numerical variables and operations denoted by addition, subtraction, multiplication, and division signs.

Mathematical symbols can be used to represent numbers (constants), variables, operations, functions, brackets, punctuation, and grouping. They can also denote the logical syntax's operation order and other properties.

Given that Rosita earned $325 for working 25 hours last week. The hourly rate will be calculated as,

To calculate the hourly rate divide the total earnings by the working hours.

Rate = 325 / 25

Rate = $13

The rate is $13 per hour.

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Answer: B. 15 degrees. Hope it helped you :) please mark as brainliest!

Answer:

Not Sure how to solve this...

Step-by-step explanation:

BUT

5 minutes is equal to [tex]\frac{1}{12}[/tex]

10 minutes is equal to [tex]\frac{1}{6}[/tex]

15 minutes is equal to [tex]\frac{1}{4}[/tex]

30 minutes is equal to [tex]\frac{1}{2}[/tex]

Answer:

1. 6+x

3.x-12

5. a-1

7.z÷8

9.10+x^3

Answer:

Slope is 1/2

Step-by-step explanation:

Y-intercept is -3

Answer:

Polynomial multiplication is a process for multiplying together two or more polynomials.

Answer:

58 girls

44 boys

Step-by-step explanation:    

102 divided by 2= 51                              have to divide, 14 divided by 2 = 7

51 - 7= 44

51 + 7= 58

58 + 44= 102

according to my calculations hope i helped ^_^

and also 58 -44= 14 is the difference between them

Answer:

1.) 6

2.)6

3,)4

Step-by-step explanation:

I think these are the gcf of the numbers

Answer:

60 3 948 3

Step-by-step explanation:

im just diffrent

The required ratio for the burger is 3;6:9 and the ratio for the hot dog is 5:10:15.

The ratio can be defined as the proportion of the fraction of one quantity towards others. e.g.- water in milk.

Here,
Let the missing ratio in Burger be x and the ratio in the Hot dogs be y,
Now,
According to the question,
3 / 5 = x / 10
x = 6
Now,
x / 10 = 9  / y
Substitute the value of x,
6 / 10 = 9 / y
y = 90 / 6
y = 15

Thus, the required ratio for the burger is 3;6:9 and the ratio for the hot dog is 5:10:15.

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Answer:

ik that angle one would be the same as 3 and 2 and 4 are also the same so if u find an answer for 2 or 4 they would be the same but is there like a total of the entire thing

Answer:

Angle 1 = 72 degrees

Angle 2 = 110 degrees

Angle 4 = 110 degrees

Step-by-step explanation:

Use angle rules.

Angle 2 + angle 3 = 180, because they supplementary angles.  Therefore, to find angle 2, you can do 180 - 72 = 110 degrees.

Angle 1 and angle 3 are vertical angles, meaning they are equal.  Thus, angle 1 = 72 degrees.

Angle 2 and 4 are vertical angles, meaning they are equal.  Thus, angle 4 = 110 degrees.

Answer:

9581

Step-by-step explanation:

8393 + 1188 = 9581