What is area under the normal curve between z=−2.0 and z=−1.0?

Answer:

The line will not pass through the first quadrant.

Step-by-step explanation:

Since the y-intercept is negative, and the slope is negative, the line will start in the second quadrant, pass through the third quadrant to intercept the y-axis, then pass through the fourth quadrant. It will never touch the first quadrant.

Answer:

comparing the means of three or more groups

Step-by-step explanation:

The integer that can be  inserted on the blank line in the list is: -2

The number line is given as:

-15, -3, ____, -1.5, 2, 3, 5

Now, a number line is defined as a line on which numbers are marked at intervals, used to illustrate simple numerical operations.

In this case, we see that the interval of the number line is from -15 to 5.

Thus, the range of values for the blank space will fall in between those two numbers.

Now, since we have positive 2 on the number line, then we must likely also have the negative one to balance it as the blank number.

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The interquartile range of the number of jumps of the 10 students during the competition is 38.

The interquartile range is the difference between the third quartile and the first quartile. The interquartile range is used to determine the variation of a data set.

Th first step is to determine the median of the first half of the dataset. The median of the first half is the first quartile.

First half of the data set: 30, 36, 38, 45, 57

Median = first quartile =  38

The next step is to determine the median of the second half of the dataset. The median of the second half is the third quartile.

Second half of the data set: 60, 77, 86, 88, 88

Median : third quartile =  86

Interquartile range = third quartile - first quartile

86 - 38 = 48

hence ,  interquartile range of the number of jumps of the 10 students during the competition is 38.

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A z-score of 2.14 indicates that Katie's score on the test is quite high and unusual, and places her in the top 2% of the scores in the population.

Katie scored a 93 on a test and her calculated z score was 2.14, that means that her score is 2.14 standard deviations above the mean of the test scores.

A z score represents the number of standard deviations a data point is from the mean of the data set.

A positive z score means that the data point is above the mean, while a negative z score means that the data point is below the mean.

The mean of the test scores was, 80 with a standard deviation of 5, then Katie's z score would be calculated as:

z = (x - μ) / σ

= (93 - 80) / 5

= 2.6

Z scores are useful for comparing data points from different data sets or for comparing data points within the same data set that are measured on different scales.

Katie's score is 2.6 standard deviations above the mean.

A z score of 2.14 would mean that Katie's score is slightly below this value, but still significantly above the mean.

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The proper response is therefore g(x) = f(x + 4) and g(x) thus equals f(x + 4) as point (0, -7) on the translated graph corresponds to the point (4, -7).

A function in mathematics is a relationship between two sets of inputs—the domain and the range—with the property that each input is associated to exactly one output. It is a means of expressing the interdependence of two quantities. Typically a letter, a function is represented by a symbol with an input value enclosed in parentheses and an output value denoted by a formula based on the input. For instance, the function f(x) = 2x + 3 multiplies the input value x by 2, adds 3 and returns the resulting output value.

given

Applying a horizontal translation of 4 units to the function f(x) will allow us to deduce the function g(x) from the function f(x).

This will ensure that the point (0, -7) on the translated graph corresponds to the point (4, -7) on the original f graph (x).

g(x) thus equals f(x + 4)

The proper response is therefore g(x) = f(x + 4) and g(x) thus equals f(x + 4) as point (0, -7) on the translated graph corresponds to the point (4, -7).

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Answer:

D

Step-by-step explanation:

The circle is filled in and the numbers are going lower so x is less than or equal to 7. I hope this helps and have a great day!

Answer: D

Closed circle mean it would be an “equal to.” Since the line is going to the left of 7 it means x is less than 7.

Answer:

75

Step-by-step explanation:

Let's say the unknown number is x

x/5 = 15

x = 15*5

x = 75

Answer:

x = 70

Step-by-step explanation:

Since 2 sides are equal then the triangle is isosceles with 2 congruent base angles , then

x = \(\frac{180-40}{2}\) = \(\frac{140}{2}\) = 70

Answer:

x=40°

Step-by-step explanation:

cuz the property of isosceles triangle that the angles opposite to equal sides are equal..

The Answer:the answer is D

Step-by-step explanation:

Answer:

x= 115-y

y=115-x
(Please brainlist me)

Step-by-step explanation:

65 + 2x + 2y + 25 + 65 = 360

2x+ 2y = 230

x+y = 115

x= 115-y

y=115-x

Answer:

25.981 seconds

Step-by-step explanation:

because X represents the magnitutde of falling height substitute 1200 into the original equation and you will find the above answer

Answer:

1 2/8 OR 1 1/4

Step-by-step explanation:

4/8 + 2/8 + 4/8 =

6/8 + 4/8 =

10/8 =

1 2/8 OR 1 1/4

Hope that helps!

Answer:

1 2 3 4 5

Step-by-step explanation:

Its possible for the code to just be 1 2 3 4 5

If the interest rate is 7%, the present value of her promise today is $24,382.87.

The formula for the present value of an annuity is:PMT × (1 - 1/(1+r)n)/r

Where:PMT = periodic payment (the amount you'll receive each year)

R = interest rate (as a decimal)

n = number of payments (in this case, 20)

The payments are not equal, but each payment is 7% larger than the previous one.

So, we need to calculate the payment for year 1, and then calculate the payments for years 2 through 20 based on that.

The payment for year 1 is $2,000.

The payment for year 2 is 1.07 × $2,000 = $2,140.

The payment for year 3 is 1.07 × $2,140 = $2,299.80.

And so on.

We can simplify this by finding the total growth factor after 20 years:1.07^19 = 4.869

We multiply the payment for year 1 ($2,000) by this growth factor to get the payment for year 20:$2,000 × 4.869 = $9,738.71

Now we can use the formula for the present value of an annuity:

PMT × (1 - 1/(1+r)n)/r$2,000 × (1 - 1/(1+0.07)^20)/0.07 = $24,382.87 (rounded to the nearest cent)

Therefore, the present value of her promise today is $24,382.87.

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Answer: 2/8+1/4+1/2

Step-by-step explanation: I think the correct answer is 2/8+1/4+1/2, because 3/4+2/3+1/2=1 11/12. 1/4+1/2=3/4. 5/3+1/6+1/3=2 1/6.

Answer:

⅞ pound

Step-by-step explanation:

You received 1/4 pound of candy from your grandmother.

You received 1/2 pound of candy from your sister.

You received 1/8 pound of candy from your best friend.

The total amount of candy you received is given as the sum of all the candy that he received from your grandmother sister and best friend.

The total amount of candy is therefore:

¼ + ½ + ⅛ = ⅞ pound

You received ⅞ pound of candy in total.

5 samples will not contain the value of the confidence interval of the unknown parameter. The rest will have the confidence interval.

x% confidence interval implies that the mean of x% is in the interval, also x% in the sample space will have the value of unknown parameter.

Here 95% of confidence interval is present and the sample space is 100. So,    100%- 95% = 5%. Thus only 5% of the sample space will not contain the confidence level of the unknown parameter.

5% of 100 = \(\frac{5}{100}\) ×  \(100\)  = 0.5 × 100 = 5

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bills refer to invoices or statements issued to request payment for goods or services provided. They typically outline the amount owed, due date, and payment instructions.

Based on the claim that at most 28% of internet users pay bills online, we need to determine if the recent survey supports or contradicts this claim.

The recent survey of 326 internet users indicated that 25% pay their bills online. To determine if this supports the claim, we need to compare the survey result to the claim.

Since the claim states "at most" 28% of internet users pay bills online, it means that 28% is the maximum percentage. Therefore, if the survey result of 25% falls within this range, it supports the claim.

To calculate this, we subtract the survey result (25%) from the maximum claim (28%):

28% - 25% = 3%

Since the difference is 3%, which is a positive value, the survey result of 25% falls within the maximum claim of 28%. Therefore, the recent survey supports the claim that at most 28% of internet users pay bills online.

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None of the given confidence intervals would lead us to reject the null hypothesis, h0: p = 0.30, in favor of the alternative hypothesis, ha: p≠0.30, at the 5% significance level.

To determine if we can reject the null hypothesis in favor of the alternative hypothesis, we need to check if the confidence interval includes the null hypothesis value. In this case, the null hypothesis is p = 0.30.

Looking at the given confidence intervals:

a. (0.19, 0.27)

b. (0.24, 0.30)

c. (0.27, 0.31)

d. (0.29, 0.31)

None of these intervals include the value 0.30. Since the confidence intervals do not contain the null hypothesis value, we cannot reject the null hypothesis at the 5% significance level. Therefore, the correct answer is option (e) None of these.

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Answer:

Step-by-step explanation:

the equation could model a scenario determining the number of players on each team in a league of five teams, if 2 players have to be taken out of the possible players to be referees and to keep score. there will be 11 on each team

Answer:

Twelve percent.

Step-by-step explanation:

6:50 x 2 = 12:100 or 12%. Hope this helps!

The optimal solution to the given integer programming problem is x = 1, y = 1, z = 3, with a maximum value of z = 3.

To solve the given integer programming problem using the cutting plane algorithm, we first solve the linear programming relaxation of the problem:

Maximize z = 4x + y
subject to
3x + 2y < 5
2x + 6y < 7
3x + Zy < 6
x, y >= 0

-The optimal solution to the linear programming relaxation is x = 1, \(y=\frac{1}{2}\), \(z = \frac{5}{2}\) . However, this solution is not integer.
-To obtain an integer solution, we need to add cutting planes to the problem. We start by adding the first constraint as a cutting plane:
3x + 2y < 5
3x + 2y - z < 5 - z

-The new constraint is violated by the current solution \((x = 1, y = \frac{1}{2} , z = \frac{5}{2} )\), since \(3(1) + 2(\frac{1}{2} ) - \frac{5}{2}  = \frac{3}{2} < 0\). So we add this constraint to the problem and solve again the linear programming relaxation:
Maximize z = 4x + y
subject to
3x + 2y < 5
2x + 6y < 7
3x + Zy < 6
3x + 2y - z < 5 - z
x, y, z >= 0
The optimal solution to this new linear programming relaxation is x = 1, y = 1, z = 3. This solution is integer and satisfies all the constraints of the original problem.

Therefore, the optimal solution to the given integer programming problem is x = 1, y = 1, z = 3, with a maximum value of z = 3.

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Answer:

The bridge is about 193.52 ft above the river and the length of the bridge above the arch is about 1250.51 ft

Step-by-step explanation:

  The arch is represented by the equation

y = -  .000495 x² + .619 x where x and y are in ft .

We can write this equation in the form

y = - a x² + bx

The vertex is on the line

x = b / 2a

= .619 / 2 x  .000495

= 625.25

Putting the value in the equation above

y =  -  .000495 ( 625.25)²

= 193.51 ft

This value will give us the depth of river .

To know the width of bridge we shall have to solve the quadratic equation

-  .000495 x² + .619 x = 0

x = [- .619 ± √ ( .619)² - 0] / 2 x .000495

= - .619 + 625.25 and

x = - .619 - 625.25

Difference = 625.25 x 2 = 1250 .51 ft.

So the width of the bridge will be 1250 .51 ft .

The problem with solving 1110 - 1110 using 2's complement in 7-bit data representation is that it results in an overflow, and to overcome this, either increase the number of bits or use a larger data type for representation.

We are subtracting 1110 from 1110 using 2's complement and using 7-bit data representation. Let's go through the steps:

Step 1: Convert 1110 to its 2's complement representation in 7 bits:

  - In 7 bits, the leftmost bit is the sign bit.

  - Since the leftmost bit of 1110 is 1 (indicating a negative number), we can simply represent it as it is: 1110.

Step 2: Perform the subtraction using 2's complement:

  1  1  1  0

- 1  1  1  0

------------

  0 0 0 0

The result of the subtraction is 0000. However, this result is problematic because it is not within the range that can be represented with 7 bits using 2's complement.

To overcome this problem and prevent overflow, we can take the following steps:

1. Increase the number of bits: Increase the number of bits used for representing the numbers. Using more bits allows for a larger range of representable numbers and reduces the chance of overflow. If possible, use more bits for data representation.

2. Use a larger data type: If using a fixed number of bits is a requirement, consider using a larger data type, such as a larger integer type, that can accommodate the expected range of values without overflow.

3. Check for overflow conditions: Before performing arithmetic operations, check for potential overflow conditions. For example, when subtracting two negative numbers or adding two positive numbers, the result should have a different sign. If the signs of the operands are the same and the result has the opposite sign, it indicates overflow.

4. Handle overflow cases: If overflow occurs, take appropriate actions based on the specific requirements of your application. This could involve truncating or discarding the most significant bits of the result or applying additional logic to handle the overflow condition appropriately.

By considering these suggestions and adjusting the number of bits or data type used for data representation, you can overcome the problem of overflow when performing arithmetic operations using 2's complement.

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The number of pages that Kamala needs to reach each day is p ≥ 30.

Here are inequality signs and what they mean:

The inequality sign that would be used is ≥. This is because the pages Kamala needs to read each day  can be equal to 235 or greater than 235

25 + 7p ≥ 235

Combine similar terms: 7p ≥ 235 - 25

Add similar terms:  7p ≥ 210

Divide both sides of the equation by 7: p ≥ 210 / 7

p ≥ 30

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Answer:

first one is 24

second one is probably 12

Step-by-step explanation:

Answer:

see explanation

Step-by-step explanation:

On each median, the distance from the vertex to the centroid is twice as long as the centroid to the midpoint , that is

BO = 2 × OY = 2 × 12 = 24

-------------------------------------------------------------------

the altitude DB is at right angles to AC , then ∠ CBD = 90°

sum the 3 angles in Δ BCD and equate to 180

10x - 14 + 4x - 8 + 90 = 180

14x + 68 = 180 ( subtract 68 from both sides )

14x = 112 ( divide both sides by 14 )

x = 8

Answer:

$46.20

Step-by-step explanation:

Do 8.80 times 7 to get 61.6 then divide by four to get 15.40 then subtract it by 61.6 to get 46.20