180 minus what = 45

i really need this answer thank you

Answer:

13 degrees

Step-by-step explanation:

working out is attached

hope it helps:)

The correctanswer is-the percentage of the pieces that will meet the length specs is 98.78%.

The given data may be a random variable that takes after the normal distribution with mean μ=64 and standard deviation σ=0.1

The required value is to discover the rate of the pieces that will meet the length specs which is between 63.76 and 64.24 inches.

To find the required percentage, standardize the given limits as follows: Lower Limit: (63.76 - μ) / σ= (63.76 - 64) / 0.1 = -2.4

Upper Limit: (64.24 - μ) / σ= (64.24 - 64) / 0.1 = 2.4

Using the Standard Normal Distribution Table, the probability that the value will fall between -2.4 and 2.4 is found to be 0.9878.

The required percentage is then found by multiplying the probability by 100, which is: Percentage = 0.9878 x 100% = 98.78%

Therefore, the percentage of the pieces that will meet the length specs is 98.78%.

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Answer:

4

Step-by-step explanation:

Answer:

The rise over run is -1/2

Step-by-step explanation:

The value of the expression is 4.

The code :

int a[4] = {1, 2, 3, 4};

int *p = a;

what is *(p + 3)?

The variable a is an array of integers, and the variable p is a pointer to the first element of the array.

The expression *(p + 3) is the value of the element of the array that is 3 elements after the element that p points to.

Since p points to the first element of the array, the expression *(p + 3) is the value of the fourth element of the array, which is 4.

Therefore, the value of the expression is 4.

Here is a breakdown of the code:

int a[4] = {1, 2, 3, 4}: This line declares an array of integers called a and initializes it with the values 1, 2, 3, and 4.

int *p = a; This line declares a pointer to an integer called p and initializes it with the address of the first element of the array a.

what is *(p + 3)?: This line asks what the value of the expression *(p + 3) is.

The expression *(p + 3) is the value of the element of the array that is 3 elements after the element that p points to.

Since p points to the first element of the array, the expression *(p + 3) is the value of the fourth element of the array, which is 4.

Therefore, the value of the expression is 4.

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Correct Question :

Int a[4]={1,2,3,4}, int *p=a. What is the value of *(p+3)?

What the polynomial said when it sat down for dinner is "I've got a lot of roots" (sounds like "I've got a lot of fruits") as a polynomial equation can have multiple roots.

Polynomial equations are equations in which the variables and coefficients are combined using the mathematical operations of addition, subtraction, and multiplication, but not division by a variable.

The degree of a polynomial equation is determined by the highest power of the variable in the equation.

Polynomial equations can have one or more variables and are often used in mathematical modeling to represent real-world phenomena. The solutions to polynomial equations can be found by factoring, using the quadratic formula, or using numerical methods.

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The test used to determine whether or not first-order autocorrelation is present is the Durbin-Watson test.

1. Fit a regression model to the data.

2. Obtain the residuals, which represent the differences between the observed values and the predicted values from the regression model.

3. Calculate the Durbin-Watson statistic, which is a ratio of the sum of squared differences between adjacent residuals to the sum of squared residuals.

4. Compare the calculated Durbin-Watson statistic to critical values from a Durbin-Watson table or use statistical software to determine if there is significant autocorrelation.

5. The Durbin-Watson statistic ranges from 0 to 4, where a value around 2 suggests no autocorrelation, a value below 2 indicates positive autocorrelation, and a value above 2 indicates negative autocorrelation.

6. By analyzing the Durbin-Watson statistic, researchers can make conclusions about the presence or absence of first-order autocorrelation in the regression model.

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Considering the definition of an equation and the way to solve it, the correct answer is the third option: Cadence baked 21 cupcakes on Monday.

An equation is the equality existing between two algebraic expressions connected through the equals sign in which one or more unknown values, called unknowns.

The members of an equation are each of the expressions that appear on both sides of the equal sign.

The solution of a equation means determining the value that satisfies it. To solve an equation, keep in mind:

Being "x" the number of cupcakes baked by Cadence on Monday, and knowing that:

the equation in this case is:

3 + 2x= 45

Solving:

2x= 45 -3

2x= 42

x= 42 ÷ 2

x= 21

Finally, the correct answer is the third option: Cadence baked 21 cupcakes on Monday.

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The convex sets among the given options are a. C={(x,y,z)∈R^3∣x^2+y^2+z^2≥100} and c. C={(x,y)∈R^2∣x≥1}. These sets satisfy the definition of convexity, while the other options do not.

A set C in Euclidean space is called convex if for any two points x and y in C, the line segment connecting x and y lies entirely within C.

a. C={(x,y,z)∈R^3∣x^2+y^2+z^2≥100} is a convex set. For any two points (x₁, y₁, z₁) and (x₂, y₂, z₂) in C, the line segment connecting them is a subset of the sphere defined by x² + y² + z² = 100 or its exterior. Therefore, the set C is convex.

b. C={(x,y,z)∈R^3∣(x−2)^2+(y−1)^2+(z−2)^2≤400} is not a convex set. It represents a closed ball centered at (2, 1, 2) with a radius of 20. However, the line segment connecting points on the surface of the ball may extend outside the ball, violating the definition of convexity.

c. C={(x,y)∈R^2∣x≥1} is a convex set. For any two points (x₁, y₁) and (x₂, y₂) in C, the line segment connecting them lies entirely to the right of the vertical line x = 1. Hence, the set C is convex.

d. C={(x,y)∈R^2∣x−y=10} is not a convex set. It represents a line in the xy-plane. However, the line segment connecting two points on the line may extend outside the line, violating convexity. Therefore, the options a and c are examples of convex sets, while the others do not satisfy the definition of convexity.

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If we take a sample of 50 students from your school and measure their height , then (c) The mean of the sample data. will be a Random Variable .

A Random Variable is a defined as a variable whose value depends on the outcome of a random event.

Option (c) : the random event is the selection of 50 students from the school to measure their height. The mean height of this sample of 50 students is a random variable because it can vary depending on the specific students who are selected.

Option (a) : The true mean height of all students from your school is a population parameter and is a fixed value, so it cannot be called as a random variable.

Option (b) : The mean of the sampling distribution of mean heights for samples of size 50 is a population parameter as well, and it represents the average of all possible sample means of size 50 taken from the population. So,  it is a fixed value and not a random variable.

Therefore , The mean of the sample data will be a random variable .

The given question is incomplete , the complete question is

Suppose you take a sample of 50 students from your school and measure their height.  Which one of the following is a random variable?

(a) The true mean height of all students from your school.

(b) The mean of the sampling distribution of mean heights for samples of size 50.

(c) The mean of the sample data.

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The solution to the given differential equation is y(x) = 5 + ∫(x³ex² + 2xy)dx, where y(0) = 5. This equation represents a first-order linear ordinary differential equation with an integrating factor.

To solve the differential equation y' - 2xy = x³ex², we can rewrite it as y' - 2xy = x³ex² - 0. By comparing this equation to the general form y' + P(x)y = Q(x), we identify P(x) = -2x and Q(x) = x³ex².

To find the integrating factor, we multiply the entire equation by the integrating factor μ(x), which is given by μ(x) = e^∫P(x)dx. In this case, μ(x) = e^∫(-2x)dx = e^(-x²).

Multiplying the given equation by μ(x), we have e^(-x²)y' - 2xey^2 = x³ex²e^(-x²). We can simplify this equation to d(e^(-x²)y)/dx = x³.

Now, we integrate both sides with respect to x: ∫d(e^(-x²)y)/dx dx = ∫x³ dx. This gives us e^(-x²)y = x⁴/4 + C, where C is the constant of integration.

Solving for y, we have y(x) = (x⁴/4 + C)e^(x²). Applying the initial condition y(0) = 5, we find that C = 5. Therefore, the solution to the differential equation is y(x) = 5 + (x⁴/4 + 5)e^(x²).

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The range of the function g(x) is given as follows:

[0, ∞).

From the graph of the function given in this problem, y assumes all real non-negative values, hence the interval notation representing the range of the function is given as follows:

[0, ∞).

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The probability of selecting two purple shirts then a blue shirt is  28/323

Given, there are 12 blue shirts and 7 purple shirts in a drawer.

three shirts are randomly selected without replacement.

the probability of selecting two purple shirts then a blue shirt is,

(C(7 , 2) × C(12 , 1))/C(19 , 3) = ((7×6)/2 × 12)/(19×18×17)/6

= (7×6×6)/(19×3×17)

= 84/969

= 28/323

Hence, the probability of selecting two purple shirts then a blue shirt is  28/323

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Answer:

69

Step-by-step explanation:

A triangle has a 180 degree angle so you do 180-111=69

Answer: x=24

Step-by-step explanation:

lets say 94 is ∠ a

41 is ∠ b

___ ∠  c

111∠ d

x ∠ e

so with that you will figure out that ∠  c is to find X

108-94-41= 45

so ∠ c is 45

now you can ∠a ∠ b∠ c

with that yo take

108-111-45=24

So X=24

Answer:

C) SSA Similarity Theorem

Step-by-step explanation:

The SAS Similarity Theorem asserts that if two sides of one triangle are proportionate to two sides of another triangle, and both triangles' included angles are congruent, the two triangles are similar.

The edge length of the smallest possible square with an area of 5778 cm² is approximately 76.03 cm.

To calculate the edge length of the smallest possible square with an area of 5778 cm², we can use the formula for the area of a square, which is length multiplied by width. Since a square has all sides equal, we can use the formula A = s², where A represents the area and s represents the side length of the square.
In this case, we have the area of the square given as 5778 cm². To find the side length, we need to take the square root of the area.
√5778 ≈ 76.03 cm
Therefore, the edge length of the smallest possible square with an area of 5778 cm² is approximately 76.03 cm.

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Standard Deviation: Is a measure of how spread out values are in a data set compared to the mean. It is calculated by finding the square root of the variance, which is the average of the squared differences from the mean.

Mean: The average value of a set of numbers. It is calculated by summing up all the numbers in the set and dividing the result by the total number of numbers in the set.

Distribution Curve: is a bell shaped curve that displays the mean with a line down the center of the curve and standards deviations within standard deviations.

See attached file for model of curve, from: https://commons.wikimedia.org/wiki/File:Standard_deviation_diagram.svg

Given the mean and standard deviation we can use a general rule to determine the population between the given lengths.

Generally in a normal distribution:

176 cm is 1 standard deviation less than the mean and 184 cm is 1 standard deviation greater than the mean. Using the general rules above, 68% of data falls between -1σ and +1σ. Therefore, the answer to this question would be B. 68%

Answer:

1. 9

2. 122cm squared

3. 189m

4. 30

5. b

Step-by-step explanation:

1. 27,36,45,54,63,72,81,90,99

2. 12x6=72 10x5=50 50+72=122

3. 21x9=189

4. 5x12=60 60/2=30

5  b because 150 divided by 4 doesn't give you a whole number.

Answer:

Hi,

You haven't included the data chart or what you need to solve.

Then only I will be able to help you!

Step-by-step explanation:

Answer:

A. 150

Step-by-step explanation:

Calculate the probability of landing on an odd number: 1/2.

Multiply the probability by the number of trials: (1/2) * 300.

Simplify the expression: 150.

Therefore, a reasonable prediction is that the event of landing on an odd number will occur 150 times out of the 300 rolls of the fair 6-sided die.

Answer:

No

Step-by-step explanation:

\(5^{2} = 25\\9^{2} = 81\\11^{2} = 121\\25 + 81 = 106\)

therefore it doesn't coenide with pythagorian theorem

Answer:

m= 2, -6

Step-by-step explanation:

(m+2)²=16

(m+2)=  ∓ 4

For +4,

m+2=4

m=2

For -4,

m+2=-4

m=-6

Answer:

m = - 6, m = 2

Step-by-step explanation:

To solve by FACTORING we require to expand the factor and rearrange

(m + 2)² = 16 ← expand left side using FOIL

m² + 4m + 4 = 16 ( subtract 16 from both sides )

m² + 4m - 12 = 0 ← in standard form

(m + 6)(m - 2) = 0 ← in factored form

Equate each factor to zero and solve for m

m + 6 = 0 ⇒ m = - 6

m - 2 = 0 ⇒ m = 2

The approximate measure of angle z in triangle XYZ is 78.5°.

To determine the measure of angle z, we can use the properties of triangles. One way to find this angle is by using the slope formula to calculate the slopes of the lines formed by the given points. Then, we can use the inverse tangent function to find the angle.

First, let's calculate the slopes of the lines XY and YZ using the formula:

m = (y2 - y1) / (x2 - x1)

For line XY:

mXY = (1 - (-1)) / (-2 - (-1)) = 2 / (-1) = -2

For line YZ:

mYZ = (2 - 1) / (1 - (-2)) = 1 / 3

Next, we can calculate the angle using the inverse tangent function:

angle z = arctan(mYZ - mXY) = arctan(1/3 - (-2)) = arctan(1/3 + 2) = arctan(7/3)

Using a calculator, we find that arctan(7/3) is approximately 78.5°.

Therefore, the approximate measure of angle z in triangle XYZ is 78.5°.

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Answer:

X box:  30 units

PlayStation: 8 units

Step-by-step explanation:

x + p = 38

x = 5p - 10

x = number of X-Box

p = number of Play Station

then:

(5p-10) + p = 38

5p + p = 38 + 10

6p = 48

p = 48/6

p = 8

x = 5p - 10

x = 5*8  - 10

x = 40 - 10

x = 30

Check:

30 + 8 = 38

Answer:

Look in png I attached

Step-by-step explanation:

1. Simplify the quadratic equation into its standard form

2. Solve the equation using the quadratic formula

3. Determine the quadratic equation’s coefficients a, b and c

4. Plug these coefficients into the quadratic formula

5. Simplify square root of 14925

6. Solve the equation for x

- Centar :)

Answer:

option 3

Step-by-step explanation:

Δ AEB and Δ ADC are similar, so ratios of corresponding sides are equal, that is

\(\frac{AB}{AC}\) = \(\frac{AE}{AD}\) , substitute values

\(\frac{9.2}{AC}\) = \(\frac{9}{14}\) ( cross- multiply )

9AC = 128.8 ( divide both sides by 9 )

AC ≈ 14.3 (to the nearest tenth )

Answer:

ikaw na gumawa kaya mona yan

Answer:

4-6= 2 and 8-12= 4

Step-by-step explanation:

hope this helps