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Of 200 students, 150 like Math or English. 50 like both subjects and 90 of the students like math. How many students like English?

Answer:

(2.19 x 4) + (0.79 x 3)

Step-by-step explanation:

ok so u hv to take 2.19 and multiply it by four. Then take 0.79 and multiply it by three.

Answer:

9.55

Step-by-step explanation:

Answer:

x = 7

Step-by-step explanation:

28 - 21 = 7

Answer:

3.2×10²×10⁵=32000000

And the scientific notation is 3.2000000x10⁷

Answer: D

Step-by-step explanation: I got it right.

Answer:

  A

Step-by-step explanation:

A Pythagorean triple is a set of three positive integers that satisfy the Pythagorean theorem.

  24² +32² = 40²

  576 +1024 = 1600 . . . . true, the theorem is satisfied

This is a Pythagorean triple because it contains three positive integers that satisfy the Pythagorean theorem.

_____

You may recognize this as the (3, 4, 5) triple, multiplied by 8.

Answer:

1. -15

2. 35

3. -60

4. 5

Step-by-step explanation:

n = 16:

-5/6(2+16)

-5/6(18)

-15

n= -44:

-5/6(2-44)

-5/6(-42)

35

n = 70:

-5/6(2+70)

-5/6(72)

-60

n = -8:

-5/6(2-8)

-5/6(-6)

5

Answer:

Answer is 7/2 cm

Step-by-step explanation:

1. Set a ratio

\(7=\frac{3V}{l*w}:h=\frac{3V}{l*2w}\)

2. Move 2w from denominator to LHS (Left hand side)\(\frac{7}{2}w=\frac{3V}{l}\)

\(\frac{7}{2w}=\frac{3V}{l}\)

3. The four options are 7/4, 7/2, 14 or 28 cm

Answer:

Choice B

7/2 cm

Step-by-step explanation:

(a) Recall the definition of the step function,

\(\theta(t) = \begin{cases} 1 & \text{if } t \ge 0 \\ 0 & \text{if } t < 0 \end{cases}\)

Then we have

• \(\theta(t-2) = 1\) if \(t-2\ge0\), or \(t\ge2\)

• \(\theta(t-3) = 1\) if \(t-3\ge0\), or \(t\ge3\)

and we can combine these to get

\(\theta(t-2) - \theta(t-3) = \begin{cases} 1 & \text{if }2\le t < 3 \\ 0 & \text{if }t<2 \text{ or } t\ge3 \end{cases}\)

then scale up by 4 to get the value we want over [2, 3].

\(f(t) = \boxed{4\bigg(\theta(t-2) - \theta(t-3)\bigg)}\)

At least that's what I get using the aforementioned definition of "step function". I don't see a way to have both \(f(2)=4\) and \(f(3)=4\) with this definition...

(b) No function was given...

Answer:

294cm²

Step-by-step explanation:

The formula for this problem is SA=1/2lp+B

SA = 1/2(10) 49 + 7²

= 245 + 49

= 294cm

Step-by-step explanation:

4)

the surface area is

top and bottom : 2× pentagon (5 sides)

sides : 5× rectangle 14×8 ft²

let's start with the easiest : the rectangles.

5 × 14×8 = 560 ft²

the area of a pentagon is similar to any regular polygon :

n × triangle of side×height (to middle of pentagon) / 2

n = number of sides (5 in our case).

the middle or center of the pentagon is the top vertex of each triangle.

so,

5 × 14×9.63 / 2 = 5 × 7 × 9.63 = 337.05 ft²

and we have 2 of them (top and bottom), so

2×337.05 = 674.1 ft³

in total the surface area is

560 + 674.1 = 1,234.1 ft²

5)

6 sides :

top and bottom : 7×14 rectangle

left and right : 7×8 rectangle

front and back : 8×14 rectangle

so, we have

2× 7×14 = 196 mm²

2× 7×8 = 112 mm²

2× 8×14 = 224 mm²

in total that is : 532 mm²

To  find the center of dilation,We'll fix our compass to a distance that is closer to the overall distance but still greater than halfway between vertex L and point C. Start with the compass's point on vertex L while maintaining the same distance, and then draw a curve that intersects the line connecting L and C.

Centre of dilation  of an image in mathematics refers to a change that results in an image with the same shape but a different size, either larger or smaller. A dilation can only be built with two bits of information.

An operation that moves, flips, or otherwise alters a figure to produce a new figure is called a transformation. Rigid transformations maintain size, whereas non-rigid transformations do not. A dilatation enlarges or reduces a figure while maintaining its original shape. To put it another way, the dilatation resembles the original. Every dilatation has a scale factor and a centre. The scale factor indicates how much the figure stretches or contracts, and the centre serves as the point of reference for the dilation (much like the vanishing point in a perspective drawing). A scale factor is usually identified by a label and is never zero. Additionally, the dilatation would be if the original figure were labelled, for example.

The point from which the image is dilated is known as the centre of dilatation (or point of dilation).

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Therefore, Bruce considered his full speed to be 20 mph if Maria's speed was 16 mph.

If Bruce and Maria both headed north at full speed and after 4 hours Bruce was 16 miles ahead of Maria, we can calculate Bruce's speed.

Bruce's speed can be represented by the variable "B," and Maria's speed is given as 16 mph. Since distance equals speed multiplied by time, we can set up the following equation:

Distance traveled by Bruce = Distance traveled by Maria + 16 miles

B * 4 = 16 * 4 + 16

4B = 64 + 16

4B = 80

Dividing both sides of the equation by 4:

B = 20

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Answer:

5/3

Step-by-step explanation:

rise over run

(y2-y1)/(x2-x1)

(-2-3)=-5

(-2-1)=-3

Answer:

36.87

Step-by-step explanation:

Using tan inverse of 9 over 12

Answer:

x ≈ 36.9°

Step-by-step explanation:

Using the tangent ratio in the right triangle

tan x = \(\frac{opposite}{adjacent}\) = \(\frac{9}{12}\) , then

x = \(tan^{-1}\) (\(\frac{9}{12}\) ) ≈ 36.9° ( to the nearest tenth )

Answer: B

Step-by-step explanation: An isosceles right triangle is an isosceles triangle and a right triangle. This means that it has two congruent sides and one right angle. Therefore, the two congruent sides must be the legs.

In this situation, a paired t-test should be used.

Blood pressure is the force of your blood against the artery walls. Blood is transported from your heart to different regions of your body through arteries. Throughout the day, your blood pressure typically increases and decreases.

A sphygmomanometer, commonly referred to as a blood pressure metre, blood pressure gauge, or blood pressure monitor, is a device used to measure blood pressure. The words "sphygmomanometer" and "manometer" are derived from the Greek words "sphygmos" and "manometer," respectively, which mean the instrument used to measure pressure or tension. In the year 1881, Samuel Siegfried Karl Ritter von Basch created this device. However, Scipione Riva-Rocci unveiled a more straightforward sphygmomanometer in 1896.

according to question,

When there are two measurements from the same sample, as in this scenario where each patient is measured by both the machine and a human observer, a paired t-test is performed. To find out if there is a statistically significant difference between the two measurements, utilise the paired t-test.

The mean difference between the two measurements is contrasted to zero using the paired t-test. As opposed to the alternative hypothesis, which states that there is a significant difference between the two measures, the null hypothesis states that there is no difference between the two measurements.

To ascertain whether there is a significant difference between the blood pressure readings received from the automated equipment and the typical blood pressure records obtained in this situation, the paired t-test should be employed.

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The demand function for good X is Qx = m - 3Px + 2Py, where Qx is the quantity demanded of X, m is income, Px is the price of X, and Py is the price of a related good Y. The equation shows that the demand for X is inversely related to its price and directly related to the price of Y. Income, price of X, and price of Y collectively affect the overall demand for X.


The demand function for good X is given by Qx = m - 3Px + 2Py, where Qx represents the quantity demanded of good X, m is the income, Px is the price of good X, and Py is the price of a related good Y. In this equation, the income and prices are assumed to be positive.

To determine the demand for good X, we can analyze the equation. The coefficient -3 in front of Px indicates that the demand for good X is inversely related to its price. As the price of X increases, the quantity demanded of X decreases, assuming other factors remain constant. On the other hand, the coefficient 2 in front of Py indicates that the demand for good X is directly related to the price of the related good Y. If the price of Y increases, the quantity demanded of X also increases, assuming other factors remain constant.

Furthermore, the term (m - 3Px + 2Py) represents the overall effect of income, price of X, and price of Y on the quantity demanded of X. If income (m) increases, the quantity demanded of X increases. If the price of X (Px) increases, the quantity demanded of X decreases. If the price of Y (Py) increases, the quantity demanded of X increases.

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If Mexico, one of our largest trading partners, goes into a recession, it is likely to decrease its demand for our exports. This would shift the aggregate demand (AD) curve leftward, leading to a decrease in equilibrium GDP and price level in the short run.

In the AD/AS model, a decrease in aggregate demand would cause a leftward shift of the AD curve. As a result, the intersection point of the AD and the short-run aggregate supply (SRAS) curves would move to the left, causing a decrease in equilibrium GDP and price level.

In the long run, however, the economy is likely to adjust to the new equilibrium. The decrease in aggregate demand would cause a decrease in prices, which would shift the SRAS curve rightward. Eventually, the new intersection point of the AD and the SRAS curves would be reached, resulting in a new equilibrium GDP and price level.

Overall, a recession in Mexico would likely have a negative impact on the US economy, leading to a decrease in GDP and price level in the short run. However, the economy would eventually adjust to the new equilibrium in the long run.

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To find the probability that a customer has to wait more than 4 minutes, we need to use the normal distribution and standard deviation.

If the manager knows the standard deviation, we can use it to calculate the z-score and find the probability using a standard normal distribution table. However, since the standard deviation is not given in this question, we will assume that the distribution of waiting times is approximately normal and use the empirical rule.
The empirical rule states that for a normal distribution, approximately 68% of the values lie within one standard deviation of the mean, approximately 95% lie within two standard deviations, and approximately 99.7% lie within three standard deviations.
Since the average time that customers wait is 3 minutes, and we want to find the probability that a customer waits more than 4 minutes, we need to calculate how many standard deviations away from the mean 4 minutes is.
z = (x - μ) / σ
where x = 4, μ = 3, and σ is the standard deviation. Since we don't know the value of σ, we can't calculate the z-score directly. However, we can make a reasonable assumption that the standard deviation is around 1 minute. This is based on the empirical rule which states that approximately 68% of the values lie within one standard deviation of the mean.
So, σ = 1 minute, and
z = (4 - 3) / 1 = 1
Now we can use a standard normal distribution table to find the probability of a z-score of 1 or greater. From the table, we can see that the probability of a z-score of 1 or greater is approximately 0.1587.
Therefore, the probability that a customer has to wait more than 4 minutes is approximately 0.1587 or 15.87%.

To find the probability that a customer at the fast-food restaurant has to wait more than 4 minutes, we'll use the exponential distribution.
1. First, let's find the rate parameter, which is the reciprocal of the average waiting time: λ = 1 / average waiting time. In this case, λ = 1 / 3 ≈ 0.3333.
2. Now, we'll use the cumulative distribution function (CDF) of the exponential distribution to find the probability of waiting less than or equal to 4 minutes: P(X ≤ 4) = 1 - e^(-λx) = 1 - e^(-0.3333 × 4) ≈ 0.7364.
3. To find the probability of waiting more than 4 minutes, subtract the CDF value from 1: P(X > 4) = 1 - P(X ≤ 4) = 1 - 0.7364 ≈ 0.2636.
So, the probability that a customer at the fast-food restaurant has to wait more than 4 minutes is approximately 0.2636 or 26.36%.

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Answer:

THE ACTUAL ANSWER IS p=4.47 and p is for one bag of potting soil

Step-by-step explanation:

THE ACTUAL ANSWER IS p=4.47 and p is for one bag of potting soil

Answer:

It will be sqrt338 / sqrt72  = 2.16666...

13/6 = 2.166666. in other words

so the answer would be B

Hope this helped

Step-by-step explanation:

Answer:

13:6

Step-by-step explanation:

I’m correct

Answer:

x=2

y=5

Step-by-step explanation:

fill in x

5y+(y-3)=27

6y-3=27

  +3.  +3

6y=30

/6.  /6

y=5

now fill in y to find x

x=5-3

x=2

Hopes this helps please mark brainliest

Answer:

The x-intercept is where a line crosses the x-axis, and the y-intercept is the point where the line crosses the y-axis.

Answer: sorry i needed points :<

Step-by-step explanation:

Step-by-step explanation:

Based on the given dataset and information that the last digit of the CUNY ID is 5, the following steps are taken to analyze the data. The OLS estimates of coefficients B and β are calculated, and the predicted values of Y for each observation are determined. Residuals are calculated, along with the explained sum of squares (ESS), total sum of squares (TSS), and residual sum of squares (RSS). The coefficient of determination (R²) is calculated to assess the goodness of fit. Finally, the predicted value of Y is determined when X is equal to the last digit of the CUNY ID + 1.

a) To regress Y on X, we use ordinary least squares (OLS) estimation. The OLS estimates of coefficients B and β represent the intercept and slope, respectively, of the regression line. The coefficients are determined by minimizing the sum of squared residuals.

b) The predicted value of Y for each observation is obtained by plugging the corresponding X values into the regression equation. In this case, since the last digit of the CUNY ID is 5, the predicted value of Y would be calculated for X = 5.

c) Residuals are the differences between the observed Y values and the predicted Y values obtained from the regression equation. To calculate the residual for each observation, we subtract the predicted Y value from the corresponding observed Y value.

d) The explained sum of squares (ESS) measures the variability in Y explained by the regression model, which is calculated as the sum of squared differences between the predicted Y values and the mean of Y. The total sum of squares (TSS) represents the total variability in Y, calculated as the sum of squared differences between the observed Y values and the mean of Y. The residual sum of squares (RSS) captures the unexplained variability in Y, calculated as the sum of squared residuals.

e) The coefficient of determination, denoted as R², is a measure of the proportion of variability in Y that can be explained by the regression model. It is calculated as the ratio of the explained sum of squares (ESS) to the total sum of squares (TSS).

f) To predict the value of Y when X equals the last digit of the CUNY ID + 1, we can substitute this value into the regression equation and calculate the corresponding predicted Y value.

g) The coefficient B represents the intercept of the regression line, indicating the expected value of Y when X is equal to zero. The coefficient β represents the slope of the regression line, indicating the change in Y associated with a one-unit increase in X. The interpretation of β depends on the context of the data and the units in which X and Y are measured.

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Answer:

Step-by-step explanation:

,,,

The solution to the inequality 4 ≤ -3x - 1 ≤ 9 is -5/3 ≥ x ≥ -10/3.

Given the inequality in the question;

4 ≤ -3x - 1 ≤ 9

To solve, first move all terms not containing x from center section of the inequality.

4 ≤ -3x - 1 ≤ 9

Add 1 to each sides of the inequality

4 + 1 ≤ -3x - 1 + 1 ≤ 9 + 1

4 + 1 ≤ -3x ≤ 9 + 1

Add 4 and 1

5 ≤ -3x ≤ 9 + 1

Add 9 and 1

5 ≤ -3x ≤ 10

Now, divide each term in the inequality by -3

5 / -3 ≥ -3x / -3 ≥ 10 / -3

Simplify

5 / -3 ≥ x ≥ 10 / -3

-5/3 ≥ x ≥ -10/3

Therefore, the solution is -5/3 ≥ x ≥ -10/3.

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The partial derivatives of the function F(r, s, t) = r(9s^6 - 9t^6) can be computed as follows:

The partial derivatives of F(r, s, t) are computed by treating the other variables as constants and differentiating the function with respect to the variable of interest. The derivative with respect to r yields a coefficient of (9s^6 - 9t^6), while the derivatives with respect to s and t involve the terms 54rs^5 and -54rt^5, respectively.

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No, the LDA classifier and the Bayes classifier would not necessarily give similar boundaries when trained on a large amount of training data from an arbitrary distribution.

The LDA (Linear Discriminant Analysis) classifier assumes that the input features are normally distributed and that the class covariances are equal. It finds linear boundaries that maximize the separation between classes based on these assumptions. On the other hand, the Bayes classifier makes decisions based on the class conditional probabilities and prior probabilities of the classes. It can handle arbitrary distributions and does not make assumptions about the class covariances. Therefore, even with a large amount of training data, if the distribution of the data does not conform to the assumptions of LDA (e.g., non-normal distributions or unequal class covariances), the LDA classifier may not give similar boundaries to the Bayes classifier.

The LDA and Bayes classifiers may not give similar boundaries when trained on data from an arbitrary distribution, as the LDA classifier relies on specific assumptions about the data distribution that may not hold true in practice.

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Answer:

The answer is D