happy veterans day everybody!!!

Answer:

4.25

Step-by-step explanation:

she has a total of 20 dollars and she wats to buy ice cream each at 3.15 for a total of 5 people including her self.

so 3.15(5) is 15.75

then subtract 15.75 from 20

20 - 15.75 = 4.25

Answer:

To find the perimeter of triangle ABC, we need to find the lengths of all three sides of the triangle. To do this, we can use the distance formula, which states that the distance between two points (x1, y1) and (x2, y2) is given by the square root of ((x2 - x1)^2 + (y2 - y1)^2).

Applying this formula, we can find the lengths of the sides of the triangle as follows:

AB = sqrt((7 - (-1))^2 + (-6 - (-6))^2) = sqrt(8^2 + 0^2) = sqrt(64) = 8

BC = sqrt((3 - 7)^2 + (-3 - (-6))^2) = sqrt(-4^2 + 3^2) = sqrt(16 + 9) = sqrt(25) = 5

AC = sqrt((-1 - 3)^2 + (-6 - (-3))^2) = sqrt(-4^2 + 3^2) = sqrt(16 + 9) = sqrt(25) = 5

Thus, the perimeter of triangle ABC is 8 + 5 + 5 = 18 units.

Answer:

7

Step-by-step explanation:

i'm pretty sure the eyes are the same so if the right eye is 7 then the left one is 7. Hope this helps.

In the given research design, there are three independent variables. The notation "2x2x4" represents the number of levels or conditions for each independent variable.

The first independent variable has two levels (2x), the second independent variable has two levels (2x), and the third independent variable has four levels (4). Each independent variable is manipulated or varied independently of the others in order to examine their effects on the dependent variable(s). Therefore, there are three independent variables in this 2x2x4 research design.

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Answer:

Shown in the picture

We assume that with a linear relationship between two variables, for any fixed value of x, the observed residuals follows a normal distribution.

This assumption is based on the Central Limit Theorem, which states that when the sample size is large enough, the distribution of sample means will be approximately normal, regardless of the shape of the underlying population distribution.

In the case of a linear relationship between two variables, we can assume that the residuals (the difference between the observed y values and the predicted values based on the linear regression model) follow a normal distribution with mean 0 and constant variance. This assumption is important because it allows us to use statistical methods that rely on normality, such as hypothesis testing and confidence intervals.

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Answer:

Step 4

Step-by-step explanation:

Given: Steps used by Shelly to evaluate the expression

To find: step that includes Shelly's mistake

Solution:

According to PEMDAS,

P denotes Parentheses

E denotes Exponents

M denotes Multiplication

D denotes Division

A denotes Addition

S denotes subtraction

Step 3 is \(-20\div 5-1\) and step 4 is \(-20\div 4\)

In step 4, first subtraction operation has been applied before the division operation.

There is a mistake in step 4 as according to PEMDAS, first -20 should be divided by 5 then 1 should be subtracted from the resultant number.

Answer:

Step 4 is correct for plato

Step-by-step explanation:

-20 divided by 4.

To find the expression that represents the length of the wallpaper, we need to use the given equation for the area of the rectangular piece of wallpaper, which is y = 5x² + 20x + 20.

We know that the area of a rectangle can be found by multiplying its length by its width. In this case, the width of the wallpaper is given by the expression (x + 2), so we can write:

length * width = y

Substituting the expression for the area of the wallpaper given by y = 5x² + 20x + 20 and the expression for the width of the wallpaper given by (x + 2), we get:

length * (x + 2) = 5x² + 20x + 20

To solve for the length, we can divide both sides of the equation by (x + 2):

length = (5x² + 20x + 20) / (x + 2)

Now we have an expression for the length of the wallpaper in terms of x. We can simplify this expression by using polynomial long division or factoring, but it is already in its simplest form.

Therefore, the expression that represents the length of the wallpaper is:

length = (5x² + 20x + 20) / (x + 2)

To summarize, we used the formula for the area of a rectangle and the expression for the width of the wallpaper to derive an expression that represents the length of the wallpaper. The resulting expression is (5x² + 20x + 20) / (x + 2). This expression can be used to calculate the length of the wallpaper for different values of x.

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An average of 174 minutes per day with a standard deviation of 18 minutes, while Class-10 students spent an average of 118 minutes with a standard deviation of 45 minutes.

To compare the means of two independent samples, a hypothesis test can be performed using either the Z-test or t-test, depending on the sample size and whether the population standard deviations are known. In this case, the sample sizes are both 15, which is relatively small. Since the population standard deviations are unknown, the appropriate test to use is the two-sample t-test.

The null hypothesis (H0) states that the mean time spent by Class-9 students is equal to the mean time spent by Class-10 students. The alternative hypothesis (Ha) states that the means are different. By conducting the two-sample t-test and comparing the t-value to the critical value at a 0.01 significance level (using the appropriate degrees of freedom), we can determine whether to reject or fail to reject the null hypothesis.

If the calculated t-value falls within the rejection region (beyond the critical value), we reject the null hypothesis and conclude that the mean time spent by Class-9 students differs significantly from that of Class-10 students. On the other hand, if the calculated t-value falls within the non-rejection region, we fail to reject the null hypothesis, indicating that there is not enough evidence to conclude a significant difference between the mean times spent by the two classes.

The actual calculations and final decision regarding the rejection or acceptance of the null hypothesis can be done using statistical software or tables.

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Answer:

In order from top to bottom, the tiles are,

x=5+4i

x=-4+5i

x=4-5i

Step-by-step explanation:

All of these solutions are complex numbers, which means the equation has imaginary roots. Complex numbers are written in the form of a+bi, where a is a real number and bi represents the imaginary number. For quadratic equations, complex roots are often also complex conjugates. This means that the solution is x=a+bi, so to find the other conjugate simply switch the sign. For example, if x=5-4i is a solution, so is x=5+4i.

Answer:

CORRECT

Step-by-step explanation:

No, it is not true that ∫_0^1 l(θ | x0) dθ = 1. The integral of the likelihood function l(θ | x0) over the parameter space [0, 1] does not necessarily equal 1.

The likelihood function l(θ | x0) measures the probability of observing the data x0 given the parameter value θ. It is a function of the parameter θ, and not a probability distribution over θ.

Therefore, the integral of the likelihood function over the parameter space does not have to equal 1, unlike the integral of a probability density function over its support.

In fact, the integral of the likelihood function over the parameter space is often referred to as the marginal likelihood or the evidence, and is used in Bayesian inference to compute the posterior distribution of the parameter θ given the data x0. The marginal likelihood is given by: ∫_0^1 l(θ | x0) p(θ) dθ

where p(θ) is the prior distribution of the parameter θ. The marginal likelihood is used to normalize the posterior distribution so that it integrates to 1:
p(θ | x0) = l(θ | x0) p(θ) / ∫_0^1 l(θ | x0) p(θ) dθ

In conclusion, the integral of the likelihood function over the parameter space does not necessarily equal 1, and is used in Bayesian inference to compute the posterior distribution of the parameter θ given the data x0.

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Answer:

3.9

Step-by-step explanation:

Answer: The measure of ∠RTS is 102°. The answer is (d).

Step-by-step explanation:

We know that the sum of the angles in a quadrilateral is 360°. Therefore, we have:

∠R + ∠T + ∠Q + ∠S = 360°

Since RP and QS are diameters, we have ∠R = ∠P = 90° and ∠Q = ∠S = 90°. Substituting these values, we get:

90° + ∠T + 90° + ∠S = 360°

Simplifying the equation, we get:

∠T + ∠S = 180°

Now we use the fact that the measure of ∠RTQ is 12° less than the measure of ∠RTS, which can be written as:

∠RTQ = ∠RTS - 12°

Substituting this into the equation above, we get:

∠T + ∠RTS - 12° = 180°

Simplifying, we get:

∠T + ∠RTS = 192°

We can now solve for ∠RTS by substituting ∠T + ∠S = 180° into the equation above:

∠RTS = 192° - ∠T

Substituting this into the equation for ∠RTQ above, we get:

∠RTQ = (192° - ∠T) - 12° = 180° - ∠T

Since the sum of the angles in triangle RTQ is 180°, we have:

∠RTQ + ∠T + ∠R = 180°

Substituting the values for ∠R and ∠RTQ, we get:

90° + ∠T + (180° - ∠T) = 180°

Simplifying, we get:

∠T = 90°

Substituting this value into the equation for ∠RTS above, we get:

∠RTS = 192° - ∠T = 102°

Therefore, the measure of ∠RTS is 102°. The answer is (d).

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Answer:

18

Step-by-step explanation:

Answer:

m∠Y  = 40°

Step-by-step explanation:

The sum of the three angles of a triangle must equal 180°

Thus

m∠W + m∠X + m∠y = 180°

→   (10x + 17) +  (2x - 9) + (3x + 7) = 180

→   10X + 17 + 2X + 9 + 3X + 7 = 180

Collecting like terms
→  10X + 2X + 3X + 17 - 9  + 7  = 180°

→ 15x + 15 = 180

Subtract constant 15 from both ssides:

→ 15x + 15 - 15 = 180 - 15

→ 15x = 165

Divide both sides by 15

→ 15x/15 = 165/15

→ x = 11

m∠Y = 3x + 7

m∠Y = 3 x 11 + 7

m∠Y  = 33 + 7

m∠Y  = 40°

The estimated derivative of y with respect to x at x = -4 is 8.

To estimate the derivative of y with respect to x at x = -4, we can use the definition of a derivative:

dy/dx = lim(h -> 0) [f(x+h) - f(x)]/h

Plugging in the given function, we get:

dy/dx = lim(h -> 0) [(6 - (x+h)^2) - (6 - x^2)]/h
dy/dx = lim(h -> 0) [(6 - x^2 - 2xh - h^2) - (6 - x^2)]/h
dy/dx = lim(h -> 0) [-2xh - h^2]/h
dy/dx = lim(h -> 0) [-2x - h]

Now we can estimate the derivative at x = -4 by plugging in this value for x:

dy/dx x=-4 = -2(-4) = 8

Therefore, the estimated derivative of y with respect to x at x = -4 is 8.

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The two numbers will be denoted by "x" and "y." We can create two equations using the data provided:

x : y = 11 : 5

x - y = 24

We can first get a common multiple of the two numbers in the ratio 11:5 in order to determine x and y. Since 55 is a frequent multiple of 11 and 5, we may write:

x = 11 * 5 = 55

y = 5 * 11 = 55

With x and y in hand, we can apply the second equation to determine their difference:

x - y = 55 - 55 = 24

Therefore, the two figures are 55 and 31.

A fractional comparison of two values is called a ratio. When two numbers are compared, their ratio is represented as 11:5, which signifies that the first number is worth 11 times what the second number is worth.

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The probability that you take different colors in two"picks" is 31/45.

You could choose one red followed by one blue, one blue followed by one red, one blue followed by one black, one black followed by one blue, one black followed by one red, or one red followed by one black.

P( different colors) = P( one blue followed by one red ) +P( one red followed by one blue) + P( one blue followed by one black ) +P( one black followed by one blue) +P( one black followed by one red ) +P( one red followed by one black)

P(one blue followed by one red) = (10/20)( 6/19) = 3/19

P(one red followed by one blue) = (6/20)( 10/19) = 3/19

P(one blue followed by one black) = (10/20)( 4/19) = 2/19

P(one black followed by one blue) = (4/20)( 10/19) = 2/19

P(one red followed by one black) = (6/20)( 4/19) = 6/95

P(one black followed by one red) = (4/20)( 6/19) = 6/95

P(different colors )= 3/19 + 3/19 + 2/19 + 2/19 + 6/95 + 6/95
                                = 31/45

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The continuous compounding equation shown the value of the account after t years is given as follows:

\(A(t) = 8000e^{0.079t}\)

The percentage of growth per year (APY) is of 8.22%.

The balance of an account after t years of continuous compounding is given by the equation presented as follows:

\(A(t) = A(0)e^{kt}\)

In which the variables of the equation are described as follows:

In the context of this problem, the values of these parameters are given as follows:

A(0) = 8000, k = 0.079.

Hence the equation is:

\(A(t) = 8000e^{0.079t}\)

The percentage of growth per year (APY) is calculated as follows:

\(e^{k} - 1 = e^{0.079} - 1 = 1.0822 - 1 = 0.0822 = 8.22\%\)

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Answer:

Its d

Step-by-step explanation:

It is d because he did sell 500 cars and tehy earned 1000 dollars :)

The angles whose measure are greater than the measure of ∠1 are ∠2, ∠3, ∠7, ∠5 .

Given is a geometrical image as shown in the image.

The angles whose measure are greater than one are as follows -

∠2 > ∠1

∠3 > ∠1

∠7 > ∠1

∠5 > ∠1

Therefore, the angles whose measure are greater than the measure of ∠1 are ∠2, ∠3, ∠7, ∠5 .

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Answer:

B

Step-by-step explanation:

f(x)=(x-3)(x²+2x+2)

when solve for x using quadratic formula fo x in (x²+2x+2):

x=(-b±√b²-4ac)/2a  a=1,b=2,c=2

x=-1±i

f(x)=(x-3)(x+1-i)(x+1+i)

The complete factored form of the polynomial is F(x) = (x - 3)(x + 1 + i)(x + 1 - i).

To find the complete factored form of the polynomial F(x) = x³ - x² - 4x - 6, we can factor it using various methods such as synthetic division or factoring by grouping.

Factoring the polynomial, we get:

F(x) = (x + 3)(x - 1)(x + 2)

Comparing the factored form with the options provided:

A. F(x) = (x + 3)(x + 1)(x - 1)

This option does not match the factored form of the polynomial.

B. F(x) = (x - 3)(x + 1 + i)(x + 1 - i)

f(x)=(x-3)(x²+2x+2)

When solve for x using quadratic formula fo x in (x²+2x+2):

x=(-b±√b²-4ac)/2a  

x=-1±i

f(x)=(x-3)(x+1-i)(x+1+i)

So, the is the required factored form.

C. F(x) = (x - 3)(x + 1 + i)(x - 1 - i)

This option does not match the factored form of the polynomial.

D. F(x) = (x + 3)(x + 1 + i)(x + 1 - i)

This option does not match the factored form of the polynomial.

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There would be about 12 pieces of fruit in the bag.

The PMF of Y=max{0,X} is P(Y=k) = (b-k+1)/(b-a+1) for k = 0,1,2,...,b and P(Y=k) = 0 for all other values of k.

The PMF of W=min{0,X} is P(W=k) = (k-a+1)/(b-a+1) for k = a,a+1,a+2,...,0 and P(W=k) = 0 for all other values of k. This is because for Y, the probability of X taking a certain value decreases as that value gets larger, but for W, the probability of X taking a certain value increases as that value gets more negative.

Therefore, the PMF for Y will have a peak at k=0 and decrease as k increases, while the PMF for W will have a peak at k=a and decrease as k becomes more negative.

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Answer:

x = \(\frac{c+d}{a-b}\)

Step-by-step explanation:

Given

ax - c = bx + d ( collect the terms in x together )

Subtract bx from both sides

ax - bx - c = d ( add c to both sides )

ax - bx = c + d ← factor out x from each term on the left side

x(a - b) = c + d ← divide both sides by (a - b )

x = \(\frac{c+d}{a-b}\)

Answer:

 x= c+d/a+e

Step-by-step explanation:

oh oh i had this question jn leh me find it !!!

Answer: 175

Step-by-step explanation:

If you take 100(as a percentage) and divide it by 40, you get 2.5, 70x2.5 is 175

Answer:

9 units

Step-by-step explanation:

You can split the polygon into two right triangles and a rectangle. The two right triangles each equal to 1.5 and the rectangle is equal to 6 so 6+1.5+1.5=9

Let

ATQ

\(\\ \sf\longmapsto LB=Area\)

\(\\ \sf\longmapsto x(x+2)=99\)

\(\\ \sf\longmapsto x^2+2x=99\)

\(\\ \sf\longmapsto x^2+2x-99=0\)

\(\\ \sf\longmapsto x^2+11x-9x-99=0\)

\(\\ \sf\longmapsto x(x+11)-9(x+11)\)

\(\\ \sf\longmapsto (x-9)(x+11)=0\)

Take positive

\(\\ \sf\longmapsto x=9\)

Answer:

\(length = 11ft \\ width = 9ft\)

Step-by-step explanation:

Let the wide be x

length = x+2

Area = Length * width

\(99 = x(x + 2) \\ \)

Now let's solve the expression and find the width

\(x(x + 2) = 99 \\ {x}^{2} + 2x = 99 \\ {x}^{2} + 2x - 99 = 0 \\ {x}^{2} + 2x = 99 \\ {x}^{2} + 2x + 1 = 99 + 1 \\ {(x + 1)}^{2} = 100 \\ x + 1 = \sqrt{100} \\ x + 1 = ±10 \\ x = ±10 - 1 \\ \\ x = + 10 - 1 \\ = 9 \\ \\ x = - 10 - 1 \\ = - 11\)

As a negative number cannot be get as a length

We have to get the positive number as the length

so,

\(x = 9ft\)

\(x + 2 = 9 + 2 \\ = 11ft\)

hope this helps you.

let me know if you have another questions :-)