Genuinely confused rn
Greg has 4 shirts: a white one, a black one, a red one, and a blue one. He also has two pairs of pants, one blue and one tan. What is the probability, if Greg gets dressed in the dark, that he winds up wearing the white shirt and tan pants? Show your work.

im thinking its 1/4 x 1/2 = 1/8, please correct me if im wrong

If I dilate a number by 1 half, then I will have to dilate it again by 2, to get the same to the same number.

As per the question statement, I dilate a number by 1 half.

We are required to calculate that by what should I dilate the result, to reverb back to the same number that I started with.

To solve this question, first we need to understand the concept of Dilation.

Here, since our first dilation of the original number, say "x" reduces it by 1 half, that is, x becomes (x/2),

To get back to x, we will need to multiply (x/2) by 2 again.

[(x/2) * 2] = x.

Therefore, I will need to enlarge our result with a multiplication with 2 to get back to our original number.

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Answer:

There are no solutions.

Step-by-step explanation:

Hope this helped! :D

Answer:

Math = 63

Step-by-step explanation:

Math = x

Eng = Math + 8

Geo = Math + 3

Math + Eng + Geo = 200

Substitute Eng and Geo with information above

Math + (Math + 8) + (Math + 3) = 200

3Math + 8 + 3 = 200

3Math + 11 = 200

3Math = 200 - 11

3Math = 189

Math = 189 ÷ 3

Math = 63

The Electron Geometry Chart is a visual representation of the arrangement of electrons in a molecule. It is used to predict the molecular shape and the bond angles of a molecule based on its electron-group geometry.

Electron geometry is a term used to describe the arrangement of electron groups around a central atom in a molecule. This arrangement is important in determining the molecular shape and the bond angles of the molecule, which can affect its physical and chemical properties.

The Electron Geometry Chart provides a simple and visual way of understanding the arrangement of electrons in a molecule. It shows the number of electron groups surrounding a central atom and the shape that they form.

The chart also shows the bond angles between the electron groups and the central atom, which can be used to predict the molecular shape of the molecule.

The value of the Electron Geometry Chart lies in its ability to help students and scientists understand the relationship between the electron arrangement in a molecule and its molecular shape and bond angles.

By using the chart, students can develop a deeper understanding of molecular geometry and its impact on the physical and chemical properties of a molecule.

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Considering the figure the unknown angles are solved to be

x = 130 degrees

y = 190 degrees

Two or more angles are said to be supplementary if their sum is equal to 180 degrees

In the figure angle 50 and angle x are on a straight line which are supplementary angles because of this we have

50 + x = 180

x = 180 - 50

x = 130 degrees

Also angle y is equal to angle 130 degree according to the vertical angel theorem

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The false statement among the given options is (c) ∀x (x^2>x), since it is not true for all integers in the domain.

(a) ∀x (x^2≠5) is a true statement, since there is no integer x whose square is equal to 5.

(b) ∀x (x^2≥x) is a true statement, since for any integer x, x^2 is always greater than or equal to x.

(c) ∀x (x^2>x) is a false statement, since it is not true for all integers. For example, when x = 0 or x = 1, x^2 is not greater than x.

(d) ∃x (√x=x) is a true statement, since there exists an integer x (i.e., x = 0 or x = 1) such that the square root of x is equal to x.

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Answer:

   C    66 2/3%

Step-by-step explanation:

1/3 =  33 1/3%  

1/3 = 33 1/3 ∙ 1/100             % means 1/100

1/3 = 100/3 ∙ 1/100                33 1/3=    (33∙3+1)/3=100/3

1/3 = 100/300                         Reduce

1/3 = 1/3   Check    so  

1/3 = 33 1/3%

Now     2/3=?%

We know that     2/( 3) =  N ∙ 1/100      meaning of percent (%)

                            2/3 = N/100              

                          200 = 3N

                           200/3 = N

                            66.66 =N      

 Therefore      2/3 = 66 2/3  %            

The regression model has predictive power at the 0.01 level.

The test statistic for this hypothesis test is the F-statistic, which is calculated as:

F = (R2 / k) / ((1 - R2) / (n - k - 1))

where k is the number of predictors (in this case, k = 6) and n is the sample size (n = 37).

Using the reported value of R2 = 0.83, we can calculate the F-statistic as:

F = (0.83 / 6) / ((1 - 0.83) / (37 - 6 - 1)) = 15.22

For this test, the critical value is F0.01,6,30 = 4.03.

Since the calculated F-statistic (15.22) is greater than the critical value (4.03), we can reject the null hypothesis and conclude that the regression model has predictive power at the 0.01 level.

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We reject the null hypothesis and conclude that the chosen model is useful at the 0.01 level of significance.

To decide whether the chosen model is useful or not, we need to perform a hypothesis test for the significance of the regression model. The null hypothesis is that the regression model is not useful, which means that all the regression coefficients are equal to zero.

The alternative hypothesis is that the regression model is useful, which means that at least one regression coefficient is not equal to zero.

We can use the F-test for the significance of the regression model. The test statistic is given by:

F = (SSR/p) / (SSE/(n - p - 1))

where SSR is the regression sum of squares, SSE is the error sum of squares, p is the number of independent variables (excluding the intercept), and n is the sample size.

The regression sum of squares is given by:

SSR = ∑(ŷi - ȳ)²

where ŷi is the predicted value of Y for the ith observation, and ȳ is the mean of Y.

The error sum of squares is given by:

SSE = ∑(yi - ŷi)²

where yi is the observed value of Y for the ith observation.

The degrees of freedom for the numerator and denominator of the F-test are p and n - p - 1, respectively.

Using the given data, we have:

n = 37

p = 6

R² = 0.83

We can calculate the regression sum of squares and error sum of squares using the formulae:

SSR = R² × SST = R² × ∑(yi - ȳ)² = 0.83 × 266.49 = 221.40

SSE = SST - SSR = ∑(yi - ȳ)² - ∑(ŷi - ȳ)² = 266.49 - 221.40 = 45.09

where SST is the total sum of squares, which is given by:

SST = ∑(yi - ȳ)² = 266.49

The degrees of freedom for the F-test are p = 6 and n - p - 1 = 30.

The critical value of F for α = 0.01 and (p, n - p - 1) = (6, 30) is 4.26.

The computed value of F is:

F = (SSR/p) / (SSE/(n - p - 1)) = (221.40/6) / (45.09/30) = 42.53

Since the computed value of F (42.53) is greater than the critical value of F (4.26), we reject the null hypothesis and conclude that the chosen model is useful at the 0.01 level of significance. This means that at least one of the regression coefficients is not equal to zero, and the model as a whole explains a significant amount of the variation in species richness.

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Answer:

a)

Step-by-step explanation:

The graph shows a solid dot on 60 and shading to the right of 60, so it shows all numbers greater than or equal to 60.

a.) tina can type at least 60 words per minute

At least 60 means greater than or equal to 60.

This is the answer.

b.)tina can type at most 60 words per minute

This is less than or equal to 60.

c.)tina can type no more than 60 words per minute

This means less than or equal to 60.

d.) tina can type more than 60 words per minute

This means greater than 60.

To construct a triangle with sides 10 cm, 7 cm, and 8 cm using a pencil, pair of compasses, and ruler, follow these steps:

Use the ruler to draw a straight line connecting the three vertices to complete the triangle.

To measure the size of the angle between the 8 cm and 7 cm sides, follow these steps:

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Answer: 170

Step-by-step explanation: Like I answered before: Angle G and Angle H are consecutive angles, meaning they both add up to 180 degrees. Thus, if 10 is the value of Angle G, Angle H must be 170.

Answer:

<CDA = 170⁰

Step-by-step explanation:

<A + <D = 180⁰ { Adjacent Angles of an parallelogram are supplementary}

10⁰ + <D = 180⁰

<D = 180⁰ - 10⁰ = 170⁰

<D = x⁰ = 170⁰ = <CDA

The turning point of the quadratic function g(x) is (-7, 12), which is choice (1).

In mathematics, a graph is a collection of vertices (also known as nodes) and edges that connect those vertices. The edges represent relationships between the vertices. Graphs can be used to model many different types of systems, including social networks, transportation networks, computer networks, and more.

A graph can be represented visually by drawing points or circles to represent the vertices, and lines or curves to represent the edges. The vertices and edges can also be labeled with numbers or other symbols to give them more meaning.

There are many different types of graphs, including directed graphs (also known as digraphs), undirected graphs, weighted graphs, and more. Directed graphs have edges that have a specific direction, while undirected graphs have edges that go both ways. Weighted graphs have edges with weights, which can represent things like distance, cost, or strength.

Graph theory is the branch of mathematics that studies graphs and their properties. It has many applications in computer science, operations research, physics, and other fields.

If the quadratic function f(x) has a turning point at (-3, 7), then the vertex of the parabola is at (-3, 7).

Now consider the quadratic function g(x) = f(x+4) + 5. To find the turning point of g(x), we need to rewrite g(x) in the form of f(x) by making a substitution. Let y = x + 4, then x = y - 4. We can substitute x = y - 4 into the expression for g(x) to get:

g(y-4) = f(y) + 5

So the graph of g(y-4) is the same as the graph of f(y), but shifted 4 units to the left and 5 units up.

The vertex of f(x) is (-3, 7), so the vertex of f(y) is (-3, 7) after making the substitution y = x + 4. Therefore, the vertex of g(y-4) = f(y) + 5 is obtained by shifting the vertex of f(y) 4 units to the left and 5 units up. This gives:

(-3 - 4, 7 + 5) = (-7, 12)

So the turning point of the quadratic function g(x) is (-7, 12), which is choice (1).

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Answer:

1

Step-by-step explanation:

7x3=21

2x2=4

4x5=20

21-20=1

Answer:

KL = 51

Step-by-step explanation:

1: Make an equation

\(10x -2 = 5x-8 + 7x -12\)

the 10x is the JL line which is the whole line segment

2: start solving by getting all x to be on one side

\(10x-5x-7x = -8 -12 +2\)

3: simplify

\(-2x = -18\)

4: solve for x

\(x=9\)

5: plug x back into KL

\(7(9)-12 = 51\)

\(\sf \orange {Please \: attach \: the \: picture \: of \:}\)

\(\sf \green {the \: Quadrilateral \: please.} \: \)

Explanation

If 2 points corresponds to 1/2 cup, 3 points corresponds to_____. We can write the following proportion:

Answer

Her husband eats 3/4 cup of oatmeal that corresponds to 3 points.

suppose that x is a normal random variable with a mean of 5. if p{x > 9} = .2, So, the approximate variance of the normal random variable X is 22.66.

To find the variance of a normal random variable X with mean 5 and given P(X > 9) = 0.2, we will follow these steps:

1. Recognize that X follows a normal distribution: X ~ N(μ, σ²), where μ = 5 and σ² is the variance we want to find.

2. Convert the probability statement P(X > 9) = 0.2 to a standard normal distribution (Z) by finding the corresponding Z-score:
  Z = (X - μ) / σ

3. Look up the Z-score that corresponds to the given probability (0.2) in a standard normal (Z) table. Since the table typically gives P(Z < z), we'll find P(Z < z) = 1 - 0.2 = 0.8. The corresponding Z-score is approximately 0.84.

4. Plug in the known values and solve for σ:
  0.84 = (9 - 5) / σ
  σ ≈ 4 / 0.84
  σ ≈ 4.76

5. Finally, find the variance, which is σ²:
  σ² ≈ 4.76²
  σ² ≈ 22.66

So, the approximate variance of the normal random variable X is 22.66.

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The approximate variance of the normal random variable X is the square of the standard deviation:

Var(X) ≈ \((4.76)^2\) ≈ 22.65 (rounded to two decimal places).

To approximate the variance of the normal random variable X with a mean of 5, given that P(X > 9) = 0.2, we can use the z-score and standard normal distribution.

First, we calculate the z-score using the standard normal distribution formula:

z = (X - μ) / σ

where X is the value of interest (in this case, 9), μ is the mean (5), and σ is the standard deviation.

Plugging in the values, we get:

z = (9 - 5) / σ = 4 / σ

Next, we use the standard normal distribution table or a calculator to find the z-score that corresponds to a cumulative probability of 0.2. Let's assume that z = -0.84.

Now, we can use the z-score formula to solve for the standard deviation σ:

-0.84 = 4 / σ

Cross-multiplying, we get:

-0.84σ = 4

Dividing both sides by -0.84, we get:

σ ≈ 4 / -0.84 ≈ -4.76

Since the standard deviation cannot be negative, we discard the negative value and take the absolute value, resulting in:

σ ≈ 4.76

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Answer:

5 1/2 miles per 1 hr

Step-by-step explanation:

biked 1 3/8 miles in 1/ of an hour

1 3/8 miles = 11/8 miles in 1/4 of hour

11/8 miles   divided by 1/4 hr

11/8 ÷ 1/4

11/8 * 4/1 =44/8 = 5 4/8 miles in 1 hr or 5 1/2 miles per 1 hr

Please find the photograph for the square root of 3.

4√3

= 4 × 1.732

= 6.928

6.928

Hope it helps

Answer:

The percent decrease is 35%.

Step-by-step explanation:

percent change = (new value - old value)/(old value) × 100%

new value = $52

old value = $80

percent change = ($52 - $80)/($80) × 100%

percent change = -$28/$80 × 100%

percent change = -35%

A negative percent change means a percent decrease.

Answer: 35%

Answer:

See Answer

Step-by-step explanation:

Answer: T= 5 and s =17

Step-by-step explanation: Use the midpoint formula

Solve for T

^xm=^xC+^xD/2

15+t/2=10

15+t=20

Solve for S

^ym=^yC+^yD/2

s+3/2=10

s+3=20

To apply the change of coordinates formula, we multiply the transition matrix B"[I]B' with the coordinate vector [v]B'. Since [v]B' = 0, the result of this multiplication will also be zero. Therefore, [v]B" = 0.

(a) The transition matrix B"[I]B' is given by:

B"[I]B' = [[1, -8], [0, 1]]

(b) To find [v]B", we can use the change of coordinates formula:

[v]B" = B"[I]B' * [v]B'

Since [v]B' = 0, the resulting vector [v]B" will also be zero.

(a) The transition matrix B"[I]B' can be obtained by considering the transformation between the bases B' and B". Each column of the matrix represents the coordinate vector of the corresponding basis vector in B" expressed in the basis B'. In this case, B' = {8:00, X-8D} and B" = {-60, 0}.

Therefore, the first column of the matrix represents the coordinates of the vector -60 expressed in the basis B', and the second column represents the coordinates of the vector 0 expressed in the basis B'. Since -60 can be written as -60 * 8:00 + 0 * X-8D and 0 can be written as 0 * 8:00 + 1 * X-8D, the transition matrix becomes [[1, -8], [0, 1]].

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The percent decrease of the annual distance decrease by 100%.

The quantity reduction in relation to its starting value is calculated using the percent decrease formula. We must first determine the values' differences before we can determine the percentage decrease. Next, multiply the difference by 100 and divide it by the initial value. Percent Decline = [(Old Value - New Value) / Old Value] 100] is the formula for percent decrease.

Given that the truck driven last year = 178540.3 miles.

This year = 0 miles.

The percentage decrease is given by:

Percent decrease = old value - new value / old value (100)

Percent decrease = 178540.3 - 0 / 178540.3 (100)

Percent decrease = 100%

Hence, the percent decrease of the annual distance decrease by 100%.

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Step-by-step explanation:

1525 yards + 1775 yards = 3,300 miles.

3300 yards = 1.875 miles (exactly)

3 miles subtract 1.875 miles = 1.125 miles.

Therefore Chance needs to run 1.125 miles or 1,980 yards more.

Step-by-step explanation:

well well from your question the value of g wasn't given and we are asked to solve for f

I will have to assume g=g

make f subject of formula

first we open the brackets

-3g+6f=5g

collect like terms

6f=5g+3g

6f=8g

f=8g/6

f=(4/3)g

Answer: 25%.

Step-by-step explanation:

There are 12 marbles in total, with 3 being red. 3 in 12 = 1/4 = 25%.