Write the following as an expression: One-fourth the difference between 2/3 and
1/2 *

Answer:

8) 1/4

9) 1/4

10) 1/8

11) 3/8

Here are the correct answers :)

Answer:

P(2): 1/4

P(1): 1/4

P(4): 1/8

P(3 or 5): 3/8

Step-by-step explanation:

The areas marked 1, 2, and 3 each take up 1/4 of the box. This means that the probability that you will spin the arrow and land in any of those spaces is 1/4 each.

Areas 4 and 5 are HALF the size of areas 1, 2, and 3. This means that areas 4 and 5 are half of 1/4. Half of 1/4 is 1/8.

The word "or" means that you ADD whatever two probabilities they are asking for. In this case, you add areas 3 and 5. So, add 1/4 + 1/8 = 3/8.

(an easy way to add 1/4 to 1/8 is to change 1/4 to 2/8. Then you can add the two areas easily)

The regular price of one baseball bat is $80.40.

A discount is a drop in a product's or service's price. It is often provided by the vendor as an inducement to lure customers into making a purchase. Often, the discount is indicated as a percentage or a dollar amount off the list price.

The standard price and the discount rate must be known in order to determine a discount. Often, the discount rate is expressed as a percentage. We multiply the usual price by the discount rate to determine the discount amount.

Given that, coach buys 5 identical baseball bats for a total of $327.45.

Thus,

5P = 327.45

P = 65.49

So one bat cost him 65.90.

Now, the regular cost of the bat will be:

Price = 65.90 + 14.50

Price = 80.40

Hence, the regular price of one baseball bat is $80.40.

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Answer:

$14:$49:$7

Step-by-step explanation:

To solve this question you first add the ratios.

So 2+7+1, which is 10. You then take this number and divide it by 70 to find 1 part. 70 divide by 10 is 7, which represents 1 part.

7 times by 2 is 14, 7 times by 7 is 49 and 7 times by 1 is 7.

Thus you get the ratio, $14:$49:$7.

And if you add 14+49+7, you get 70!

Eduro's mistake of solving the inequality -4x > 120 is adding 4 to both sides instead of dividing both sides by -4

minus four x greater than 120

-4x > 120

x < 120/-4

There is a change in the inequality sign from greater than to less than because the inequality is been divided by -4

x < -30

Check:

-4x > 120

-4(-30) > 120

120 > 120

Therefore, Eduro's mistake of solving the inequality -4x > 120 is adding 4 to both sides instead of dividing both sides by -4

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d)An error because d cannot be negative.

According to the data, effect sizes such as Cohen's d typically range from 0 to positive values, and negative values do not make sense in this context. Therefore, an effect size of d = -63 is likely an error or a typo.

Assuming that the correct effect size is a positive value, the magnitude of the effect size can be described as follows based on Cohen's convention:

However, it's important to note that the interpretation of effect sizes also depends on the context and the specific field of study.

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Answer:

Step-by-step explanation:

M^5

(2/3)^5

2^5/3^5

32/243

Answer:

0.13

Step-by-step explanation:

M ^5

Divide 2/3

Equals 0.6667

0.6667 ^ 5

Equals 0.13 Rounded

The point slope formula is \(y-y_1=m(x-x_1)\).

The point slope form is used to calculate the equation of a straight line that is inclined to the x-axis at a certain angle and passes through a particular point.

When we know the slope of a line and a point on it, we may use the point slope formula.

Point Slope Formula:

\(y-y_1=m(x-x_1)\)

where,

(x, y) is a point on the line at random (which should be kept as variables while applying the formula).

(x1, y1) is the line's fixed point.

slope of the line is 'm'.

Thus, the point slope formula is \(y-y_1=m(x-x_1)\).

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Answer:

Step-by-step explanation:

area of a circle = πr² = 201.062

r² =   201.062/π

r = √(201.062/π) ≅8 cm

d = 16 cm

Answer:

Radius =8

Diamter = 16

That's the answer

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♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️

\( {3}^{ \sqrt{6} } \times {3}^{ \sqrt{4} } = \)

\( {3}^{ \sqrt{6} } \times {3}^{2} = \)

\( {3}^{ \sqrt{6} + 2 } = {3}^{2 + \sqrt{6} } \)

♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️

Answer:

a). 6:51

b). 6:30 am

c). 34 minutes

Step-by-step explanation:

a). Train leaves Westchester at 6:30.

   From the arrival - departure table in column (2),

   Arrival time of the train at middlewich = 6:51

b). Kate has to reach Southam before 9:00 am

   Therefore, time of the latest train that she can catch to get to work on time is 6:30 am

    By this train she can reach at 07:19 at Southam.

c). Duration of journey from Westchester to Eastwick = 06:34 - 06:00

                                                                                        = 00:34

                                                                                        ≈ 34 minutes

The solution to the equation -2 = -4m + 10 is m = 3.

Here are the solutions to the given equations:

1. -10 = 5+y

To solve for y, we need to isolate y on one side of the equation.

We can do this by adding 10 to both sides of the equation.

-10 + 10 = 5 + y + 10

Simplifying,

-0 = 5 + y

We can further simplify the equation by subtracting 5 from both sides of the equation.

-5 = y

Therefore, the solution to the equation -10 = 5+y is y = -5.2.

10x = 40

To solve for x, we need to isolate x on one side of the equation.

We can do this by dividing both sides of the equation by 10.10x/10 = 40/10

Simplifying,

x = 4

Therefore, the solution to the equation 10x = 40 is x = 4.3.

-2 = -4m + 10To solve for m, we need to isolate m on one side of the equation.

We can do this by subtracting 10 from both sides of the equation.-2 - 10 = -4m.

Simplifying,

-12 = -4mWe can further simplify the equation by dividing both sides of the equation by -4.-12/-4 = m3 = m.

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Answer:

C. 6

Step-by-step explanation:

7n = 42

n = 6

hope this helps

Answer:

Step-by-step explanation:

Given

Solving for n

Correct option is C. 6

Answer:

A , D

Step-by-step explanation:

hello :

b= √18 because : (√18)² =18

b= - √18 because : (-√18)² =18

Answer:

4(x+1)^2

Step-by-step explanation:

i hope this helps :)

\({ \sf{ \underline{ \red{factorise{ \: \: 4 {x}^{2} + 8x + 4}}}}}\)

\({ : { \implies{ \sf{ \green{4 {x}^{2} + (4x + 4x) + 4}}}}} \\ \\ \\ { : { \implies{ \sf{ \green{4 {x}^{2} + 4x + 4x + 4}}}}} \\ \\ \\ { : { \implies{ \sf{ \green{4x(x + 1) + 4(x + 1)}}}}}\)

\({ : { \implies{ \sf{ \green{(4x + 4)(x + 1)}}}}} \\ \\ \\ { :{ \implies{ \sf{ \green{4(x + 1)(x + 1)}}}}}\)

Answer:

Step-by-step explanation:

the angle = (x - 132)°

⇒ x + x - 132 = 180

⇒ 2x = 180 + 132

⇒ 2x = 312

⇒ x = 312/2

⇒ x  = 156°

Since S is the average of the random sample, the expected value (E(S)) and variance (V(S)) are: E(S) = µ and V(S) = σ² / n

For W with v degrees of freedom, we know that E(W) = v and V(W) = 2v.

Now, let's consider the random sample X = (X1, X2, ..., Xn) from a normal distribution with mean y and variance o. The sample variance S^2 is defined as:

S^2 = (1/n-1) * sum(i=1 to n) (Xi - y)^2

where y is the sample mean.

Using properties of the normal distribution, we can derive that E(S^2) = o * (n-1)/n and V(S^2) = (2o^2 * (n-1)^2)/(n(n-2)).

To find E(S) and V(S), we take the square root of E(S^2) and V(S^2) respectively. Thus:

E(S) = sqrt(o * (n-1)/n)

V(S) = sqrt((2o^2 * (n-1)^2)/(n(n-2)))


First, let's discuss the chi-square distribution. If W has a chi-square distribution with v degrees of freedom, the expected value (E(W)) and variance (V(W)) are as follows:

E(W) = v
V(W) = 2v

Now let's consider the random sample from a normal distribution. If X, i = 1, 2,...,n is a random sample from a normal distribution with mean y (µ) and variance σ², we can find the sample mean (S) as:

S = (ΣX_i) / n

Since S is the average of the random sample, the expected value (E(S)) and variance (V(S)) are:
E(S) = µ and V(S) = σ² / n

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Answer:  \((-\infty, -4]\)

Curved parenthesis at negative infinity

Square bracket at -4

====================================================

Work Shown:

\(5(x+4) \le 0 \\\\x+4 \le \frac{0}{5} \\\\x+4 \le 0 \\\\x \le 0-4 \\\\x \le -4 \\\\\)

The last inequality shown above is the same as saying \(-\infty < x \le -4\)

Converting this to interval notation leads to the final answer of \((-\infty , -4]\)

Note the use of a square bracket at -4 to include this endpoint. We can never include either infinity, so we always use a parenthesis for either infinity.

Answer:

50cm

200cm

50cm^2

Step-by-step explanation:

The big square is divided into 4 with a side length of 25cm. 2 small square side lengths make up the big squares.

25 * 2 =

50cm

50 + 50 + 50 +50 =

200

15 +2

17

8 + 2

10

17 * 10 = 170

15 * 8 = 120

170-120 = 50

50cm^2

The required value of y for the unit circle is: 2/3

The circle is defined as the locus of a point whose distance from a fixed point is constant i.e center (h, k).

The equation of the circle is given by:

(x - h)² + (y - k)² = r²

where:

h, k is the coordinate of the center of the circle on coordinate plane.

r is the radius of the circle.

Here,

Equation of the unit circle is given as,

x² + y² = 1

Now substitute the given value in the equation,

5/9 + y² = 1

y² = 1 - 5/9

y² = 4/ 9

y = √(4/9)

y = 2/3

Thus, the required value of y for the unit circle is 2/3

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The number of dummy variables to be entered into a regression model is always equal to the number of groups (k) minus 1 because of a statistical concept known as "dummy variable trap" or "multicollinearity".

In the regression analysis we use the variable of dummy to represent a whole group and sort them into group that could be used further in the analyses. A dummy variable takes the value of 0 or 1, depending on whether the observation, belongs to a particular group or not in a data.

Let us assume that we have k groups, so we will need k-1 dummy variable to present the entire group where we create a situation when the sum of all the dummy variable is equal to 1. This creates a perfect multicollinearity, which makes the regression model impossible to estimate.

So, to avoid this problem, we eliminate one group from the model and use k-1 dummy variables to represent the remaining groups for the purpose of easiness in the analysis of the data that we are using for research.

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We solved using elimination method, For the given set of equations, no solution exists.

To create an equation in one variable using the elimination approach, you can either add or subtract the equations. To eliminate a variable, add the equations when the coefficients of one variable are in opposition, and subtract the equations when the coefficients of one variable are in equality.

Given,

two equations as

60x-42y=0                                                          ........... (1)

-100x + 70y=0                                                     ............(2)

Now, multiplying the equation (1) by 10 and (2) with 6

we get the equation as

⇒ (60x-42y=0) × 10

⇒ 600x - 420y = 0                                         ............(3)

⇒ (-100x + 70y=0 ) × 6

⇒ -600x + 420 = 0

Solving equation 2 and 3 simultaneously

⇒ 600x - 420y = 0

⇒ -600x + 420 = 0

⇒ x = y = 0

∴ No Solution exists for this problem

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Answer:

5.7

Step-by-step explanation:

1.9 x 2 = 3.8 + 1.9 = 5.7

Answer:

5.7 miles

Step-by-step explanation:

1.9*2 = 3.8

She ran 3.8 miles on the second day

1.9 + 3.8 = 5.7

She ran 5.7 miles in total

The magnitude of the resultant displacement vector is ________ (provide the calculated value).

The direction of the resultant displacement vector is ________ (provide the calculated direction).

To find the magnitude and direction of the resultant displacement vector using the graphical method, we can use the Pythagorean theorem and trigonometry.

Draw a scale diagram representing the initial and final positions of the pedestrian.

Measure the lengths of the east and north displacements on the diagram.

The east displacement is 6.00 units.

The north displacement is 13.0 units.

Use the Pythagorean theorem to find the magnitude of the resultant displacement vector:

Resultant displacement = √(east displacement^2 + north displacement^2)

Substitute the measured values into the equation and calculate the magnitude.

Use trigonometry to find the direction of the resultant displacement vector:

Direction = arctan(north displacement / east displacement)

Substitute the measured values into the equation and calculate the direction.

Note: Make sure to consider the appropriate quadrant for the direction.

The magnitude of the resultant displacement vector can be calculated using the Pythagorean theorem, and the direction can be found using trigonometry. By substituting the given values into the equations, we can determine the magnitude and direction of the resultant displacement vector using the graphical method.

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Answer:

12x-39

Step-by-step explanation:

40-1=39

The expression that represents the number of kids in the fair is 20 + a

From the question, the given parameters are:

Adults = a

Kids = 20 more kids than adults

The above can be represented as

Kids = 20 + Adults

Substitute Adults = a in the equation Kids = 20 + Adults

So, we have the following equation

Kids = 20 + a

Remove the variable "kids"

So, we have the following expression

20 + a

Hence, the expression is 20 + a

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Answer:

48.96

Step-by-step explanation:

Perform the two multiplications from left to right:

2.23x3.42x6.42 becomes:

     7.6266 · 6.42, or

           48.96

Answer: \(1\dfrac{29}{60}\text{ minutes}\)

Step-by-step explanation:

Given: A total eclipse solar eclipse in 2003 lasted \(5\dfrac{3}{20}\) minutes

\(=\dfrac{5(20)+3}{20}=\dfrac{103}{20}\text{ minutes}\)

& a total eclipse solar eclipse in 2005 lasted \(3\dfrac{2}{3}\)minutes

\(=\dfrac{3(3)+2}{3}=\dfrac{11}{3}\text{ minutes}\)

Difference= \(\dfrac{103}{20}-\dfrac{11}{3}=\dfrac{103\times3-11\times20}{60}\)

\(=\dfrac{309-220}{60}\\\\=\dfrac{89}{60}\text{ minutes}\\\\=1\dfrac{29}{60}\text{ minutes}\)

So, 2003 solar eclipse was \(1\dfrac{29}{60}\text{ minutes}\) longer than solar eclipse in 2005.

Answer:

i think it is A

Step-by-step explanation:

hope this helped!

p.s it would be cool if you give me brainliest.

Answer:

a

Step-by-step explanation:

car is traveling faster

The cost of one sandwich is $4.25

Given data

number of sandwiches = 3

number of drinks = 1

cost of drink = $1.75

tip = $5

total pay = $20.66

sales tax = 8% = 0.08

let the cost of sandwich be x, so that:

1.75 + 0.08*1.75 + 5 + 3x + 3*(0.08 * x) = 20.66

6.89 + 0.24x + 3x =20.66

3.24x = 13.77

x = 4.25

cost of one sandwich is $4.25

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