ABCD is a parallelogram, find the value of y

Answer:

Step-by-step explanation:

Given the formula for calculating the area as;

A = xw

x is the length

w is the width

Given;

x = 7.8in

Area A = 60.8in²

Required

width w

Substitute the given parameters into the formula as shown;

! = xw

60.8 = 7.8w

divide both sides by 7.8

60.8/7.8 = 7.8/7.8w

7.795 = w

w = 7.8 in (to the nearest tenth)

Answer:

14

Step-by-step explanation:

The formula is

376.8 =

Answer:

x = 3 +√43, x = 3 - √43

Step-by-step explanation:

x^2 - 6x - 34 = 0

move the 34 across

x^2 - 6x = 34

take -6 and divide by two, then square it

(-6/2)^2 = 9

add the product to your equation

x^2 - 6 + 9 = 34 + 9

solve

(x - 3)^2 = 43

x - 3 = ± √43

x = 3 ± √43

5430. Since 2 is smaller than 5, we will not round 32 to 40.

The time series component that exhibits a repeating pattern over successive periods, often one-year intervals is called the seasonal component.

The seasonal component is that portion of the variations in a time arrangement representing intra-year changes that are more or less steady year after year with regard to timing, direction, and magnitude. The seasonal component is additionally alluded to as the seasonality of a time series. The seasonal component reflects “normal” varieties that repeat each year to the same extent.

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The time series component that exhibits a repeating pattern over successive periods, often one-year intervals is called

A. a cyclical component

B. a trend component.

C. seasonal component.

D. irregular component.

Answer:

5·5·5·5·y·y·y·y·y·y·y

Step-by-step explanation:

5·5·5·5·y·y·y·y·y·y·y

Expanded form just means to right the expression out without the exponents.

The maximum amount you can earn is $540

a. y = 13.50x , 10 <= x <= 40
b. x = 10, y = 135; x = 20, y= 270; x = 30, y = 405; x = 40, y = 540
c. Domain: 10 <= x <= 40; Range: 0 <= y <= 540
d. The minimum amount you can earn in a week with this job is $135. The maximum amount you can earn is $540.

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The given expression is

Replacing the given values, we have

Answer:

The Correct answer is

57°

Answer:

\( \approx 31.63 \: {ft}^{2} \)

Step-by-step explanation:

Area of the figure = 2 times the area of one semicircle with radius (5/2 = 2.5) 2.5 ft + Area of triangle with base 6 ft and height 4 ft.

\( = 2 \times \frac{1}{2} \pi {r}^{2} + \frac{1}{2} bh \\ \\ = 3.14 \times {(2.5)}^{2} + \frac{1}{2} \times 6 \times 4 \\ \\ = 3.14 \times 6.25 + 3 \times 4 \\ \\ = 19.625 + 12 \\ \\ = 31.625 \\ \\ \approx 31.63 \: {ft}^{2} \)

Answer:

Can you rephrase the question so I can get a better explanation of what you're trying to ax me

The "switch" statement is useful when you need to test a single variable against a series of exact integer, character, or string values.

The switch statement is a control structure found in many programming languages, including C++, Java, and JavaScript. It allows you to evaluate a variable or expression and compare it against multiple cases.

Each case represents a specific value that the variable or expression is tested against. When a match is found, the corresponding block of code associated with that case is executed.

The switch statement is particularly useful when you have a variable that can take on different values and you want to perform different actions based on those values. Instead of writing multiple if-else statements, the switch statement provides a more concise and efficient way to handle such scenarios.

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By applying the simple concept of algebra, the equation showing the number of Kenny's baseball cards (b) is b = 82 + 159. So it can be concluded that the number of Kenny's baseball cards is 241 cards.

The use of algebra in everyday life.

Algebra is a branch of mathematics that uses numbers, symbols, or letters to solve math problems. In everyday life, algebra is often used, starting from simple mathematical operations, to financial planning, calculating time/mileage, and so on.

In the above questions, we can take some notes as follows:

Baseball cards sold (x) = 82 cards.

Remaining baseball cards (y) = 159 cards.

The number of baseball cards owned by Kenny (b):

b = x + y

  = 159 + 82

  = 241 cards

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False. Not every smooth curve has exactly one admissible parametrization. Admissible parametrizations refer to a specific way of representing a curve using a parameter, which satisfies certain conditions such as being injective and differentiable.

However, there may be multiple ways to parameterize the same curve while still maintaining these conditions. For example, the unit circle can be parametrized by both (cos(t), sin(t)) and (cos(2t), sin(2t)), both of which are admissible. Therefore, it is possible for a smooth curve to have more than one admissible parametrization.
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Answer:

x = 0.38

Step-by-step explanation:

3958x - 2039 = 3405

               - 2039   -2039

3958x = 1366

/3958     /3598

x = 0.38

rounded to the nearest hundredth

The appropriate test statistic for this test is approximately 0.2103 (rounded to 4 decimal places).

To find the appropriate test statistic for a 2-sample z-test for two proportions, we need to calculate the standard error and then use it to compute the z-score. The formula for the standard error is:

SE = sqrt[(p1 * (1 - p1) / n1) + (p2 * (1 - p2) / n2)]

Where p1 and p2 are the sample proportions, and n1 and n2 are the sample sizes.

In this case, we have the following values:

X1 = 24 (number of successes in sample 1)

n1 = 200 (sample size 1)

X2 = 17 (number of successes in sample 2)

n2 = 150 (sample size 2)

To calculate the sample proportions, we divide the number of successes by the respective sample sizes:

p1 = X1 / n1 = 24 / 200 = 0.12

p2 = X2 / n2 = 17 / 150 = 0.1133

Now, we can plug these values into the formula to calculate the standard error:

SE = sqrt[(0.12 * (1 - 0.12) / 200) + (0.1133 * (1 - 0.1133) / 150)]

SE ≈ 0.0319

Finally, the test statistic (z-score) is calculated by subtracting the two sample proportions and dividing by the standard error:

Z = (p1 - p2) / SE

Z = (0.12 - 0.1133) / 0.0319

Z ≈ 0.2103

Therefore, the appropriate test statistic for this test is approximately 0.2103 (rounded to 4 decimal places).

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y +9 >= -1

Sum of a number(y) and 9. Is greater than or equal to negative one. Sum means add, so add y, and 9. It has to be atleast negative one, so greater than (0,1,2,3...), or equal to(-1).

Hope this helps, if you have more questions, feel free to ask.

The sum of a number y and 9 is at least -1 as an inequality is y + 9 ≥ 1.

In mathematics, "inequality" refers to a relationship between two expressions or values that are not equal to each other. To solve the inequality, you may multiply or divide each side by the same positive number, add the same amount to each side, take the same amount away from each side, and more. You must flip the inequality sign if you multiply or divide either side by a negative number.

Given:

An expression,

The sum of a number y and 9 is at least -1.

To find the number in the numerator form,

The sum of y and 9,

y + 9

And the value is at least -1.

So,

y + 9 ≥ 1

Therefore, the inequality is y + 9 ≥ 1

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Answer:

There is not enough evidence to support the claim that drug is effective at 1%

Step-by-step explanation:

For this we use the pored test as we have dependent test;

Difference :

10,5,-5,3,-3,4,2,-3,0,10,8,-2,3,-2,5,5,4,0

Hypothesis :

H0 : μd = 0

H0 : μd ≠ 0

The mean of d, dbar = Σd / n = 44 / 18 = 2.44

The standard deviation, Sd = 4.45 (using calculator)

The test statistic, T : dbar / (Sd/√n)

T = 2.44 / (4.45/√18)

T = 2.44 / 1.0488750

T = 2.326

Degree of freedom, df = n - 1 ; 18 - 1 = 17

The Pvalue = 0.0326

α = 0.01

Since Pvalue < α ; we fail to reject H0

The character of the string "str1" = part1 will be printed.

The correct option is C.

We have,

str1 = "part1"

str2 = "part2" for x in str1: print (x, end=" " )

The program will print each character of the string "str1" on a separate line, followed by a space.

In this case, the string "str1" is "part1", so the program will print "p a r t 1" (with spaces in between each character).

The string "str2" is not involved in the loop, so it will not be printed.

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Answer: m>-64

Step-by-step explanation:\

please give brainliest

- Hunter Cross

Hope it helped

The solution of the inequality (5/8) m > −40 will be greater than negative 64. Then the correct option is A.

The allocation of weights to the important variables that produce the calculation's optimum is referred to as a direct consequence.

Inequality is defined as an equation that does not contain an equal sign. Inequality is a term that describes a statement's relative size and can be used to compare these two claims.

The inequality is given as,

(5/8) m > −40

Solve the inequality, then we have

(5/8) m > −40

m > −40 × 8 / 5

m > −8 × 8

m > −64

The solution of the inequality (5/8) m > −40 will be greater than negative 64. Then the correct option is A.

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Answer:

wheres the graph? u can insert a image!

Step-by-step explanation:

Mia's total distance driven is given by the function C(m) = 55m, where m represents the number of hours she has been driving, and the common difference is not applicable in this context.

In this scenario, Mia is driving at a constant speed of 55 miles per hour. We can represent the total distance driven, denoted as "C(m)," using a function where "m" represents the number of hours Mia has been driving.

The function C(m) = 55m indicates that the total miles driven is equal to 55 times the number of hours Mia has been driving.

For example, if Mia drives for 2 hours, we can calculate the total distance driven by substituting m = 2 into the function:

C(2) = 55 \(\times\) 2 = 110 miles.

This means that after driving for 2 hours, Mia would have covered a distance of 110 miles.

The common difference mentioned in the question seems to be unrelated to this scenario.

In the context of arithmetic sequences or series, the common difference represents the constant amount by which each term in the sequence increases or decreases.

However, in the given scenario, there is no sequence mentioned, so the concept of a common difference does not apply.

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∂f/∂x = (∂f/∂x), ∂f/∂x = (∂f/∂x) - (∂f/∂y), ∂f/∂x = (∂f/∂x) - (∂f/∂y)(2x/√(a - x^2)).

These are the partial derivative expressions for the function f(x, y) along the specified paths.

Calculate the partial derivatives of the function f(x, y) with respect to x on the paths h(x, y) = y, h(x, y) = y + x, and h(x, y) = x^2 + y^2.

To calculate the partial derivatives of the function f(x, y) with respect to the variable x on different paths, we will evaluate the derivatives along each path and solve the resulting equations.

To find the derivative of f(x, y) with respect to x along this path, we treat y as a constant:

∂f/∂x = ∂f(x, y)/∂x = ∂f(x, a)/∂x

We differentiate f(x, a) with respect to x using the chain rule:

∂f/∂x = ∂f(x, a)/∂x = (∂f/∂x)(∂x/∂x) + (∂f/∂y)(∂y/∂x) = (∂f/∂x) + (∂f/∂y)(0)

Since y = a is constant along this path, ∂y/∂x = 0.

Therefore, ∂f/∂x = (∂f/∂x).

Similarly, to find the derivative of f(x, y) with respect to x along this path, we treat y + x = a as a constant:

∂f/∂x = ∂f(x, y)/∂x = ∂f(x, a - x)/∂x

Using the chain rule again:

∂f/∂x = ∂f(x, a - x)/∂x = (∂f/∂x)(∂x/∂x) + (∂f/∂y)(∂y/∂x) = (∂f/∂x) + (∂f/∂y)(-1)

Since y + x = a, we have ∂y/∂x = -1.

Therefore, ∂f/∂x = (∂f/∂x) - (∂f/∂y).

Similarly, we differentiate f(x, y) with respect to x along this path:

∂f/∂x = ∂f(x, y)/∂x = ∂f(x, √(a - x^2))/∂x

Using the chain rule:

∂f/∂x = ∂f(x, √(a - x^2))/∂x = (∂f/∂x)(∂x/∂x) + (∂f/∂y)(∂y/∂x) = (∂f/∂x) + (∂f/∂y)(-2x/√(a - x^2))

Therefore, ∂f/∂x = (∂f/∂x) - (∂f/∂y)(2x/√(a - x^2)).

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The kilogrammes of calcium found in 173 pounds of calcium is = 78.5 kg. That is option A.

First convert the 173 pounds of calcium to gramma

1 lb(pounds) = 454 g;

Therefore 173 pounds = 173 ×454

                                    = 78,542g

But,             1000 g = 1kg

Therefore, 78542g = 78542  ÷1000

                                = 78.542

                                =78.5kg.

Therefore, the kilogrammes of calcium found in 173 pounds of calcium is = 78.5kg.

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Answer:n=-3.1

Step-by-step explanation:

2n + 3 = -3.2

Subtract 3 on both sides

2n+3-3=-3.2-3

2n=-6.2

Divide 2 on both sides

2n/2=-6.2/2

n=-3.1

Answer:

n= -3.1

Step-by-step explanation:

hope this helps have a nice day :)

For the equation f(x) = 2^(2x+1), when x = 1, the y-coordinate is found by substituting x into the equation, resulting in y = 8.

To determine the y-coordinate for the ordered pair (1, ?) on the graph of f(x) = 2^(2x+1), we substitute x = 1 into the equation.
By plugging in x = 1, we get f(1) = 2^(2(1)+1) = 2^(2+1) = 2^3 = 8.
Therefore, the y-coordinate for the ordered pair (1, ?) on the graph of f(x) = 2^(2x+1) is 8.

In the given equation, f(x) = 2^(2x+1), the exponent (2x+1) represents the power to which 2 is raised. When x = 1, the exponent becomes 2(1) + 1 = 2 + 1 = 3. Substituting this value back into the equation gives us f(1) = 2^3 = 8. Hence, the y-coordinate for the ordered pair (1, ?) on the graph of f(x) = 2^(2x+1) is 8. This means that when x equals 1, the function f(x) yields a value of 8, indicating the point (1, 8) on the graph.

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From Properties of Triangles , both figures are connected and angle ∠B or ∠2 is 65°

Basic properties of triangles are:

1)A triangle's (of all varieties) total sum of angles is 180°.

2)The length of a triangle's two longest sides added together is longer than the third side.

3)Similar to this, the length of the third side of a triangle's third side is shorter than the difference between its two sides.

4)The longest of a triangle's three sides is the side that faces the larger angle.

5)A triangle's exterior angle is always equal to the product of its inner and exterior opposite angles. The outer angle attribute of a triangle refers to this characteristic.

As sum of angles in a triangle is 180° and sum of angles on a line is also 180°, both the figures are related.

Sum of angles=180°;

\(50+B+65=180;\\B=65\)

∠B=65°

Similarly angle 2 is also 65°

From Properties of Triangles , both figures are connected and angle ∠B or ∠2 is 65°

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The null hypothesis in a chi-square test for goodness of fit involves frequencies for the entire population, not just proportions or frequencies for the sample. c.

In a chi-square test for goodness of fit, the null hypothesis specifies the expected frequencies or counts for different categories in the entire population being studied.

The test compares the observed frequencies in the sample to the expected frequencies under the null hypothesis to determine if there is a significant difference between the observed and expected distributions.

The chi-square test for goodness of fit assesses whether the observed frequencies in the sample deviate significantly from the expected frequencies specified by the null hypothesis for the entire population. The test evaluates if the observed data supports or contradicts the null hypothesis, which assumes that the observed frequencies follow a specific distribution or proportions.

The null hypothesis in a chi-square test for goodness of fit defines the predicted frequencies or counts for various categories in the total population under investigation.

The test determines if there is a significant discrepancy between the observed and predicted distributions by comparing the observed frequencies in the sample to the anticipated frequencies under the null hypothesis.

The chi-square test for goodness of fit determines if the sample's observed frequencies differ noticeably from the null hypotheses' predicted frequencies for the overall population.

The null hypothesis, which holds that the observed frequencies follow a particular distribution or proportions, is assumed in the test, and it is determined if the observed data supports or refutes it.

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Answer:

3.555555555555556

Step-by-step explanation:

Decimal: 3.555555555555556

Fraction: 32/9