someone help me answer this
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Answer:

x=1/sqrt(2) or sqrt(2)/2

Step-by-step explanation:

Since it's a square, the diagonal is equal to the side*sqrt(2). So 1=x*sqrt(2), x=sqrt(2)/2 or just simply 1/sqrt(2).

The function

y = x³ - x can be obtained from the parent function

y = x³ by applying a vertical stretch and a horizontal reflection.

To determine if the function

y = x³ - x can be obtained from the parent function

y = xⁿ using basic transformations, we need to compare the two functions and see if we can find a sequence of transformations that would convert one into the other.

The parent function is

y = xⁿ, and the given function is

y = x³ - x. To transform the parent function into the given function, we need to apply a series of transformations.

Let's break down the given function

y = x³ - x and see which transformations we can identify:

The term x³ suggests a cubic power function, which is a transformation of the parent function

y = x³. So, we have a vertical transformation that stretches the graph vertically.

The term -x suggests a horizontal reflection of the graph. This means that the graph of

y = x³ - x is reflected across the y-axis compared to the parent function.

Therefore, the given function

y = x³ - x can be obtained from the parent function

y = x³ by applying a vertical stretch and a horizontal reflection.

In summary, the sequence of transformations to obtain the function

y = x³ - x from the parent function

y = x³ is:

Vertical stretch.

Horizontal reflection.

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The inverse DFT of the resulting product to obtain the convolution y[n].

a) To compute y[n] = x[n] * h[n] using a 5-point DFT, we can follow these steps:

Pad x[n] and h[n] with zeros to make them of length 5, if necessary. In this case, both x[n] and h[n] are already of length 5, so no padding is required.

Take the DFT of x[n] and h[n] using a 5-point DFT algorithm. You can use algorithms like the Cooley-Tukey algorithm or any other efficient DFT algorithm to compute the DFT.

Multiply the corresponding frequency components of x[n] and h[n] element-wise.

Take the inverse DFT of the resulting product to obtain y[n].

However, in this case, x[n] has length 5 and h[n] has length 3. To perform linear convolution, the lengths of x[n] and h[n] should be the sum of their individual lengths minus one. In this case, the length of y[n] should be 5 + 3 - 1 = 7. Since the DFT requires the input sequences to have the same length, we cannot directly compute y[n] using a 5-point DFT.

b) To compute the convolution of x[n] and h[n] using a 10-point DFT, we can follow these steps:

Pad x[n] and h[n] with zeros to make them of length 10. Pad x[n] with 5 zeros at the end and h[n] with 7 zeros at the end.

Take the DFT of x[n] and h[n] using a 10-point DFT algorithm.

Multiply the corresponding frequency components of x[n] and h[n] element-wise.

Take the inverse DFT of the resulting product to obtain the convolution y[n].

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Answer:

44.82

Step-by-step explanation:

83 x 54 = 4482

4482 ÷ 100 = 44.82

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Answer:

Let the angles be x, y and z.

We have:

Then z is:

And y is:

The number of balloons out of 48 that will be red would be = 3/435

The number of balloons thrown in a water-ballon fight = 6,960 balloons.

The number of red balloons =870 balloons.

The number of balloons out of 48 that would be red; divide through by two.

= 48/6,960

= 24/3,480

= 12/1740

= 6/870

= 3/435

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Answer:

4.1

Step-by-step explanation:

Step-by-step explanation:

to graph a line always find 2 points out has to go through. that means the points' coordinates make the equation true.

I usually start with x = 0.

point 1 of equation 1 is then

y = -2×0 + 6 = 6

(0, 6)

point 1 of equation 2 is then

y = (3/2)×0 - 1 = -1

(0, -1)

then I pick a value for x that makes the handling of any fractions easier. like in our case x = 2.

point 2 of equation 1 is then

y = -2×2 + 6 = -4 + 6 = 2

(2, 2)

point 2 of equation 2 is then

y = (3/2)×2 - 1 = 3 - 1 = 2

(2, 2)

oh, so I have found the intersection point right away (point 2 of both equations).

so, let's pick a different point 2 for equation 1, like x = 4

y = -2×4 + 6 = -8 + 6 = -2

(4, -2)

with these 4 points you define the 2 lines, and you have the intersection point at (2, 2).

Answer:

A=94

Step-by-step explanation:

Length: 5

Width: 4

Height: 3

Shape: Rectangle prism

Solved for surface area

Formula: A=2(wl+hl+hw)

Formula: L*W*H

Answer: A=94

Hope this helps.

Answer:

17×6=102 because he gave 2 boxes to his brother so he have 6 boxes

Answer: Continuous variables

A variable is said to be continuous if it can assume an infinite number of real values within a given interval

Step-by-step explanation: yep

Step-by-step explanation:

2.9x+4=58

9x=58-4

9x=54

divide both sides by 9

the 9 will divide 54 exactly given you 6

x=6

Answer:

remember, in order to calculate the weight on earth, we need to multiply the mass of the object with the force of Gravity (9.8 m/s^2 on earth)

so, her weight would be:

48 x 9.8 = 470.4 >>>>>>> Will be 470 if we round it to the nearest whole number.

Step-by-step explanation: Hope this helps. Mark me brainliest!! :)))

Answer: 470

Step-by-step explanation:

Answer:

30.3/option 3

Step-by-step explanation:

Area of paralellogram:

((2+10)/2)*4

12/2*4

6*4

24

Area of semicircle

(pi*r^2)/2

3.1415*2^2/2

3.1415*4/2

6.283

Total:

24+6.283 = 30.283

Round it and it becomes 30.3 so option 3

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Answer:

Half of 4 is 2

2^2 = 4

4 x 3.14 = 12.56, 12.56 divided by 2 = 6.28

10 + 2 = 12

12 x 4 = 48, 48 x 1/2 (basically just dividing by 2) = 24

Add the given areas:

24 + 6.28 = 30.28 m^2

The number οf triangles that can be fοrmed is C(5,3)C(10,3) = 10120 = 1200.

In mathematics, cοmbinatiοns refer tο the number οf ways yοu can chοοse a specific number οf items frοm a larger set οf items, where the οrder in which yοu chοοse the items dοes nοt matter.

1. a) 9!/7! = 9*8 = 72

b) The questiοn seems tο be incοmplete. Please prοvide additiοnal infοrmatiοn.

c) P stands fοr permutatiοn, which is the number οf ways tο arrange οbjects in a specific οrder. A Stands fοr cοmbinatiοn, which is the number οf ways tο select οbjects withοut regard tο their οrder.

2. a) There are 6 ways tο chοοse οne apple frοm the basket.

b) There are 6 ways tο chοοse οne apple and 9 ways tο chοοse οne pear, sο there are 6*9 = 54 ways tο chοοse οne apple and οne pear.

c) There are 15 ways tο chοοse either οne apple οr οne pear (6 apples + 9 pears - 0 cοmmοn fruits).

d) There are 698 = 432 ways tο chοοse οne fruit οf οne variety and twο fruits οf anοther variety.

3. a) There are 6 subjects tο be studied and exactly οne lessοn is planned fοr each subject. Therefοre, there are 6! = 720 ways tο make a list οf lessοns fοr this day.

b) There are 6 chοices fοr the first digit, 5 chοices fοr the secοnd digit, 4 chοices fοr the third digit, and 3 chοices fοr the fοurth digit. Therefοre, there are 654*3 = 360 different fοur-digit numbers that can be fοrmed frοm the given digits.

c) There are 8 peοple and we need tο chοοse a cοmmittee οf 4 peοple. Therefοre, there are C(8,4) = 70 ways tο chοοse a cοmmittee οf fοur peοple.

3. Let n be the number οf members in the aerοbics grοup. Each member can shake hands with n-1 οther members. Since each handshake invοlves twο peοple, the tοtal number οf handshakes is n(n-1)/2. We are given that this tοtal is 66, sο we can sοlve fοr n as fοllοws:

\($ \frac{n(n-1)}{2} = 66\)

\(n(n-1) = 132\)

\(n^2 - n - 132 = 0\)

\((n-12)(n+11) = 0\)

Since n must be positive, the only possible value is n=12. Therefore, there are 12 members in the aerobics group.

4. There are 5 points on line a and 10 points on line b. Any three points on different lines can form a triangle, as long as they are not collinear.

Therefore, the number of triangles that can be formed is C(5,3)C(10,3) = 10120 = 1200.

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Answer:

No.

Step-by-step explanation:

No, the equality ||u + v|| = ||u|| + ||v|| does not hold for all vectors u and v in 3D. This equality is known as the Triangle Inequality, and it states that the length of the sum of two vectors is always less than or equal to the sum of their individual lengths. Hence, ||u + v|| <= ||u|| + ||v||.

Residual Plot A indicates that the linear model is not appropriate because the fanned pattern shows that the model's predicting power decreases as the values of the explanatory variable increases. Residual Plot B indicates that the linear model is appropriate because the scattered residuals suggest a linear relationship.

Residual Plot A shows a fanned pattern which indicates that the linear model is not appropriate. This means that the model's predicting power decreases as the values of the explanatory variable increases. This suggests that the relationship between the dependent and independent variables is not linear and a different model may be necessary. Residual Plot B, on the other hand, shows a scattered pattern which suggests that the linear model is appropriate. The scattered pattern indicates that the data points are randomly distributed, which is a sign of a linear relationship. This indicates that the linear model is an appropriate fit for the data.

the complete question is :

Tell what each of the residual plots to the right indicates about the appropriateness of the linear model that was fit to the data. (a). Choose the best answer for residuals plot A. The fanned pattern indicates that the linear model is not appropriate. The model's predicting power decreases as the values of the explanatory variable increases. B. The fanned pattern indicates that the linear model is not appropriate. C. The model's predicting power increases as the values of the explanatory variable increases. The scattered residuals plot indicates an appropriate linear model. (b). Choose the best answer for residuals plot A. The scattered residuals plot indicates an appropriate linear model. B. The curved pattern in the residuals plot indicates that the linear model is not appropriate. The relationship is not linear. C. The fanned pattern indicates that the linear model is not appropriate. The model's predicting power decreases as the values of the explanatory variable increases.

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The graph of the equation given is mentioned below.

What is plot point in graph ?

Whenever we draw a point on our grid, we'll call it "plotting a point." The grid is really called a "graph" and the points we plot are called "coordinates." These are really locations on a plane -- we're just finding and labeling them.

Equation given,

y = 3/5x - 1    ----eq(i)

y = 2/5x        -----eq(ii)      

Now, for this two equation we infinite points for real numbers.

Now, take some points to plot the graph.

First for the eq(i)

Put x = 0, so y = -1

Put x = 5, so y = 2

Points for eq(i) is (0, -1) and (5, 2)

Now, for eq(ii)

Put x = 0, so y = 0

Put x = 5, so y = 2

Points for eq(ii) is (0, 0) and (5, 2)

Common point is (5, 2)

Now, plot this point on graph.

Hence, for more clarity graph of the equation given is mentioned below.

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The slope of the tangent line at x=3 is greater than the slope of the tangent line at x=-1. The statement is True.

The concept of a tangent was discovered by the ancient Greeks.

A tangent to a curve is a line that touches the curve at a single point and has the same gradient as the curve at that point.

The slope of a tangent line is found using the formula:

y' = lim (h → 0) [f(x+h) – f(x)] / h

where h is a small value that approaches zero.

Therefore, we can conclude that the slope of the tangent line at x=3 is greater than the slope of the tangent line at x=-1.

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We have to find the area of the region between y=x^(1/2) and y=x^(1/3) for 0≤x≤1.

To find the area of the region between y=x^(1/2) and y=x^(1/3) for 0≤x≤1, we have to integrate x^(1/2) and x^(1/3) with respect to x. That is, Area = ∫0¹ [x^(1/2) - x^(1/3)] dx= [2/3 x^(3/2) - 3/4 x^(4/3)] from 0 to 1= [2/3 (1)^(3/2) - 3/4 (1)^(4/3)] - [2/3 (0)^(3/2) - 3/4 (0)^(4/3)]= 0.2857 square units

Therefore, the area of the region between y=x^(1/2) and y=x^(1/3) for 0≤x≤1 is 0.2857 square units. Note: The question  but the answer has been provided in the format requested.

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Answer:

The contractor pays $1831.62 before taxes

Step-by-step explanation:

First, let's write the equation:

(145.98 x 9) + (129.45 x 4) = ?

145.98 multiplied by 9 is 1313.82

1313.82 + (129.45 x 4) = ?

129.45 multiplied by 4 is 517.8

1313.82 + 517.8 =

1831.62

I hope this helps :)

Answer:

1, 2, 4

Step-by-step explanation:

1x4=4

2x2=4

Answer:

1,2,4

Step-by-step explanation:

1 x 4 = 4

2 x 2 = 4

So the factors are 1, 2, 4

Answer:

30 pancakes/6 pancakes = 5, so Sanjay needs to multiply the recipe by 5 (make batches of 6 pancakes 5 times for 30 pancakes in total)

flour: 135g*5=675g

baking powder: 1 tsp*5=5 teaspoons

sugar: 2 tbsps*5=10 tablespoons

milk: 130ml*5=650ml

eggs: 1 egg*5=5 eggs

oil: 2 tbsps*5=10 tablespoons

The chef should use approximately 80 milliliters of the first brand (5% vinegar) and (240 - 80) = 160 milliliters of the second brand (11% vinegar) to make 240 milliliters of dressing that is 9% vinegar.

Let's assume the chef uses x milliliters of the first brand (5% vinegar) and (240 - x) milliliters of the second brand (11% vinegar).

To find the amounts of each brand needed, we can set up an equation based on the vinegar content:

(0.05x + 0.11(240 - x)) / 240 = 0.09

Simplifying the equation:

0.05x + 0.11(240 - x) = 0.09 * 240

0.05x + 26.4 - 0.11x = 21.6

-0.06x = -4.8

x = -4.8 / -0.06

x ≈ 80

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The extra stress for the motion described by Newtonian and Stokes equations can be determined based on the given velocity components \(v_{1}=\frac{2x}{1}\), \(\frac{v_{2} }{2}=\frac{3x}{3}\), \(v_{3}=\frac{4x}{2}\).

In fluid mechanics, the extra stress or viscous stress in a fluid is related to the velocity gradients within the fluid. Newtonian and Stokes's equations are two mathematical models used to describe fluid motion. Newtonian fluid follows Newton's law of viscosity, while Stokes flow refers to the flow of very viscous fluids at low Reynolds numbers.

To determine the complete form of the extra stress for the given velocity components, additional information such as the fluid's viscosity, the governing equations, and the specific problem setup would be required. These details are necessary to derive the equations that relate the velocity gradients to the extra stress components. Without this information, a specific form of the extra stress cannot be determined.

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Answer:

4(4a+5) = 16 a + 20 = True

Step-by-step explanation:

If you go twice as fast, your stopping distance will increase by four times (option C).

This relationship is based on the laws of physics and the principles of motion.

When an object is in motion, its stopping distance is influenced by its initial speed, reaction time, and braking capabilities. The stopping distance consists of two components: the thinking distance (the distance traveled during the reaction time) and the braking distance (the distance needed to bring the object to a complete stop).

According to the laws of physics, the braking distance is directly proportional to the square of the initial speed. This means that if you double your speed, the braking distance will increase by a factor of four. In other words, going twice as fast will require four times the distance to come to a stop.

It is important to note that this relationship assumes other factors, such as road conditions and braking efficiency, remain constant. However, in real-world scenarios, these factors may vary and can affect the stopping distance to some extent.

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The value of the test statistic is 1.177.

What is test statistic?

A test statistic is a numerical summary of sample data that is used in hypothesis testing. It is used to assess the strength of evidence against a null hypothesis by comparing the observed data to what would be expected if the null hypothesis were true.

To find the value of the test statistic, we need to use the formula:

test statistic = (sample statistic - hypothesized parameter) / (standard error of the sample statistic)

In this case, the hypothesized parameter is the standard deviation of pulse rates of adult males, which is stated to be more than 12 bpm. So, we have:

hypothesized parameter: σ > 12 bpm

sample size: n = 141

sample standard deviation: s = 13.4 bpm

To calculate the standard error of the sample standard deviation, we use the formula:

standard error of s = σ / √n

Since we don't know the value of σ, we will use the sample standard deviation s as an estimate for it:

standard error of s = s / √n = 13.4 / √141 = 1.126

Now, we can plug in the values into the formula for the test statistic:

test statistic = (s - σ) / (standard error of s)

= (13.4 - 12) / 1.126

= 1.177

Therefore, the value of the test statistic is 1.177.

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Answer:

Deci (símbolo d) es un prefijo del Sistema Internacional que indica un factor de 10−1 (1/10) o una décima parte.

The number of times that the base unit contains the corresponding prefix deci is 10.

Base units are the units which are used in measurements as the basic ones from which the other units of measurements has been derived.

Some of the common base units are second, meter, kilogram, etc.

We have to find the number of times the base unit contains the corresponding unit with prefix deci.

This means that how many times 1 meter contains decimeter.

This goes for each base units.

We know that,

1 meter = 10 decimeters

Any of the base units is 10 times the corresponding unit with prefix deci.

Hence the number of times that a base unit contains the corresponding unit with prefix deci is 10.

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The question in English is,

How many times does the base unit contain the corresponding prefix deci?