1st statement: In an experimental study we can examine the association between the independent and dependent variable 2nd statement: In an experimental study we can examine the temporal relationship between the independent and dependent variable O Both statements are true 1st statement is false, while the 2nd statement is true o 1st statement is true, while the 2nd statement is false O Both statements are false

Answer:

144 m^2

Step-by-step explanation:

the front side is 9 m tall and 6 m long. The formula for the surface are of triangles is W*L/2, so 9*6=54, 54/2=27. Four sides are the same, so multiply 4 to get 108m. the the faced down part is 6m by 6m, so multiply 6*6 is 36, then add up 36 + 108 = 144m.

Answer:

\( \frac{8}{25 } \)

8/25 m³

Step-by-step explanation:

each cubic is 8/125 m³ because 2/5 * 2/5 * 2/5 = 8/125 m³

and there is 5 cubic in this object 5*8/125 = 8/25 m³

Algebraically, this means that the dependent variable y is a linear function of the independent variable x, with no coefficient multiplying x.

When β₂=0, the regression model simplifies to yᵢ = β₁xᵢ + eᵢ. This means that the dependent variable y is solely determined by the intercept β₁ and the error term e, with no effect from the independent variable x.

This means that the best estimate for β₁, when β₂ = 0, is the mean of the dependent variable y.This is because when β₂ = 0, the value of x does not contribute to the variation in y. The line is parallel to the x-axis and has a constant intercept β₁

.

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Answer:

3 MONTHS

Step-by-step explanation:

PLEASE MARK ME AS BRAINLIEST

Answer:

Step-by-step explanation:

start the line from the 75 going to the 80. thats where you put the line on the thing. and im not sure with the 2nd one look it up or find someone to help u:)

Answer:

there was a total of 954 people at the pool

Step-by-step explanation:

Answer: 246

Step-by-step explanation:

The critical value for a t-test with a 0.05 level of significance in the lower tail only and 24 degrees of freedom is approximately -1.711.

In a t-test, the critical value is the value at which the test statistic must surpass in order to reject the null hypothesis. The critical value depends on the level of significance and the degrees of freedom.

For a lower-tailed t-test with a 0.05 level of significance and 24 degrees of freedom, we consult a t-distribution table or use statistical software to determine the critical value. Looking up the value for 24 degrees of freedom at a significance level of 0.05 in the lower tail, we find the critical value to be approximately -1.711. This means that the test statistic must be less than -1.711 to reject the null hypothesis at the 0.05 level of significance.

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Answer:

Step-by-step explanation:

y - 7                     subtract 7

y - 2 and 1/3       divide by 3

y + 3 and 2/3      add 6

The exponential smoothing forecast for period 5, assuming an alpha (α) value of 0.4, is determined by applying the exponential smoothing formula.

The exponential smoothing formula is given by:

Forecast for period t = α * Actual value for period t + (1 - α) * Forecast for period t-1

In this case, we need the forecast for period 5, so we will use the formula to calculate it based on the available data.

To calculate the exponential smoothing forecast for period 5, we use the given alpha (α) value of 0.4 and the available data for previous periods. The formula considers the actual value for period t and the forecast for the previous period (t-1).

Since we are calculating the forecast for period 5, we need the actual value for period 5 and the forecast for period 4. However, these values are not provided in the given information. Without the actual value for period 5 or the forecast for period 4, it is not possible to provide a specific numerical answer for the exponential smoothing forecast for period 5.

The exponential smoothing technique is commonly used for forecasting, where the alpha (α) value determines the weight given to the most recent observations. A higher alpha value places more weight on recent data, while a lower alpha value gives more weight to historical data. By adjusting the alpha value, the forecast can be adjusted to respond more quickly or more slowly to changes in the data.

To calculate the exponential smoothing forecast for period 5, it is essential to have the necessary data points. With the provided alpha (α) value of 0.4, the formula can be applied once the required data is available.

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Answer:

x=a+b/2

Step-by-step explanation:

1. adding a to both sides

2. dividing both sides by 2

2x-a=b

2x=a+b

x=a+b/2

(not sure if correct but hope it helps!)

1) The lift coefficient for a wing with an aspect ratio of 6.8 at an angle of attack of 10 degrees measured from the attitude at zero lift is 1.02. 2) The lift coefficient CL for a wing with an aspect ratio of 7.6, and placed at an angle of attack = 8.6° for the angle of zero lift is 0.93.

1. The lift-curve slope for infinite aspect ratio is 0.09 per degree.

Assume e =0.85.

The lift coefficient for a wing with an aspect ratio of 6.8 at an angle of attack of 10 degrees measured from the attitude at zero lift is 1.02

Given, The lift-curve slope for infinite aspect ratio = 0.09 per degree

Aspect ratio, AR = 6.8

Angle of attack, α = 10°

Efficiency factor, e = 0.85

Formula used: CL

= (2 * π * AR * α)/(180 + (π * AR * e))CL

= (2 * π * 6.8 * 10°)/(180 + (π * 6.8 * 0.85))CL

= 1.02 (Approx)

Hence, the lift coefficient for a wing with an aspect ratio of 6.8 at an angle of attack of 10 degrees measured from the attitude at zero lift is 1.02.

2. The slope of lift curve for infinite aspect ratio and the Oswald's efficiency given as 0.086 per degree and 0.91, respectively.

The lift coefficient CL for a wing with an aspect ratio of 7.6, and placed at an angle of attack = 8.6° for the angle of zero lift is 0.93

Given, The lift-curve slope for infinite aspect ratio = 0.086 per degree

Oswald efficiency factor, e = 0.91

Aspect ratio, AR = 7.6

Angle of attack for zero lift, α0 = 8.6°

Formula used: CL

= (2π * AR * α)/(180 + π * AR * e) - (α/57.3)CL

= (2π * 7.6 * 0)/(180 + π * 7.6 * 0.91) - (8.6/57.3)CL

= - (8.6/57.3)CL

= - 0.16 + (0.086 * 7.6)CL

= 0.93

Hence, the lift coefficient CL for a wing with an aspect ratio of 7.6, and placed at an angle of attack = 8.6° for the angle of zero lift is 0.93.

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Answer: y = -2/5x +8

Step-by-step explanation:

Answer:

$16.85

Step-by-step explanation:

since Maria is only buying the shirts and shorts you would add how much this shirt is and how much the shorts are and then subtract that by 50

Answer:

13.2 g

Step-by-step explanation:

let x = grams sugar in a 200 ml glass

16.5 g sugar / 250 ml = x g sugar / 200 ml

x(250) = (16.5)(200)

x =  (16.5)(200) / (250) = 3300 / 250 = 13.2

Answer:  there are 13.2 g sugar in a 200 ml glass of juice

Rounding it to the nearest power of 10 we can write it as: 10^11

To round 98,247,836,218 to the nearest power of 10, we can use the following steps:

1. Identify the digit in the billions place (the digit to the left of the comma). In this case, it is 9.

2. Determine if the digit in the billions place is greater than or equal to 5. Since 9 is greater than 5, we will round up.

3. Replace all the digits after the billions place with zeros. The result is 100,000,000,000.

So, when rounded to the nearest power of 10,  98,247,836,218 can be written as the product of a single digit (1) and the power of 10 (10^11).

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Answer:

from the origin of the graph(which is the center) go right 3 then mark a point( should be a little before the number 4, then from the origin again go up to the number 4 and mark another point. then run a line connecting the two dots you made

Step-by-step explanation:

Answer:

C = 57.2

Angle S corresponds to angle C

Both triangles are symmetrical to each other.

Answer:

What is the measure of angle C?

57.2

Which angle corresponds to angle C?

angle S

What can be concluded about the triangles?

The triangles are similar.

Step-by-step explanation:

The value of the exponent (2/5)^3 is \(\frac{8}{125}\)

In the above question, it is given that

(2/5)^3

The number of times a number has been multiplied by itself is referred to as an exponent. For instance, the expression 2 to the third (written as 2^3) signifies 2 x 2 x 2 = 8.

We need to solve it and then find the value of the exponent

(2/5)^3

= \(\frac{2}{5}\) x \(\frac{2}{5}\) x \(\frac{2}{5}\)

= \(\frac{2 . 2. 2}{5 . 5 . 5}\)

= \(\frac{8}{125}\)

Therefore the value of the exponent (2/5)^3 is \(\frac{8}{125}\)

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Answer:

Hey there!

Discrete Data is the number of friends you invited to your last birthday party.

Hope this helps :)

Answer:

a) The number of friends you invited to your last party.

Step-by-step explanation:

Let’s take a step back what is discrete, and what continuous?

Discrete

This is the type of data with certain whole numbers not 2.36 only 2 or 3.

Continuous

This is the data being specific like 1.373.

So a)

The is discrete because you can only have like 5 friends not 7.49 friends.

b)

This is continuous because height can be 5.26 feet.

c)

Time is continuous because there can be 4.3739 minutes.

d)

Weight is also continuous it can be 6339.373 pounds.

Answer:

m<8=m<4=105

m<4=180-(4x-1)

=180-4x+1

105 =-4x+181

4x= 181-105

4x=76

X=19

m<6=180-105

=75

y-31=75

y =75+31

y=106

X+y=19+106

=125

Answer:

6.4166

Step-by-step explanation:

77/12 = 6.41666666667

Answer:

200 meters

Step-by-step explanation:

a² + b² = c²

c² = 120² + 160²

c² = 14,400 + 25,600

c² = 40,000

√(c²) = √(40,000)

c = 200

Answer: 200 meters

Answer:

ur answer is 8.06

Step-by-step explanation:

a² + b²= c²

4² + 7² = c²

16 + 49 = c²

65 sooo u do √65= 8.06

The result from project number 11 suggests that the drug may be effective in reducing the size of pancreatic tumors, but it is not sufficient to conclude definitively that the drug is effective using hypothesis.

The p-value of 0.027 indicates that if there were truly no effect of the drug, the probability of observing a result as extreme as or more extreme than what was observed in project number 11 would be 0.027. This suggests that the result is unlikely to have occurred by chance alone. However, it is possible that the result is a false positive or due to chance variation, especially given that 20 research projects were conducted. It would be important to replicate the result in additional studies and consider the overall body of evidence before concluding definitively that the drug is effective.

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Answer:

-24

Step-by-step explanation:

because of the absolute value bar, it makes it positive, but with the NEGATIVE on the OUTSIDE of the Bars.

Answer:

The statements about arcs and angles that are true in the figure are;

1) ∠EFD ≅ ∠EGD

2) \(\overline{ED}\cong \overline{FD}\)

3) mFD = 120°

Step-by-step explanation:

1) ∠ECD + ∠CEG + ∠CDG + ∠GDE = 360° (Sum of interior angle of a quadrilateral)

∠CEG = ∠CDG = 90° (Given)

∠GDE = 60° (Given)

∴ ∠ECD = 360° - (∠CEG + ∠CDG + ∠GDE)

∠ECD = 360° - (90° + 90° + 60°) = 120°

∠ECD = 2 × ∠EFD (Angle subtended is twice the angle subtended at the circumference)

120° = 2 × ∠EFD

∠EFD = 120°/2 = 60°

∠EFD ≅ ∠EGD

∠ECD = 120°

∠EGD = 60°

∴∠EGD ≠ ∠ECD

2) Given that arc mEF ≅ arc mFD

Therefore, ΔECF and ΔDCF are isosceles triangles having two sides (radii EC and CF in ΔECF and radii EF and CD in ΔDCF

∠ECF = mEF = mFD = ∠DCF (Given)

∴ ΔECF ≅ ΔDCF (Side Angle Side, SAS, rule of congruency)

\(\\ \overline{EF}\cong \overline{FD}\) (Corresponding Parts of Congruent Triangles are Congruent, CPCTC)

∠FED ≅ ∠FDE (base angles of isosceles triangle)

∠FED + ∠FDE + ∠EFD = 180° (sum of interior angles of a triangle)

∠FED + ∠FDE = 180° - ∠EFD = 180° - 60° = 120°

∠FED + ∠FDE = 120° = ∠FED + ∠FED (substitution)

2 × ∠FED  = 120°

∠FED = 120°/2 = 60° = ∠FDE

∴ ∠FED = ∠FDE = ∠EFD =  60°

ΔEFD  is an equilateral triangle as all interior angles are equal

\(\\ \overline{EF}\cong \overline{FD}\cong \overline{ED}\) (definition of equilateral triangle)

\(\overline{ED}\cong \overline{FD}\)

3) Having that ∠EFD = 60° and ∠CFE = ∠CFD (CPCTC)

Where, ∠EFD = ∠CFE + ∠CFD (Angle addition)

60° = ∠CFE + ∠CFD = ∠CFE + ∠CFE (substitution)

60° = 2 × ∠CFE

∠CFE =60°/2 = 30° = ∠CFD

\(\overline{CF}\cong \overline{CD}\) (radii of the same circle)

ΔFCD is an isosceles triangle (definition)

∠CFD ≅ ∠CDF (base angles of isosceles ΔFCD)

∠CFD + ∠CDF + ∠DCF = 180°

∠DCF = 180° - (∠CFD + ∠CDF) = 180° - (30° + 30°) = 120°

mFD = ∠DCF (definition)

mFD = 120°.

Answer:

1,3,5

Step-by-step explanation:

right on edge 2022

Answer:

D

Step-by-step explanation:

-4 is listed twice with 2 different outputs

This is a translation of 2 units to the left and 5 units up, so the correct option is the first one.,

Remember that a vertical translation of N units is:

g(x) = f(x) + N

if N < 0 the translation is down.

if N > 0 the translation is up.

And a horizontal translation of N units is:

g(x) = f(x + N)

If N > 0 the translation is to the right.

if N < 0 the translation is to the left.

Here we have the transformation:

f(x) = x²

g(x) = (x + 2)² + 5

So this is a translation of 2 units to the left and 5 units up.

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