Can someone pls help me!!

A. 5 inches
B. 16 inches
C. 13 inches
D. 19 inches

Answer:

A. -2

Step-by-step explanation:

-25p - 2 = 48

First, add 2 to both sides

That gives you

-25p = 50

Then, divide both sides by -25. Then that leaves the answer.. p = -2

The coefficients obtained by the student may be less efficient and have larger standard errors compared to the professor's regression.

If the student enters each observation twice, resulting in a sample size of 100 instead of the original 50, the assumption of independent observations is violated in Ordinary Least Squares (OLS) regression. The OLS assumption assumes that the observations are independent, meaning that the value of one observation does not depend on the value of another observation.

In this case, the student's dataset contains repeated observations, which introduces dependence between observations. This violation of the independence assumption can lead to biased and inconsistent parameter estimates in the regression analysis.

Regarding the slope coefficients, if the student runs a regression using the duplicated data, the estimated coefficients may be different from the professor's regression. The duplication of observations inflates the sample size, potentially affecting the precision and accuracy of the estimates.

However, the direction and overall relationship between the variables may still be captured by the student's regression, although the estimates may not be as reliable.

learn more about coefficients here

https://brainly.com/question/1594145

#SPJ11

Answer:

The answer is 35.

Step-by-step explanation:

7 x 4 = 28

7 x 5 = 35

7 x 6 = 42

Answer:

35

Step-by-step explanation:

To find it, we can use the formula: distance = |d1 - d2| / √(A^2 + B^2 + C^2), where d1 and d2 are the distances from the origin to each plane, and A, B, and C are the coefficients of the normal vector of the planes.

The given equations of the planes are 3x - 5y + z = 12 and 6x - 10y + 2z = 1. By comparing the coefficients of x, y, and z, we can determine the normal vectors of the planes as (3, -5, 1) and (6, -10, 2), respectively.

The distances from the origin to each plane can be calculated by substituting (0, 0, 0) into the plane equations. The distance for the first plane is |12| / √(3^2 + (-5)^2 + 1^2) = 12 / √35, and the distance for the second plane is |1| / √(6^2 + (-10)^2 + 2^2) = 1 / √140.

Finally, we can find the distance between the two planes by evaluating |12 / √35 - 1 / √140|.

To know more about parallel planes click here : brainly.com/question/16835906

#SPJ11

None of the statements are true for the given angle θ = 2π/3.

For the given angle θ = 2π/3, let's evaluate the statements:

1. cos(theta) = √3/2

To determine if this statement is true, we can calculate the cosine of θ:

cos(2π/3) = -1/2

The statement cos(theta) = √3/2 is not true for θ = 2π/3.

2. The measure of the reference angle is 30°.

The reference angle is the positive acute angle between the terminal side of the angle and the x-axis. Since the given angle θ = 2π/3 is in the second quadrant, the reference angle cannot be 30°.

3. The measure of the reference angle is 45°.

Similar to the previous statement, since θ = 2π/3 is in the second quadrant, the reference angle cannot be 45°.

4. The measure of the reference angle is 60°.

Again, considering the quadrant of θ = 2π/3, the reference angle cannot be 60°.

5. tan(theta) = -√3

To verify this statement, we can calculate the tangent of θ:

tan(2π/3) = √3

The statement tan(theta) = -√3 is not true for θ = 2π/3.

In summary, none of the statements are true for the given angle θ = 2π/3.

Learn more about acute angle here:

https://brainly.com/question/16775975

#SPJ11

Answer:

The linear function is given by z= log(20) +2y + x, where z=log(Q), y= log(L) and x=log(K).

Explanation:

we have given  Q=f(L, K)=20 L^{2} K^{1}

Taking logarithms on both sides,

                 log(Q) = log(20) + 2log(L) + log(K)

let z=log(Q), y= log(L) and x=log(K)

we obtain

                 z= log(20) +2y + x

There would be approximately 43,149 U.S. half dollars in a stack that is the same height as the Statue of Liberty.

To determine the number of U.S. half dollars that would be in a stack the same height as the Statue of Liberty, we need to convert the height of the statue from feet to millimeters and then divide it by the thickness of a single half dollar.

First, let's convert the height of the Statue of Liberty from feet to millimeters. We know that 1 foot is equal to 304.8 millimeters (rounded to the nearest tenth). Therefore, the height of the Statue of Liberty in millimeters is:

305 ft * 304.8 mm/ft = 92918 mm (rounded to the nearest whole number)

Next, we need to determine the thickness of a U.S. half dollar. Given that each half dollar is 2.15 mm thick, we can now calculate the number of half dollars in a stack that is the same height as the Statue of Liberty:

Number of half dollars = Height of stack / Thickness of a half dollar

Number of half dollars = 92918 mm / 2.15 mm

Number of half dollars ≈ 43149 (rounded to the nearest whole number)

Therefore, there would be approximately 43,149 U.S. half dollars in a stack that is the same height as the Statue of Liberty.

For more questions on Statue .

https://brainly.com/question/14387124

#SPJ8

Answer:

first 4 options..

. mark me the Brainliest.. pls

Answer:

$3h

Step-by-step explanation:

w=$44+$12h

w=$35+$15h

$44+$12h=$35+$15h

         -12              -12

$44=$35+$3h

-35    -35

$9=3h

/3   /3

$3=h

Dwayne will need to run the final 100 meters in  11.54 seconds. The  meters the team members run per second is 8.195 meters/second.

a. To break the school record of 48.92 seconds, the team needs to complete the relay race in less than 48.92 seconds.

The total time for Chris, Kiona, and Seiko is 12.35 + 13.12 + 11.91 = 37.38 seconds.

Therefore, Dwayne will need to run the final 100 meters in 48.92 - 37.38 = 11.54 seconds.

b. The total time for the team to run 400 meters is 47.65 seconds. Therefore, the average time per meter is:

47.65 seconds / 400 meters = 0.1191 seconds/meter

Therefore, on average, each team member ran:

Chris: 100 meters / 12.35 seconds = 8.09 meters/second

Kiona: 100 meters / 13.12 seconds = 7.63 meters/second

Seiko: 100 meters / 11.91 seconds = 8.39 meters/second

Dwayne: 100 meters / 11.54 seconds = 8.67 meters/second

The average of these values is:

(8.09 + 7.63 + 8.39 + 8.67) / 4 = 8.195 meters/second

c. On average, each team member took the following time to run 100 meters:

Chris: 12.35 seconds

Kiona: 13.12 seconds

Seiko: 11.91 seconds

Dwayne: 11.54 seconds

Learn more about measurements at: https://brainly.com/question/27233632

#SPJ1

Part (i)

I'll use H in place of T to represent the heat of the object. That way there isn't a clash of variables lowercase t vs uppercase T.

The equation we're working with is updated to:

H(t) = 22 + a*2^(bt)

Plugging in t = 0 as the initial time value should lead to the temperature being H = 86 degrees Celsius.

So,

H(t) = 22 + a*2^(bt)

86 = 22 + a*2^(b*0)

86 = 22 + a*2^0

86 = 22 + a*1

86 = 22 + a

a+22 = 86

a = 86-22

a = 64

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

Part (ii)

We'll use the value of 'a' we found earlier. Plus we'll use the fact that H = 28 when t = 0.5 (since 30 min = 30/60 = 0.5 hr).

H(t) = 22 + a*2^(bt)

28 = 22 + 64*2^(b*0.5)

28-22 = 64*2^(0.5b)

64*2^(0.5b) = 6

2^6*2^(0.5b) = 6

2^(6+0.5b) = 6

log(  2^(6+0.5b)   ) = log(6)

(6+0.5b)*log(2) = log(6)

6+0.5b = log(6)/log(2)

6+0.5b = 2.5849625

0.5b = 2.5849625-6

0.5b = -3.4150375

b = -3.4150375/(0.5)

b = -6.830075

The measure of angle x is 70°.

Here we have the image of some triangles, and we want to find the value of the interior angle x in the left triangle.

What you need to remember here is that the sum of the interior angles of any triangle is always equal to 180°.

Then, for the left triangle, we can write:

30° + 80° + x° = 180°

Now we can solve that equation for x, then we will get:

x° = 180° - 80° - 30°

x = 70°

That is the measure of angle x.

Learn more about interior angles at:

https://brainly.com/question/24966296

#SPJ1

The correct answer is

H₀ : μh - μc = 0

H₀ : μh - μc ≠ 0

Given that,

Regarding the subsequent 3 inquiries: A study collected information on how much time 28 randomly chosen high school students and 31 randomly chosen college students spent each day on their cellphones. The researcher is interested in learning whether there is proof that students use their phones for varying amounts of time in high school and college.

Because the samples of college and high school students are independent, the independent samples t-test should be utilized.

The study's research (Claim) aims to ascertain whether students' cell phone usage patterns alter between high school and college.

For the independent samples t-test and the stated claim, the proper null and alternate hypotheses are,

H₀ : μh - μc = 0

H₀ : μh - μc ≠ 0

To learn more about hypotheses click here:

brainly.com/question/18064632

#SPJ4

The proper null and alternative hypotheses are

\(H_{0}\) : μh = μc

\(H_{A}\) : μh - μc

The study's research wants to ascertain whether difference between the time spent by high school students and college students.

The actual test begins by considering two hypothesis i.e. null hypothesis and alternative hypothesis.

Let, H= time spent on the phone by high school students;

C= Time spent on the phone by college students; and

d=H−C

For the independent samples t-test and the stated claim, the proper null and alternate hypotheses are,

\(H_{0} :\) μh = μc  (time spent by high school students is equal to college students)

\(H_{A} :\) μh - μc  (difference between the time spent by high school students and college students)

To learn more about hypotheses click here:

brainly.com/question/18064632

#AAA

To calculate the energy of the resulting explosion when a 10,000 kg UFO made of antimatter crashes with a 40,000 kg plane made of matter, we can use Einstein's famous equation, E=mc², which relates energy (E) to mass (m) and the speed of light (c).

In this case, we'll need to calculate the total mass of matter and antimatter involved in the collision and then use the equation to find the energy released. The equation E=mc² states that energy is equal to the mass multiplied by the square of the speed of light (c). In this scenario, we have a collision between a UFO made of antimatter and a plane made of matter. Antimatter and matter annihilate each other when they come into contact, resulting in a release of energy.

To calculate the energy of the resulting explosion, we need to determine the total mass involved in the collision. The total mass can be calculated by adding the masses of the UFO and the plane together. In this case, the UFO has a mass of 10,000 kg and the plane has a mass of 40,000 kg, so the total mass is 50,000 kg.

Next, we can use the equation E=mc² to calculate the energy. The speed of light (c) is a constant value, approximately 3 x 10^8 meters per second. Plugging in the values, we have E = (50,000 kg) x (3 x 10^8 m/s)². Simplifying the equation, we have E = 50,000 kg x 9 x 10^16 m²/s².Multiplying the numbers, we get E = 4.5 x 10^21 joules. Therefore, the energy of the resulting explosion when the UFO and plane collide is approximately 4.5 x 10^21 joules.

Learn more about UFOs here:- brainly.com/question/22862215

#SPJ11

Check the picture below.

on 8), both angles are inscribed in the circle, and both are intercepting the same arc, thus they must be the same angle value.

on 9), the inscribed angle theorem refers to the angle of the intercepted arc, and the arc gets its angle value from the central angle, on this case, the central angle for the red arc is 64°, so the inscribed angle intercepting it, must be half that.

Answer:

m<CAG = 54

m<GAF = 56

m<FAE = 34

m<EAD = 36

m<DAB = 110

m<CAB = 70

Step-by-step explanation:

4x + m<FAE = 90

m<FAE + 36 = 5x

5x - m<FAE = 36

4x + m<FAE = 90

9x = 126

x = 14

5x + 4x + m<CAG = 180

9x + m<CAG = 180

9(14) + m<CAG = 180

m<CAG = 54

m<GAF = 4x

m<GAF = 4(14)

m<GAF = 56

4x + m<FAE = 90

4(14) + m<FAE = 90

m<FAE = 34

m<EAD = 36

m<DAB + 5x = 180

m<DAB + 5(14) = 180

m<DAB = 110

m<CAB = 5x

m<CAB = 5(14)

m<CAB = 70

We have two triangles. One is the dilated image, with a scale factor of 3, of the other triangle.

The angles of the dilated triangles stay the same, that is, they have the same measure.

The sides increase their length by a factor of 3.

Then, if we calculate the area, we will have:

Then, the area of the dilated triangle is 3^2=9 times the are of the pre-image triangle.

Answer: 1) The area of the image is nine times the area of the original triangle.

SOLUTION

Consider the given coordinates

Since the angle given is negative, we move in the clockwise direction

Henece

Moving in the clockwise direction, the angle 315 falls in the first quadrant.

Then, -3 will be to move to the third quadrant,

hence the right option will be

The equation used to find the distance of the flowerbed from the hive is called the "time equation".

The flowerbed is 900 feet far from the hive.

Find the traveling time

The bee spends 12 minutes hunting down the nectar in the flowerbed. Since it was away from the hive for a total of 16 minutes, the traveling time is

16min - 12min = 4 min

Convert the Minutes to seconds

1 minute = 60 seconds

4 minutes = 4*60 = 240 seconds

Find the time each way

The total time is 240 seconds, but it is not divided evenly.

Let the time there = t

Let the time back = 240 - t

The distances are the same

r = 10 m/s

r1 = 6 m/s

t1 = t

t2 = 240 - t

dthere = dback

d = rate * time

10 m/s *t = 6 m/s (240 - t)      

Remove the brackets on the right.

10 * t = 6*240 - 6t                

Combine the like terms on the right.

10t = 1440 - 6t                        

Add 4t to both sides

10t + 6t = 1440 - 6t + 6t          

Combine

16t = 1440                            

Divide both sides by 16

16t/16 = 1440/16                    

Do the division

t = 90                                    

Find the height

d = ?

r = 10 m/s

t = 90 second

d = r*t

d = 10 * 90 = 900 feet

The flowerbed is 900 feet far from the hive.

To learn more about time equation, refer:

https://brainly.com/question/26046491

#SPJ4

The complete question is:

A babe flies at 10 feet per second directly to a flowerbed from its hive. the bee stays at the flowerbed for 12 minutes and then flies directly back to the hive at 6 feet per second. It is away from the hive for a total of 16 minutes.

What equation can you use to find the distance of the flowerbed from the hive?

Answer:

its A -0.75

Step-by-step explanation:

Answer:

its A

Step-by-step explanation:

i got it right on edge unit review

Answer:

MN = 3

Step-by-step explanation:

The following are congruent to each other as each pair are tangents of a circle drawn from the same external point:

PQ = QJ = 1

JK = KL = 4 - 1 = 3

MN = ML

Thus, ML = KM - KL

ML = 6 - 3 = 3

Therefore, MN = ML = 3 (both are tangents drawn from the same external point, M.

this picture would help you man stay strong

Answer:

  75

Step-by-step explanation:

You want the value of y² +4y -2 when y=7.

Put the value where the variable is and do the arithmetic.

  7² +4·7 -2

  = 49 +28 -2

  = 77 -2

  = 75

The value of the expression is 75.

__

Additional comment

It is often easier to evaluate a polynomial when it is written in Horner form:

  (y +4)·y -2

  = (7 +4)·7 -2 = 11·7 -2 = 77 -2 = 75

<95141404393>

Answer:

AD and BC are congruent, so if AD = 20 then BC = 20

AB and DC are also congruent, so if AB = 13 then DC = 13

DE is one half of DB, so if DB = 22 then DE = 11

AE is one half of AC, so if AE = 18 then AC = 36

Also for the one in the corner...

The 2 angles are also congruent, so if ADC = 115° then ABC = 115°

Hope this helps! :)

1. find equation of line with given data :

b) from the given table, we get y - intercept (c) = -4

now let's find slope (m) :

so, the required equation will be :

c) from the given graph we can see that y - intercept (c) = 3

now, let's find the slope (m) :

the equation will be :

d) From this graph we get y - intercept (c) = -4

slope :

so, required equation will be :

After 15 more years of contributions of $4,000 at the end of each quarter, the retirement account will be worth approximately $760,514.47.

To calculate this, we need to use the formula for the future value of a lump sum. A lump sum is a one-time payment made at the beginning or end of a specific period. In this case, we're looking at the future value of the retirement account after 15 more years of contributions.

Using the given information, we can plug in the values and solve for FV:

PV = $150,000

Pmt = $4,000

r = 10%

n = 4 (since interest is compounded quarterly)

t = 15 years

First, we need to calculate the future value of the current investment of $150,000:

FV1 = $150,000 x (1 + 0.1/4)⁴ ˣ ¹⁵ = $548,534.24

Then, we can calculate the future value of the quarterly contributions of $4,000 over 15 years:

FV2 = $4,000 x [(1 + 0.1/4)⁶⁰ - 1] / (0.1/4) = $211,980.23

Finally, we can add FV1 and FV2 to get the total future value of the retirement account after 15 more years:

Total FV = FV1 + FV2 = $548,534.24 + $211,980.23 = $760,514.47

To know more about retirement here

https://brainly.com/question/20751552

#SPJ4

Answer:When rotating a point 90 degrees counterclockwise about the origin our point A(x,y) becomes A'(-y,x). In other words, switch x and y and make y negative.

Step-by-step explanation: trust me