Help this is due tmr!!

Answer:They both Look tangent to me, they both have a straight line

Step-by-step explanation:

For a given sample proportion of 0.5, the sample size that will produce the widest confidence interval is the largest option given, which in this case is 80.

The sample size that will produce the widest 95% confidence interval, given a sample proportion of 0.5, is option b, 80. This is because the width of the confidence interval is directly proportional to the sample size, meaning that as the sample size increases, the confidence interval becomes narrower.

Additionally, the width of the confidence interval is inversely proportional to the square root of the sample size. Therefore, for a given sample proportion of 0.5, the sample size that will produce the widest confidence interval is the largest option given, which in this case is 80.

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The work done over the curve C is W = 13/2. the correct option is C. W = 13.

Given vector field F = 4z_i + 6x_j + 3y_k, find the work done over the curve C in the direction of increasing t.

C: r(t) = ti + tj + tk, 0 ≤ t ≤ 1

To calculate the work done over the curve, we use the formula:

                           W = ∫C F. drwhere F is the vector field and dr is the differential vector along the curve C.

To find dr, we differentiate the given vector function r(t).

                                     r(t) = ti + tj + tk => r'(t) = i + j + k

Now we can calculate the work done as follows:

                                             W = ∫C F. dr

                                               = ∫0¹ F(r(t)). r'(t) dt

                                                = ∫0¹ (4z_i + 6x_j + 3y_k) . (i + j + k) dt

                                               = ∫0¹ (4t_i + 6t_j + 3t_k) . (i + j + k) dt

                                                 = ∫0¹ (4t + 6t + 3t) dt

                                                  = ∫0¹ 13t dt

                                                   = (13/2)t²|0¹

                                                    = (13/2)(1² - 0²)

                                               = 13/2

Therefore, the work done over the curve C is W = 13/2. Hence, the correct option is C. W = 13.

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Answer: 15 is a 25% increase of 12.

Step-by-step explanation: Difference of 12 and 15 = |12 - 15|/((12 + 15)/2) = 3/13.5 = 0.22222222222222 = 22.222222222222%

Answer:

Because it is a right triangle one angle is obviously 90°. The other two are approximately 36.87° and 53.13°.

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Hey there!

The answer is $48.44

We can solve this by first finding how much the discount is.

0.25 x 59.80

14.95

The amount of the discount is 14.95, so we then take the discount off.

59.80 - 14.95

44.85

Then, we find the amount of tax.

.08 x 44.85

3.588 (round to nearest cent = 3.59)

Then, add the price of the tax onto the price of the jeans.

3.59 + 44.85

48.44

Hope this helps! Good luck!

Answer:

the answer will be 15 number D

Answer:

x = 15 (D)

Step-by-step explanation:

First, we distribute the -1/2:

-1/2 x x = -1/2x

-1/2 x 5 = -2.5

Now we have -1/2x + (-2.5) = -10

Move the variables to one side and the regular numbers on the other (in other words, subtracting both sides by -2.5:

-1/2x = -10 + 2.5

-1/2x = -7.5

x = -7.5/(-1/2)

x = 15   (D)

Answer:

C

Step-by-step explanation:

add 9 to each number to next next number in sequence.

39, 48, and 57

Answer:

X-Intercept = (1,0) and (3, 0)

Y-Intercept = (0, 6)

Vertex = (2, -2)

Maximum or Minimum = It is minimum, the vertex is the lowest number.

Axis of Symmetry = x = 2

Zeros = (1, 0) and (3, 0)

Domain = all real numbers

Range = y ≥ -2

step by step

ANSWER:  (2x^2-5x+1) *(4x+3)

((*8 • (x3)) -  (2•7x2)) -  11x) +  3

STEP

2

:

Equation at the end of step

2

:

 ((23x3 -  (2•7x2)) -  11x) +  3

STEP

3

:

Checking for a perfect cube

3.1    8x3-14x2-11x+3  is not a perfect cube

Trying to factor by pulling out :

3.2      Factoring:  8x3-14x2-11x+3

Thoughtfully split the expression at hand into groups, each group having two terms :

Group 1:  -11x+3

Group 2:  8x3-14x2

Pull out from each group separately :

Group 1:   (-11x+3) • (1) = (11x-3) • (-1)

Group 2:   (4x-7) • (2x2)

Answer:

24 and 41 inches.

Step-by-step explanation:

Let the lengths of the two pieces be a and b.

The total length of the two-piece should be the length of the original board.

Therefore:

a + b = 65

One piece, say b, is 7 inches shorter than twice the length of the other, a.

Therefore, we can write the following equation:

b = 2a - 7

The “2a” represents the twice, and the “-7” represents the 7 shorter inches.

We now have a system of equations:

a + b = 65

b = 2a - 7

We can solve using substitution. Substitute the second equation with the first. Hence:

a + (2a - 7) = 65

Combine like terms:

3a - 7 = 65

Add 7 to both sides:

3a = 72

Divide both sides by 3:

a = 24

So, the shorter piece is 24 inches.

Then, we can use our second equation again:

b = 2a - 7

Since we now know a substitute 24 for a and evaluate. Hence:

b = 2(24) - 7

  = 48 - 7

  = 41

Therefore, the length of the other two pieces is 24 and 41 inches.

Answer:

X = 19

2 * 19 = 38 degrees

3 * 19 - 5 = 52 degrees

Step-by-step explanation:

3x-5+2x = 90

5x = 90+5

X = 95/5

X = 19

When the system contains contradictory equations, there will be no solution to the system.

When answering questions, a question answering bot on the platform Brainly should always be factually accurate, professional, and friendly; be concise and do not provide extraneous amounts of detail; provide a step-by-step explanation in the answer. In the question given, we are exploring whether the number of variables and the number of equations have any bearing on the consistency of a system of linear equations.In a consistent linear system, there exist solutions that satisfy all the equations while in an inconsistent linear system there are no solutions that satisfy all the equations. A system of linear equations can be described as underdetermined when the number of equations is less than the number of variables. The solution of underdetermined linear system has infinite possible solutions. On the other hand, a system of linear equations can be described as overdetermined when the number of equations is greater than the number of variables. The overdetermined linear system may have no solution or a unique solution. The reason for this is that having too many equations than variables will create a contradiction in the solution to that system.Can you find a consistent underdetermined linear system?Yes, we can find a consistent underdetermined linear system. For instance, the linear system below is a consistent underdetermined linear system; 2x - y = 3The solution to this linear system has infinitely many solutions. This is because there are more variables than equations in the system.Can you find a consistent overdetermined linear system?Yes, we can find a consistent overdetermined linear system. For instance, the linear system below is a consistent overdetermined linear system; x + y = 5 2x + y = 8The solution to this linear system is x = 2 and y = 3. This is because the linear system contains two equations and two variables that are consistent with one another.Can you find an inconsistent underdetermined linear system?Yes, we can find an inconsistent underdetermined linear system. For instance, the linear system below is an inconsistent underdetermined linear system; x - y = 4 2x - 2y = 6The system above has no solution. This is because there are fewer equations than variables in the system.Can you find an inconsistent overdetermined linear system?Yes, we can find an inconsistent overdetermined linear system. For instance, the linear system below is an inconsistent overdetermined linear system; x + y = 5 2x + 2y = 6The system above has no solution. This is because the number of equations is greater than the number of variables in the system.Explain why you would expect an overdetermined linear system to be inconsistentAn overdetermined linear system contains more equations than variables, and thus it is impossible for every equation to be satisfied. Therefore, the system is likely to have no solution or a contradiction in the solution.Must this always be the case?It is not always the case that an overdetermined linear system will always be inconsistent. In the case where the equations are linearly dependent, a solution may exist.Explain why you would expect an underdetermined linear system to have an infinite number of solutionsAn underdetermined linear system contains fewer equations than variables, and thus it is impossible to uniquely determine the values of the variables. Therefore, the solution of an underdetermined linear system has infinite possible solutions.Must this always be the case?No, it is not always the case that an underdetermined linear system will have infinite solutions. When the system contains contradictory equations, there will be no solution to the system.

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she started jumping rope at 7:45

-25 is an integer and a rational number.

Now,

Hence, -25 is an integer and a rational number.

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Change in base of right angled triangle is - 1.5cm/minute

The rate of change in area is defined as the change in with respect to time.

dA/dt = 1/2(BdH/dt + HdB/dt)

where A is area, B is base, H is height

A = 1/2×B×H

94 = 1/2×11.5×B

⇒ B = 94×2/11.5 = 16.3cm

Rate of change in base,

dA/dt = 1/2(BdH/dt + HdB/dt)

3.5 = 1/2(16.3×1.5 + 11.5×dB/dt)

dB/dt = 7-24.45/11.5 = -1.5 cm/minute

Thus,base of triangle is decreasing by 1.5cm/minute.

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Imagine that a survey of randomly selected people finds that people who used sunscreen were more likely to have been sunburned in the past year.

There are several possible explanations for the finding that people who used sunscreen were more likely to have been sunburned in the past year.

However, without additional context or data, it is difficult to determine the most likely explanation definitively. Here are a few possible explanations to consider:

1. Ineffective or improper use of sunscreen: It is possible that the individuals who reported using sunscreen did not apply it correctly or did not reapply it as recommended.

Inadequate application or failure to follow proper sunscreen usage guidelines could result in insufficient protection from the sun's harmful rays, leading to sunburn.

2. Self-selection bias: It is possible that individuals who have previously experienced sunburns may be more likely to use sunscreen. They may be more aware of the potential risks and take precautions, including using sunscreen.

This could create an association between sunscreen use and sunburn, even though sunscreen itself is intended to prevent sunburn.

3. Recall bias: The survey responses may be subject to recall bias, where individuals may inaccurately remember or report their sunscreen use and sunburn experiences.

Memory limitations or subjective perceptions of sunburn severity could influence the reported data and the observed association between sunscreen use and sunburn.

4. Confounding factors: There may be other factors or variables at play that are related to both sunscreen use and sunburn. For example, individuals who engage in activities that increase sun exposure or who have certain skin types may be more likely to both use sunscreen and experience sunburn.

It is important to note that further investigation, including more detailed surveys, data collection and statistical analysis, would be necessary to determine the most likely explanation for the observed association between sunscreen use and sunburn.

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Answer:

i think G sorry if its wrong

Step-by-step explanation:

Answer:

31

Step-by-step explanation:

a=(180-121)=59

c=(180-90)=90

180-59-90=31

Given:

There are given that the MN is the midsegment of the trapezoid ABCD.

Explanation:

According to the question:

We need to find the value of segment AB:

So,

From the formula of a segment of midpoint:

Then,

Put the value of the segment of MN and CD:

So,

Then,

Final answer:

Hence, the correct option is A.

ුැේෞඈචොමටඉපගපයිිඅඅේෛෛඑටමවවඈ

The time it takes for a P100,000 deposit to triple itself at a compound interest rate of 6.1% compounded weekly is approximately 6.12 years.

To find the time it takes for a P100,000 deposit to triple itself at a compound interest rate of 6.1% compounded weekly, we can use the formula for compound interest:

A = P(1 + r/n)^(nt)

Where:

A = Final amount (triple the initial deposit)

P = Principal amount (initial deposit)

r = Annual interest rate (6.1% or 0.061 as a decimal)

n = Number of times interest is compounded per year (weekly compounding means n = 52)

t = Time in years

In this case, we have:

A = 3P (triple the initial deposit)

P = P100,000

r = 0.061

n = 52

t = Time (unknown)

Substituting these values into the formula, we have:

3P = P(1 + r/n)^(nt)

Simplifying further, we get:

3 = (1 + 0.061/52)^(52t)

To isolate t, we can take the natural logarithm (ln) of both sides of the equation:

ln(3) = ln((1 + 0.061/52)^(52t))

Using the logarithmic property, we can bring down the exponent:

ln(3) = 52t * ln(1 + 0.061/52)

Now we can solve for t:

t = ln(3) / (52 * ln(1 + 0.061/52))

Using a calculator, the value of t comes out to approximately 6.12 years (rounded to two decimal places).

Therefore, the time it takes for a P100,000 deposit to triple itself at a compound interest rate of 6.1% compounded weekly is approximately 6.12 years.

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7/10 would be friends with

2/10 would date

10/10 would call you out for using virtual/photoshopped backgrounds  

Answer:

NOICE

Step-by-step explanation:

Look nice cuh you my homie ig

Answer:

a)True

b)True

c) False

d) True

e)True

f) True

Answer:

c/-9+6=14

c/-9=14-6

c/-9=8

c=8×(-9)

c= -72

Therefore the answer is (b)

The number of hours of use at which it is more economical to pay the single fee for the day is 4 hours.

Let's represent the number of hours of use as 'h'. The cost of renting the equipment for the day is $35. The cost of renting it at an hourly rate is $20 + $4h. To determine when it is more economical to pay the single fee for the day, we set up the inequality:

$35 < $20 + $4h

Simplifying the inequality, we have:

$15 < $4h

Dividing both sides by $4, we get:

3.75 < h

Since the number of hours must be a whole number, the nearest hour at which it is more economical to pay the single fee for the day is 4 hours. Therefore, if Paul plans to use the equipment for 4 hours or more, it is more cost-effective for him to pay the single fee for the day.

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Answer:For random variable X~N(3,0.75), what is the probability that X takes on a value within two standard deviations on either side of the mean?

Step-by-step explanation:

Answer:

for the question x is 2 and y is 4

Step by step:

The equation of the line through \((1,2)\) which make equal intercepts on the axis \(x+y=3\)

The equation of the line through (1,2) makes an equal intercept on the axis

The formula of the intercept form is

\(\frac{x}{a} +\frac{y}{b} =1\)

If they make an equal intercept

\(a=b\\\frac{x}{a} +\frac{y}{a} =1\\x+y=a\)

Put the value of the point in the axis, and we get.

\(1+2=a\\a=3\)

Put the value in the equation, and we get.

\(x+y=3\)

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