I need help with this

Answer: D

Step-by-step explanation:

I got it wrong twice and it said the answer was D

Answer:

The answer is D!

Step-by-step explanation:

You'd have to write equations for the price per month for each club.

Let x equal the number of months of membership, and y equal the total cost.

Club A's is y = 21x + 12 and Club B's is  y = 20x + 16

Because we know that the prices, y, would be equal, we can set the two equations equal to each other.

21x + 12 = 20x + 16

Subtract 12 from both sides

21x = 20x + 4

Subtract  20x from both sides

x = 4

After four months, the total cost would be the same.

Now for the total cost just place in 4 for X

Club A - y = 21x + 12

y = 21(4) + 12

y = 84 + 12

y = 96

Club B - y = 20x + 16

y = 20(4)+ 16

y = 80 + 16

y = 96

Answer:

Below

Step-by-step explanation:

Losing 27 % of value each year means it retains 73% each year

  we need to multiply 20 000 x  .73 x .73 x .73     ....  .73     (twelve times )

                  or   re-written as   20 000 * .73^12 = value =$ 458.04

Answer:

yw

Step-by-step explanation:

i dont get it

Answer:

Samantha and Henry are would need to plant 15 tulips and 9 daises.

or 3 sets.

Answer:

what I dont understand

Step-by-step explanation:

dgsvwhgshbsokakaa

The slope of the tangent line to the polar curve r = 2 - sin(θ) at the point specified by θ = π/3 is -1/2.

To find the slope of the tangent line to the polar curve r = 2 - sin(θ) at the point specified by θ = π/3, we need to first find the derivative of r with respect to θ, and then evaluate it at θ = π/3.

Differentiating both sides of the polar equation with respect to θ, we get:

dr/dθ = d/dθ(2 - sinθ)

dr/dθ = -cosθ

So, the derivative of r with respect to θ is -cosθ.

Evaluating this derivative at θ = π/3, we get:

dr/dθ|θ=π/3 = -cos(π/3) = -1/2

Therefore, the slope of the tangent line to the polar curve r = 2 - sin(θ) at the point specified by θ = π/3 is -1/2.

Learn more about polar curve here:

https://brainly.com/question/28976035

#SPJ11

The given equation represents a quadratic function in the form y = ax^2, where a = -0.0012.

To find the height of the arch, we need to find the maximum point of the quadratic function. The maximum point occurs at the vertex of the parabola, which can be found using the formula x = -b/(2a). In this case, b = 0 and a = -0.0012, so x = 0. Substituting x = 0 into the equation y = -0.0012x^2, we find y = 0. Therefore, the height of the arch is 0 feet. Since the width of the arch is not specified in the given equation, we cannot determine the width based on the given information.

learn more about:- eight and width  here

https://brainly.com/question/32538798

#SPJ11

Answer:

7.5 is the answer. You have to move the decimal 2 places to the right.

Step-by-step explanation:

otherwise i.d.k

The mean is 65.0646 and standard deviation is 39.082 when we can see the complete form of the table in the picture.

Given that,

As seen in the spreadsheet file P05 63.xlsx, two gamblers engage in a game of wheel-based roulette. Each gambler lays four bets, but each uses a different strategy, as will be seen later. Use the probabilities to determine the distribution of each gambler's net earnings after four bets. Then calculate their net wins' mean and standard deviation. You can get going with the file.

We have to find the mean and standard deviation.

We know that,

In the picture we can see the complete table.

Here, we calculated probability as,

For example take a first row

P(red=4, black=0, green=0) = (18/37)⁴ + 0 + 0 = 0.056

So the mean is 65.0646 and standard deviation is 39.082.

Therefore, The mean is 65.0646 and standard deviation is 39.082 when we can see the complete form of the table in the picture.

To learn more about deviation visit: https://brainly.com/question/12402189

#SPJ4

The total number of choices are 15 for a 5-digit number using 1, 2, 3, 7, 6  digits where, repetition of digits is not allowed

In the above question, it is given that

A 5-digit number has to be created using 1, 2, 3, 7, 6  digits where, repetition of digits is not allowed

So, let's consider the  5-digit number as _ _ _ _ _

We'll fill those five blank spaces in order to generate a 5-digit number

The first blank can have any number out of given 5 numbers = Total number of choice for first blank = 5

The second blank can have 4 number out of given 5 numbers as one is already filled in the first blank= Total number of choice for first blank = 4

The third blank can have 4 number out of given 5 numbers as one is already filled in the first blank and second= Total number of choice for first blank = 3

The fourth blank can have 2 number out of given 5 numbers as one is already filled in the first, second, third = Total number of choice for fourth blank = 2

The fifth blank can have 1 number out of given 5 numbers as one is already filled in the first, second, third and fourth = Total number of choice for fifth blank = 1

Therefore, the total number of choices are 5 + 4 + 3+ 2+1 = 15

Hence,  the total number of choices are 15 for a 5-digit number using 1, 2, 3, 7, 6  digits where, repetition of digits is not allowed

To learn more about, numbers here

https://brainly.com/question/17429689

#SPJ1

Answer:

2714.34 in³ (nearest hundredth)

Step-by-step explanation:

A) Cone and hemisphere

B) volume of a cone = \(\dfrac13\pi r^2h\)

volume of a hemisphere = \(\dfrac23\pi r^3\)

(where r is the radius and h is the height)

C)

\(\implies \textsf{volume of cone}=\dfrac13\pi \times 9^2\times 14=378 \pi\)

\(\implies \textsf{volume of hemisphere}=\dfrac23\pi \times 9^3=486 \pi\)

\(\implies \textsf{total volume}=378 \pi+486 \pi=864\pi =2714.34 \textsf{ in}^3 \textsf{ (nearest hundredth)}\)

Answer:

True

Step-by-step explanation:

True.

Not all variables retained in a regression model need to be statistically significant at a given level of significance (e.g., 5% level). The inclusion of variables in a regression model can be based on theoretical or practical considerations, and not solely on statistical significance. Moreover, some variables may have an important effect on the dependent variable even if they are not statistically significant in the model. However, it is important to assess the overall fit and predictive power of the model, and to consider alternative models and variable transformations if necessary.

Answer:

792600

Step-by-step explanation:

For this question you can add four zeroes to the back of 792.6 andmove the decimal to get you the answer, hope this helps

It's also good to know that if the exponent was positive the answer would be 0.07926

SOLUTION STEPS

10 ^−4/792.6

​

Calculate 10 to the power of −4 and get  

10000

1

​

.

10000

1

​

792.6

​

Divide 792.6 by  

10000

1

​

 by multiplying 792.6 by the reciprocal of  

10000

1

​

.

792.6×10000

Multiply 792.6 and 10000 to get 7926000.

7926000

hopefully i helped

Two positive angles that have a sum of π/2 radians are complementary angles, whereas two positive angles that have a sum of π radians are supplementary angles.

Complementary angles are two angles whose measures add up to a right angle, which is equal to π/2 radians or 90 degrees. In other words, if α and β are complementary angles, then α + β = π/2.

Supplementary angles, on the other hand, are two angles whose measures add up to a straight angle, which is equal to π radians or 180 degrees. If α and β are supplementary angles, then α + β = π.

Learn more about  supplementary angles. here:

brainly.com/question/18362240

#SPJ11

The dim Nul A refers to the dimension of the null space of the matrix A, which is the number of free variables in the matrix.  dim Nul A = 6, and Col A ≠ R^2. The correct answer is B: No, because Col A is a subspace of R^7.

The rank-nullity theorem states that:
rank(A) + dim Nul A = number of columns in A
Given that matrix A is a 7x8 matrix with two pivot columns, we can calculate the dimension of its null space as follows:
1. Determine the rank of matrix A: Since there are two pivot columns, the rank of matrix A (rank A) is 2.
2. Apply the rank-nullity theorem: rank(A) + dim Nul A = number of columns in A
  In this case, 2 + dim Nul A = 8.
3. Solve for dim Nul A: dim Nul A = 8 - 2 = 6.
So, dim Nul A = 6.
To determine if Col A is equal to R^2, we need to consider the dimension of the column space of matrix A. The dimension of the column space is equal to the rank of matrix A:
dim Col A = rank A = 2.
However, Col A is a subspace of R^7 because the matrix A has 7 rows. Therefore, Col A cannot be equal to R^2, which is a subspace of R^2.

For more questions on matrix

https://brainly.com/question/1279486

#SPJ11

Answer:

um.. I would say .......

Answer: i think its -1 im not sure tho

Step-by-step explanation:

Answer:

B. The Dress Shop.

Step-by-step explanation:

To find the best deal, we want to find the cost for one dress.

Lara's Boutique: $64 for 4 dresses.

x / 1 = 64 / 4

x = 64 / 4

x = $16 per dress.

The Dress Shop: $75 for 5 dresses.

x / 1 = 75 / 5

x = 75 / 5

x = $15 per dress.

Marge's Dresses: $160 for 8 dresses.

x / 1 = 160 / 8

x = 160 / 8

x = $20 per dress.

The boutique with the best deal will have the cheapest dresses. So, the best deal would be at B. The Dress Shop.

Hope this helps!

Answer:

x1:0 , x2 : 1

Step-by-step explanation:

Answer:

A c is 1 and equation B d is  1

Using the concept of the total differential we obtain that the approximate change in z when the point (x, y) changes from (7, 0) to (7.03, 0.03) ≈ 0.1896

To calculate the approximate change in z when the point (x, y) changes from (7, 0) to (7.03, 0.03) using the function \(\(f(x, y) = 8xe^{-y}\)\), we can use the concept of the total differential.

The total differential dz can be approximated using the formula:

\(\[dz \approx \frac{{\partial f}}{{\partial x}}\Delta x + \frac{{\partial f}}{{\partial y}}\Delta y.\]\)

First, let's calculate the partial derivatives of f(x, y) with respect to x and y:

\(\[\frac{{\partial f}}{{\partial x}} = 8e^{-y}\]\\\)

\(\[\frac{{\partial f}}{{\partial y}} = -8xe^{-y}\]\)

Now, we can substitute the provided values \(\(\Delta x = 7.03 - 7 = 0.03\)\) and \(\(\Delta y = 0.03 - 0 = 0.03\)\) into the formula:

\(\[\Delta z \approx \frac{{\partial f}}{{\partial x}} \Delta x + \frac{{\partial f}}{{\partial y}} \Delta y\]\)

\(\[\Delta z \approx 8e^{-0} \cdot 0.03 + (-8 \cdot 7 \cdot e^{-0}) \cdot 0.03\]\)

\(\[\Delta z \approx 0.24 - 1.68 \cdot 0.03\]\)

\(\[\Delta z \approx 0.24 - 0.0504\]\)

\(\[\Delta z \approx 0.1896\]\\\)

To know more about total differential refer here:

https://brainly.com/question/29318472#

#SPJ11

The probability of randomly selecting someone who does not believe that some psychics can help solve murder cases is 46.4%. Hence, the answer is 46.4%.

Given the poll showed that 53.6% of Americans say they believe that some psychics can help solve murder cases.

We are to find the probability of randomly selecting someone who does not believe that some psychics can help solve murder cases.

Let us consider the following events:

Let A be the event that someone believes that some psychics can help solve murder cases and B be the event that someone does not believe that some psychics can help solve murder cases.

Then A and B are complementary events, that is A∩B=∅ (i.e., the events cannot happen at the same time) and A∪B = S (the event space).

Thus we can write P(A) = 53.6% and P(B) = 100% - 53.6% = 46.4%.

Therefore, the probability of randomly selecting someone who does not believe that some psychics can help solve murder cases is 46.4%. Hence, the answer is 46.4%.

Know more about probability here:
https://brainly.com/question/251701

#SPJ11

Answer:

Yes it really does, you CAN NOT FIND THE SQUARE ROOT OF A NEGATIVE.

Step-by-step explanation:

Sorry if I came off as aggressive, I just wanted to get the point across.

The equation of the line, in the form ax+by=c where a,b, and c are integers, with no common factor, and a≥0, is -x + y = -4.

To find the equation of a line perpendicular to x+y=5 and passing through the point (1, -3), we need to determine the slope of the given line and then find the negative reciprocal of that slope to obtain the slope of the perpendicular line. The equation x+y=5 can be rewritten as y=-x+5. Comparing this equation to the standard form y=mx+b, we see that the slope of the line is -1. The negative reciprocal of -1 is 1, so the perpendicular line will have a slope of 1. Now, we can use the point-slope form of a line to find the equation. Using the point (1, -3) and the slope 1:

y - y₁ = m(x - x₁)

y - (-3) = 1(x - 1)

y + 3 = x - 1

Rearranging the equation:

x - y = 4

Now, we can multiply the equation by -1 to have the coefficient of x as a positive integer:

-(x - y) = -4

-x + y = -4

To know more about equation,

https://brainly.com/question/33661237

#SPJ11

The reported rate of return is not reasonable i.e. the rate of return on the investment is  -0.20% .

What is Return ?

The annual return on an investment, expressed as a percentage of the initial investment.an investment of $200 earns $12 for a year, so the Rate of Return is 12/200 = 0.06 = 6%.

Given, for an investment of $26,245, a quarterly statement reports that the account balance is $26,192 and rate of return for the same quarter was -0.02 %.

Here, we'll calculate the rate of return as follows:

Rate of return = (change in investment/ Initial investment) × 100

                        = ($26,192 - $26,245)/$26,245 × 100

                        = -53/26245 × 100

                        = - 0.20 %

Hence, The correct rate f return will be -0.20 %, not -0.02%.

Learn more about Return from the given link :

https://brainly.com/question/27961144

#SPJ1

Consider that the area of a sector of a circle is given by:

where θ is the angle of the sector and r is the radius.

For θ=40 and r = 8cm, you obtain:

The area of the small sector is about 22.34 cm^2.

Now, for θ=320 and r = 8cm, you obtain:

The area of the small sector is about 178.72 cm^2.

An equation of the line that passes through the given and is perpendicular to the given line (2,-5); 2y=3x+10 is 3y = -2x - 11

Let (x1, y1) = (2, -5)

We can write the equation of line 2y=3x+10 as,

y = (3/2)x + 5

The slope of the line 2y=3x+10 is,

m1 = 3/2

Let m2 be the slope of the required line.

We know that the product of the slope of the perpendicular lines is -1

m1 * m2 = -1

(3/2) * m2 = -1

m2 = -2/3

Using slope point form of line,

(y - y1) = m2(x - x1)

y - (-5) = (-2/3) * (x - 2)

y + 5 = -2/3x + 4/3

y = -2/3x + 4/3 - 5

y = -2/3x -11/3

3y = -2x - 11

Therefore, an equation of the line that passes through the given and is perpendicular to the given line (2,-5); 2y=3x+10 is 3y = -2x - 11

Learn more about equation of line here:

https://brainly.com/question/21511618

#SPJ1

The sum of the series is 64. In conclusion, the geometric series 8 + 7 + 49/8 + 343/64 + ... is convergent, and its sum is 64.

To determine if the geometric series is convergent or divergent, we need to check if the ratio between each term and its previous term is constant. In this series, the ratio between each term and its previous term is 7/8, which is less than 1. This means that the series is convergent.

To find the sum of the series, we can use the formula S = a / (1 - r), where S is the sum, a is the first term, and r is the ratio. In this case, a = 8 and r = 7/8, so:

S = 8 / (1 - 7/8)
S = 8 / (1/8)
S = 64

Therefore, the sum of the series is 64. In conclusion, the geometric series 8 + 7 + 49/8 + 343/64 + ... is convergent, and its sum is 64.

To know more about Geometric  visit :

https://brainly.com/question/29170212

#SPJ11

Answer:

----------------------------

Given expression:

Simplify it in below steps:

Correct choice is A.

Answer:

a) 1√6 = √6

Step-by-step explanation:

The expression is,

→ √(96) - √(54)

Let's simplify the expression,

→ √(96) - √(54)

→ √(16 × 6) - √(9 × 6)

→ (√16 × √6) - (√9 × √6)

→ (4 × √6) - (3 × √6)

→ 4√6 - 3√6

→ (4 - 3)√6

→ 1√6 = √6

Hence, the answer is √6.

The values of a, b, c are 152°, 28°, 152° respectively.

Angles around a point describes the sum of angles that can be arranged together so that they form a full turn.

The sum of angles at a point will give 360°.

This means that a + b + c + 28 = 360

c +28 = 180° ( angle on a straight line)

c = 180 -28

c = 152°

c = a( alternate angles are equal)

therefore the value of a = 152°

b = 28( alternate angles are equal)

therefore the value of b is 28

therefore the values of a, b, c are 152°, 28°, 152° respectively

learn more about angle at a point from

https://brainly.com/question/25716982

#SPJ1

$712.72

780×0.15

117

780−117

663

663×0.075

49.725

49.725+663

712.72