if 7 kilograms of bananas cost $8.40, how much do 12 kilograms costs​

Answer:

x=1/256

Step-by-step explanation:

hope it helps you

Answer:

I'm pretty sure it's because they have to be congruent, meaning they are the same size and these aren't

(I think)

The speeds of both Grayson and Maya can be found using the equation:

distance/time

So 45/3

and

26/2

Grayson was going 15mph while Maya was going 13mph

So Grayson was going 2mph faster than Maya

There are 15890700 different selections to win at lotto at a certain state.

To find the number of different selections that are possible, you can use the combination formula. The combination formula is:

C(n , r) = n! / (r! × (n - r)!)

where C(n , r) represents the number of combinations, n represents the total number of items, and r represents the number of items being chosen at a time.

In this case, n is 50 and r is 6, so the number of different selections is:

C(50 , 6) = 50! / (6! × (50 - 6)!) = 50!/6!44! = 15890700

Therefore, there are 15890700 different selections that are possible.

Learn more about combination here: https://brainly.com/question/11732255

#SPJ4

Answer:

10

Step-by-step explanation:

Answer:

10

Step-by-step explanation:

10 x 2 = 20

Answer:

d) no because they are skew

Step-by-step explanation:

e2020

Answer:

It's D

Step-by-step explanation:

A and D are both in different planes, skew lines are line that will never intersect because they are noncoplanar, meaning they are never in  the same plane. If they aren't in the same plane, they can't intersect.

Answer:

\(\{58198.2573,58239.7427\}\)

Step-by-step explanation:

We assume that the following conditions are true before constructing the confidence interval:

Assumption #1: Random Sampling.

Assumption #2: Independence.

Assumption #3: Large Sample.

Assumption #4: The 10% Condition (sample size is no bigger than 10% of population

Assumption #5: The Success / Failure Condition.

Assumption #6: Homogeneity of Variances.

A 95% confidence level correlates to a critical value of \(z^*=1.96\), hence:

\(\displaystyle CI=\bar{x}\pm z^*\biggr(\frac{s}{\sqrt{n}}\biggr)\\\\CI=58219\pm 1.96\biggr(\frac{56}{\sqrt{28}}\biggr)\\\\CI=58219\pm20.7427\\\\CI=\{58198.2573,58239.7427\}\)

Therefore, we are 95% confident that the true mean of the average yearly income for a married couple living in city C is between $58,198.2573 and $58,239.7427

We will use Equation (5.9) of Fourier transform analysis to calculate the Fourier transforms of the given sequences: (a) (½)^(n-1)u[n-1] and (b) (½)^|n-1|. F(ω) = Σ (½)^(n-1)e^(-jωn) for n = 1 to ∞.  F(ω) = Σ (½)^(n-1)e^(-jωn) for n = -∞ to ∞

(a) To calculate the Fourier transform of (½)^(n-1)u[n-1], we substitute the given sequence into Equation (5.9). Considering the definition of the unit step function u[n-1] (which is 1 for n ≥ 1 and 0 for n < 1), we can rewrite the sequence as (½)^(n-1) for n ≥ 1 and 0 for n < 1. Thus, we obtain the Fourier transform as:

F(ω) = Σ (½)^(n-1)e^(-jωn)

Evaluating the summation, we get:

F(ω) = Σ (½)^(n-1)e^(-jωn) for n = 1 to ∞

(b) To calculate the Fourier transform of (½)^|n-1|, we again substitute the given sequence into Equation (5.9). The absolute value function |n-1| can be expressed as (n-1) for n ≥ 1 and -(n-1) for n < 1. Thus, we have the Fourier transform as:

F(ω) = Σ (½)^(n-1)e^(-jωn) for n = -∞ to ∞

In both cases, the specific values of the Fourier transforms depend on the range of n considered and the values of ω. Further evaluation of the summations and manipulation of the resulting expressions may be required to obtain the final forms of the Fourier transforms for these sequences.

Learn more about Fourier transform here:

https://brainly.com/question/1542972

#SPJ11

Answer:

Data set A

Step-by-step explanation:

Data set A is the one that is more spread out.

The mean is the same as the average of a given sample. It is usually a measure of the central tendency of a data set.

Standard deviation is a measure of the spread of a given set of data.

Since data set A has a standard deviation of 35, it the most spread out.

Answer:

40

Step-by-step explanation:

76p+49p+13

=(76-49)p+13      [   plus (+) plus = minus(-)  ]

=27p+13

=40p or p=40 ans

Step-by-step explanation:

To find the Highest Common Factor (H.C.F.) of 567 and 255 using Euclid's division lemma, we can follow these steps:

Step 1: Apply Euclid's division lemma:

Divide the larger number, 567, by the smaller number, 255, and find the remainder.

567 ÷ 255 = 2 remainder 57

Step 2: Apply Euclid's division lemma again:

Now, divide the previous divisor, 255, by the remainder, 57, and find the new remainder.

255 ÷ 57 = 4 remainder 27

Step 3: Repeat the process:

Next, divide the previous divisor, 57, by the remainder, 27, and find the new remainder.

57 ÷ 27 = 2 remainder 3

Step 4: Continue until we obtain a remainder of 0:

Now, divide the previous divisor, 27, by the remainder, 3, and find the new remainder.

27 ÷ 3 = 9 remainder 0

Since we have obtained a remainder of 0, the process ends here.

Step 5: The H.C.F. is the last non-zero remainder:

The H.C.F. of 567 and 255 is the last non-zero remainder obtained in the previous step, which is 3.

Therefore, the H.C.F. of 567 and 255 is 3.

The length of the rectangle is 19 cm.

The formula for the area of a rectangle,

Area = Length x Width

Given that the area is 336 cm squared.

So, we can set up an equation,

⇒ 336 = (w + 5)w

where w represents the width of the rectangle.

Expanding this equation,

⇒ 336 = w² + 5w

Moving all terms to one side:

⇒ w² + 5w - 336 = 0

This is a quadratic equation that we can solve using the quadratic formula,

⇒ w = (-5 ± √(5² - 4(1)(-336))) / (2(1))

⇒ w = (-5 ± 23) / 2

We'll take the positive value,

⇒ w = 14

So, the width of the rectangle is 14 cm.

We also know that the length is 5 cm more than the width,

Therefore,

⇒ l = w + 5

⇒ l = 14 + 5

⇒ l = 19

Therefore, the length of the rectangle is 19 cm.

Learn more about the rectangle visit:

https://brainly.com/question/2607596

#SPJ12

To find an equation of the plane tangent to the surface 8xy + 5yz + 7xz − 80 = 0 at the point (2, 2, 2), we need to find the gradient vector of the surface at that point.

The gradient vector is given b

grad(f) = (df/dx, df/dy, df/dz)

where f(x, y, z) = 8xy + 5yz + 7xz − 80.

Taking partial derivatives,

df/dx = 8y + 7z

df/dy = 8x + 5z

df/dz = 5y + 7x

Evaluating these at the point (2, 2, 2), we get:

df/dx = 8(2) + 7(2) = 30

df/dy = 8(2) + 5(2) = 26

df/dz = 5(2) + 7(2) = 24

So the gradient vector at the point (2, 2, 2) is:

grad(f)(2, 2, 2) = (30, 26, 24)

This vector is normal to the tangent plane. Therefore, an equation of the tangent plane is given by:

30(x − 2) + 26(y − 2) + 24(z − 2) = 0

Simplifying, we get:

30x + 26y + 24z − 136 = 0

So the equation of the plane to the surface at the point (2, 2, 2) is 30x + 26y + 24z − 136 = 0.

To know more about  tangent planes refer here

https://brainly.com/question/30260323

SPJ11

Y = (1/6)*e^5t  is  differential equation .

What exactly does differential equation mean?

An equation that connects one or more unknown functions and their derivatives is known as a differential equation in mathematics.  

                                     Applications typically use functions to describe physical quantities, derivatives to indicate the rates at which those quantities change, and differential equations to define a relationship between the two.

y′′−9y′+26y=e^(5t)

The characteristice equation of the differential equation is : r^2 -9r +26 =0

On solving we get the values of r=4.5 + 2.34i (z1) ,  4.5 - 2.4i(z2)--- (complex roots)

homogeneous solution is: yh = c1e^z1t + c2e^z2t

Plug  Y = Ae^5t in the ODE:

=   25Ae^5t -9*5Ae^5t +26Ae^5t =e^(5t)

25A -45A +26A =1 ;  6A = 1; A =1/6

Y = c1e^z1t + c2e^z2t  is a general solution but we wnata particular solution

So, simply Y = (1/6)*e^5t

Learn more about differential equation

brainly.com/question/14620493

#SPJ4

Traits can be dominant or recessive, and the recessive traits were obscured by the dominant ones in the F1 generation.

Given,

In the question:

Mendel accounted for the observation that traits which had disappeared in the f1 generation reappeared in the f2 generation by proposing that___

Now, According to the question:

Fill up the above blank:

Mendel accounted for the observation that traits which had disappeared in the f1 generation reappeared in the f2 generation by proposing that__

Solution:

In the Mendel’s experiment, some traits which were absent in the F1 generation appeared in the second generation cross. By this he concluded, that the traits expressed in the F1 generation were dominant and hence they capped the expression of traits associated with recessive allele. He classified the traits in F2 generation as recessive, because these traits can occur only when they are in pair i.e they form individuals with homozygous recessive genotype.  

For instance – If “R” is allele for dominant red color trait and “r” is the allele for recessive white color trait, then the cross between true breeding red flowers and white flowers will produce following offspring  

RR * rr

Rr, Rr, Rr, Rr

Thus, in F1 generation all the offspring are heterozygous red

F2 generation-  

Rr * Rr

RR, Rr, Rr, rr

The recessive trait of white colored flower reappears in second generation.

Hence, Traits can be dominant or recessive, and the recessive traits were obscured by the dominant ones in the F1 generation.

Learn more about F1 generation at:

https://brainly.com/question/13183877

#SPJ4

Answer:

for me its b.

Step-by-step explanation:

because its up to 5% to 12%

1 - According to the conjugate zeros theorem if a complex number is the root of a polynomial its conjugate is a root as well.

2 - So the conjugates of i, -7i would be

-i, 7i, so

-i , 7i would ALSO be roots of the polynomial according to the conjugates zeros theorem and those are the two roots we were missing.

0.5  is the p-value for this Z -test .

What is the Z test's p-value?

For a lower tail test, the test statistic z is determined to be zero that means

P(z<0)

Then p-value is

p-value = P(z<0) = 0.5 (From z score table )

Learn more about p-value in Z test.

brainly.com/question/13686040

#SPJ4

Answer:

-300

Step-by-step explanation:

Step 1:  Find the amount Elmer's funds decreased after purchasing the rabbits:

Let x represent Elmer's funds.

Since Elmer bought five rabbits for $10 each, he lost $10 5 times.

x - (10 * 5)

x - 50

Thus, Elmer lost (spent) $50 for the 5 rabbits.

Step 2:  Find the amount Elmer's funds decreased after purchasing the  cupboards:

Since Elmer bought four cupboards for $70 each, he lost $70 4 times:

x - (50 + (70 * 4))

x - (50 + 280)

x - 330

Thus, after purchasing the rabbits and cupboards, Elmer lost $330.

Step 3:  Find the amount Elmer's funds increased after finding the twenty-dollar bill:

Since Elmer found a twenty-dollar bill, he gained $20

x - (330 + 20)

x - 310

Step 4:  Find the amount Elmer's funds increased after returning one rabbit:

Since Elmer returned one rabbit, he gained $10:

x - (310 + 10)

x - 300

Thus, Elmer's funds changed totally by -$300.

Putting all the information together, we have:

x - 10 - 10 - 10 - 10 - 10 - 70 - 70 - 70 - 70 + 20 + 10

x - 50 - 280 + 30

x - 330 + 30

x - $300

Answer:

191

Step-by-step explanation:

Sorry it's sideways. I drew a box chart for this. First, fill in what you know: the number of white and black beads Ally has. Then, calculate how many black beads Betty has (Ally's number, 59, minus 35.) 59-35 = 24.

They tell you the total number of beads is 346. Add up Ally's total to get 131, then subtract that from 346. That's Betty's total beads, 215.

Last, subtract the 24 black beads Betty has from the 215 total to get 191.

Answer:

Needs more detail

Answer:

order of operations

Step-by-step explanation:

When you enter a formula with more than one mathematical operation, the formula is not necessarily calculated left to right because excel calculations follow the mathematical rules called the order of operations.

The value of m is 25.

In a regular polygon with 20 sides, there are 18 triangles.

The probability that a woman chosen at random does not wear a size 14 dress is 7/10.

We have,

58.

4m + 15 and 5m - 10 are corresponding angles.

So,

4m + 15 = 5m - 10

15 + 10 = 5m - 4m

25 = m

m = 25

59.

In a regular polygon with n sides, the number of triangles that can be formed by connecting any three vertices (corners) of the polygon is given by the formula:

Number of triangles = (n-2)

For a regular polygon with 20 sides,

Number of triangles = (20 - 2) = 18

60.

Given that 3 out of every 10 women wear size 14 dresses, the probability of a woman wearing a size 14 dress is 3/10.

Probability of not wearing a size 14 dress = 1 - Probability of wearing a size 14 dress

Probability of not wearing a size 14 dress = 1 - 3/10

Probability of not wearing a size 14 dress = (10/10) - (3/10)

Probability of not wearing a size 14 dress = 7/10

Therefore,

The value of m is 25.

In a regular polygon with 20 sides, there are 18 triangles.

The probability that a woman chosen at random does not wear a size 14 dress is 7/10.

Learn more about corresponding angles here:

https://brainly.com/question/1597341

#SPJ1

Answer:

6 units

Step-by-step explanation:

distance between (-2,-2) and (4,-2)

distance formula,

√(x2-x1)²+(y2-y1)²

x2=4

x1=-2

y1=-2

y2=-2

putting the values,

√(4+2)²+(-2+2)²

√6²+0²

6 units

Answer:

All solutions

Step-by-step explanation:

Move the y from one side onto the other

-2x+ y= -1

+2x       +2x

y= 2x -1

4x- 2(2x- 1)= 2

4x- 4x+ 2= 2

0= 0

All solutions

Finding the mode of each data-set, the bimodal city's data is given by:

C. City C.

It is the value that appears the most times in the data-set. If two values appear the same number of sets, the data-set is called bimodal.

Hence, looking at the table:

Hence option C is correct.

More can be learned about the mode of a data-set at https://brainly.com/question/24732674

#SPJ1

y₁ =  [1  -4  0  1] and y₂ = [5  1  -6  -1] is the orthogonal basis for w using Gram-Schmidt process.

Given,

The set;

x₁ = [1  -4  0  1]

x₂ = [7  -7  -6  1]

We have to produce the orthogonal basis for w using the Gram-Schmidt process;

Here,

y₁ = x₁ =  [1  -4  0  1]

Now,

Solve for y₂

y₂ = x₂ - [x₂y₁ / y₁y₁] y₁

That is,

y₂ = [7  -7  -6  1] - ( [7  -7  -6  1] [1  -4  0  1] / [1  -4  0  1] [1  -4  0  1] ) × [1  -4  0  1]

y₂ =  [7  -7  -6  1] - (7 + 28 - 0 + 1) / (1 + 16 + 0 + 1) × [1  -4  0  1]

y₂ = [7  -7  -6  1]  - 36/18 × [1  -4  0  1]

y₂ =  [7  -7  -6  1] - 2  × [1  -4  0  1]

y₂ =  [7  -7  -6  1] - [2  8  0  2]

y₂ = [5  1  -6  -1]

That is,

The orthogonal basis for w using Gram-Schmidt process is,

y₁ =  [1  -4  0  1] and y₂ = [5  1  -6  -1]

Learn more about Gram-Schmidt process here;

https://brainly.com/question/17132977

#SPJ4