work out the total number of mobile phones sold in the 3 years​

Interference is a property of ALL the given wave options, which are light waves, sound waves, and water waves.

Interference is the phenomenon of two or more waves combining to form a resultant wave of greater, lower, or the same amplitude.

When two waves meet at the same point at the same time, they either combine constructively (resulting in the formation of a wave of greater amplitude) or destructively (resulting in the formation of a wave of lower amplitude).

For instance, when two sound waves or light waves meet, they create a resultant wave whose amplitude is equal to the sum of the two original waves.

This is known as constructive interference.

On the other hand, when two waves meet and their amplitudes are in opposite directions, they produce a resultant wave whose amplitude is equal to the difference between the two waves.

This is known as destructive interference.

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Answer:

Step-by-step explanation:

To make a boxplot, we need to know the minimum, Q1, median, Q3, and maximum.

The minimum is the smallest value: 15

The maximum is the largest value: 34

The median is found by arranging the numbers from smallest to largest and finding the middle point:

15, 20, 25, 25, 27, 28, 30, 34; there is not an exact middle here so we take the two middlemost points and divide by 2: 25+27/2 = 52/2 = 26

Q1 takes the numbers to the left of the median and finds the middle of those points. 15, 20, 25, 25. Again, there is no exact middle, so we use the same method as above. 20+25/2 = 22.5

Q1 takes the numbers to the right of the median and finds the middle of those points. 27, 28, 30, 34. Again, there is no exact middle, so we use the same method as above. 28+30/2 =  29

Now, use these points to construct!

Answer:

BOX 2

Step-by-step explanation:

look at the photo

The value of x is equal to 73°.

Herein we have a picture that contains a geometrical system formed by two adjacent angles, in which we know the measure of one angle and the measure of the sum of the two angles. Mathematically speaking, the geometrical system are described by the following equations:

m ∠ ABD + m ∠ DBC = 168°               (1)

m ∠ ABD = 95°                                   (2)

Now we proceed to solve the system of linear equations:

m ∠ DBC = 168° - m ∠ ABD

m ∠ DBC = 168° - 95°

m ∠ DBC = 73°

Then, the value of x is equal to 73°.

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Answer:

1 2 3 4 5 6 7 8 9 10 (x-6) (4,3) (21,0)

The formula for standard error that applies to this problem is SE = sqrt[p(1-p)/n], where SE represents the standard error, p represents the probability of success, and n represents the sample size. In this case, N represents the population size, but it is not necessary for calculating the standard error.

Substituting the values given in the problem, we have:

SE = sqrt[0.45(1-0.45)/44] = 0.0717 (rounded to four decimal places)

Therefore, the standard error for this problem is 0.0717. This value represents the degree of variability or uncertainty in the sample proportion, or the degree to which the sample proportion is likely to deviate from the true population proportion. A larger sample size or a more extreme probability of success (closer to 0 or 1) would result in a smaller standard error, indicating greater precision in the estimate of the population proportion.

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Answer:

cat

Step-by-step explanation:

Answer:

7.5

Step-by-step explanation:

The area of a triangle is found by the formula A=1/2bh, where b is the base length, and h is the height. If we count the squares, we can find that the base length of the triangle is 3 units, and the height is 5 units. If we plug those numbers into the equation to get A=1/2*3*5, we can solve to get A=7.5

Answer:

1st Q- B

2nd Q- A

Step-by-step explanation:

1st Q:

n²<220<(n+1)²

n²<220<(n²+2n+1)

we can plug in the values in the answers and see which one satisfies the inequality:

when n=13 --> 13²<220<(13²+2*13+1) => 169<220<196 (this one does not work)

when n=14 --> 14²<220<(14²+2*14+1) => 196<220<225 (this one works)

when n=15 --> 15²<220<(15²+2*15+1) => 225<220<256 (this one does not work)

when n=16 --> 16²<220<(16²+2*16+1) => 256<220<289 (this one does not work)

so the answer is B

2nd Q:

A

(see the attachment below for explanation)

"ba" = 11,

"ab" = 38,

38 - 11 = 27,

Sooooo... Now you have the value of "ba" and "ab."

Welcome!! <3

The interest she would pay is $694.40.

Simple interest rate is the interest that is paid only on the principal portion of a loan. This means that the debtor does not pays interest on the interest rate already accrued.

Simple interest = principal x time x interest rate

$6200 x 4 x 0.028 =  $694.40.

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Using the Integral Test, the correct choice is B. Since the integral ∫(k+7)dx diverges, the series also diverges.

We are supposed to use Integral Test to determine the convergence or divergence of the series, ∑(k+7)dx.

We can use the Integral Test to test for the convergence of series if the function in the series is continuous, positive, and decreasing for all x greater than or equal to some value N.

The Integral Test states that a series converges if and only if the integral of the series term is convergent, i.e. if the integral of u(x)dx is convergent. Also, if the integral of u(x)dx diverges, the series is divergent.

So we need to check whether the function in the given series is continuous, positive, and decreasing for all x greater than or equal to some value N.

If we integrate the series, ∑(k+7)dx, we get:∫(k+7)dx= ∫k

dx + ∫7dx= (k²/2) + 7x+ C

where C is the constant of integration.

Since the value of C is not given, we cannot say anything about the exact value of the integral.

However, the value of the constant of integration does not matter in this case as we only need to determine whether the integral converges or diverges.

Therefore, we can use the Integral Test to determine the convergence or divergence of the series.

Using the Integral Test, the correct choice is B.

Since the integral ∫(k+7)dx diverges, the series also diverges.

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Answer:

The farm would need 235.2 liters daily for 4 horses, 8 sheep and 16 chickens.

Step-by-step explanation:

The daily consumption of water in the farm must be:

\(x = (4\,horses)\times \left(50\,\frac{L}{horse} \right) + (8\,sheep)\times \left(4\,\frac{L}{sheep} \right) + (16\,chickens)\times \left(0.2\,\frac{L}{chicken} \right)\)

\(x = 235.2\,L\)

The farm would need 235.2 liters daily for 4 horses, 8 sheep and 16 chickens.

Answer:

the mountains bring Pat joy because it is beautiful

only one I know

Step-by-step explanation:

:)

Answer:

There are 6 ordered pairs

Step-by-step explanation:

hope this helps u

The reason for statement number 5 include the following: B. CPCTC.

In Mathematics and Geometry, CPCTC is an abbreviation for corresponding parts of congruent triangles are congruent and it states that the corresponding angles and side lengths of two (2) or more triangles are congruent if they are both congruent i.e AB = DE.

Since it has been stated that side AB is equal to side DE, we can logically deduce that triangle BAC (ΔBAC) is congruent to triangle EDC (ΔEDC). This ultimately implies that, ∠C is congruent to ∠F in the proof above, based on the corresponding parts of congruent triangles are congruent (CPCTC).

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Missing information:

The question is incomplete and the complete question is shown in the attached picture.

The image shows a square with a circle cut out of it.

We need to compute the area of the square and subtract the area of the circle to find the shaded area.

The area of a square of side length x is:

We are given the side length of x = 10 ft, thus:

The area of a circle of radius r is given by:

The circle inside the square has a diameter of d=10 ft, thus its radius is r = 10/2 = 5 ft. Calculating the area:

Using π=3.14:

Now, subtracting areas:

Rounding to the next integer, the required area is approximately 22 square ft

Choice: 22 square ft

Answer:Both A and C

Step-by-step explanation:

Four friends want to take a vacation together, so each one gets a part-time job. Each person has 8 weeks to save $720 for the vacation. Analyze the four individual plans below and decide which of the four people will reach his or her goal of saving $720 for vacation.

Friend A: Works 13 hours per week at $6.95 per hour.

Friend B: Works 15 hours per week at $5.85 per hour.

Friend C: Works 18 hours per week at $5.25 per hour.

Friend D: Works 11 hours per week at $7.80 per hour.  there!

Answer:

commutavive property.

Step-by-step explanation:

Answer:

A rectangle that has the same volume can be the opposite of  that.

Step-by-step explanation:

The length = 4

the width = 20

the height = 6

Hope this helps,

v= l ×w×h

ヾ(・ω・`)ノ

No, the surface areas are not the same.

The cost of the apples is 2.9 dollars.

The cost of the bananas is 5.7 dollars.

The total cost is 6 dollars, each apple cost $1.50 each banana cost $.30 and there’s two more bananas then apples.

Therefore,

let

x = number of apples

y = 2x

where

Therefore, using equations,

1.5(x) + y(0.30) = 6

Hence,

where

y = 2x

1.5(x) + 2x(0.30) = 6

1.5x + 0.6x = 6

2.1x = 6

divide both sides by 2.1

x = 6 / 2.1

x = 2.9 dollars

y = 2(2.9) = 5.7 dollars

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The number 150 is 0.0000455 % out of 329.5 million

The statement is given as

the percentage of 150 out of 329.5 million

The percentage can be calculated as

Percentage = 150 out of 329.5 million *100%

Express as fraction

So, we have

Percentage = 150/329.5 million *100%

Rewrite as

Percentage = 150 *100/329.5 million %

Evaluate the product

Percentage = 15000/329.5 million %

Evaluate the quotient

Percentage = 0.0000455 %

Hence, the percentage of 150 out of 329.5 million is 0.0000455 %

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Henry could only see one line since both lines had the same slope, which means that the graphs of both equations will be identical and hence overlap.

Linear equations in a system 3x + 2y = 4, and 9x + 6y = 12

We must demonstrate why Henry could only make out one line when he plotted the equations 3x-2y=4 and 9x-6y=12 on a graph.

Take the provided linear equation system into consideration.

3x - 2y = 4 ................(1)

9x - 6y = 12 ..................(2)

Due to the fact that equation (2) is a multiple of equation (1), 3 (3x - 2y = 4) = 9x - 6y = 12

The slopes of the provided equations are also same.

Difference with regard to x for equation (1) yields,

additional to equation (2),

With regard to x, we can differentiate to get,

The graphs of both equations will overlap since both lines have the same slope and hence have the same appearance on the graph.

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The angles are p=67°, q=15°, x=82°, y=81°, s=28° and m=72.5°.

For the given figures we need to find the unknown angles.

In the first figure to find angle p first apply the angle sum property to the triangle.

That is, 82°+31°+p=180° (∵ Sum of interior angles of a triangle is 180°)

⇒p=67°.

p=67° is a vertically opposite angle to the other triangle.

To find q:

67°+98°+q=180°

⇒q=15°.

In the second figure to find angles x and y apply the angle sum property to the triangle.

That is, 28°+(53°+x)+17°=180°

⇒98°+x=180°

⇒x=82°.

To find y:

x+y+17°=180°

⇒82°+y+17°=180°

⇒y=81°

In the third figure to find angles x and y apply the angle sum property to the triangle.

That is, 100-x+30+4x+7x=180°

⇒10x=80°⇒x=10°.

Now the angles of the triangle are 100-10=90°, 30+4x=70°

y=90°+70°=160° (∵Exterior angle is equal to the sum of two opposite interior angles).

In the 4th figure, to find angle 's' use the isosceles triangle concept.

That is, s+76°+76°=180° (∵In isosceles triangle base angles are equal)

⇒s=28°

In the 5th figure, to find angle 'm' use the isosceles triangle concept.

That is, 35°+m+m=180° (∵In isosceles triangle base angles are equal)

⇒2m=145°

⇒m=72.5°

Hence, the angles are p=67°, q=15°, x=82°, y=81°, s=28° and m=72.5°.

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Answer:

Your answer in Decimal form is 46.5.

Step-by-step explanation:

My screenshot below shows you.

Step-by-step explanation:

2x+y=7

(A) (0,7),(72,0)and(3,1)

(B) (0,6),(72,0)and(3,1)

(C) (0,7),(52,0)and(3,1)

(D) (0,7),(72,0)and(2,1)

Question

Answers

Related Questions

Find three solutions of the equation: 2x+y=7

(A) (0,7),(72,0)and(3,1)

(B) (0,6),(72,0)and(3,1)

(C) (0,7),(52,0)and(3,1)

(D) (0,7),(72,0)and(2,1)

Given:

The linear equation having variables x and y is given as –

2x+y=7

For the initial solution of the equation, put x=0 in the linear equation and obtain the value of variable y .

So, substituting x=0 in the equation, we get,

2×0+y=7y=7

So, the first solution of the linear equation is

x=0

y=7

In two-dimensional coordinates form (x,y) , the first solution is (0,7) .

Now, similarly,

Substituting y=0 in the linear equation we have,

⇒2x+0=7⇒2x=7⇒x=72

So, the second solution of the linear equation is

x=72

y=0

In two-dimensional coordinates form (x,y) , the second solution is (72,0) .

And finally,

Substituting y=1 in the linear equation we have,

⇒2x+1=7⇒2x=6⇒x=62⇒x=3

So, the third solution of the linear equation is

x=3

y=1

In two-dimensional coordinates form (x,y) , the third solution is (3,1) .

Therefore, the three solutions of the equation 2x+y=7 are (0,7) , (72,0) and (3,1) .

The correct answer is –

(A) (0,7),(72,0)and(3,1)

Answer:

Therefore, the three solutions of the equation 2x+y=7 are (0,7) , (72,0) and (3,1) . So, the correct answer is “Option A”.

Step-by-step explanation:

The width (in minutes) of the 95 percent confidence interval for the true mean transaction time is 1.2786 minutes.

Sample size (n) = 16.

Sample mean = 2.8 minutes.

Sample standard deviation (σ) = 1.2 minutes.

Confidence interval given = 95%.

The degree of freedom (df) can be calculated as n - 1.

df = n - 1 = 16 - 1 = 15.

Since, the level of confidence is 95%, the level of significance α = 1 - 0.95 = 0.05.

From the T-Distribution table, we take the value at critical value α/2 with the degree of freedom 15.

\(t_{\frac{\alpha }{2} ,15}\) = 2.131.

Now, the margin of error can be shown as follows:

\(E = t_{\frac{\alpha }{2} ,15} * \frac{\sigma}{\sqrt{n} } \\\Rightarrow E = 2.131 * \frac{1.2}{\sqrt{16} }\\ \Rightarrow E = 0.6393\)

The width at the confidence interval of 95%, is twice the margin of error, that is:

Width = 2*E = 2*0.6393 = 1.2786.

Thus, the width (in minutes) of the 95 percent confidence interval for the true mean transaction time is 1.2786 minutes.

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Answer:

16x^2-24-4

Step-by-step explanation:

8(2x^2-3x-.5)

16x^2-24x-4