The pie chart below shows information about
the electronic devices that a shop sold in
January.
The shop sold 900 electronic devices in total in
January.
In February, the shop sold the same numbers of
tablets, desktop computers and laptops as in
January, but sold 40% more mobile phones.
If a second pie chart was drawn showing the
shop's sales in February, what would the central
angle of the mobile phones section be?
Give your answer in degrees (°) to 1 d.p.
Electronic devices sold in January
70°
84
60
146°
Key
Desktop computer
Laptop
Tablet
Mobile phone
Not drawn accurately

Answer:

45.071+2.95= 48.021

Step-by-step explanation:

That's the answer

Answer:

48.021

Step-by-step explanation:

Answer:

$8.10

Step-by-step explanation:

You can just multiply how many yards she bought by the price per yard.

3×2.7=

$8.10

She spent 8 dollars and 10 cents.

Answer:

8b

Step-by-step explanation:

You can factor the b-term out since b-term exists for all terms in the expression. By factoring out, you are basically dividing the factored term off and put it outside of the bracket, thus:

\(\displaystyle{16b-8b=\left(16-8\right)b}\)

Then evaluate and simplify:

\(\displaystyle{\left(16-8\right)b=8\cdot b}\\\\\displaystyle{=8b}\)

Answer:

m∠B=52

∘

Step-by-step explanation:

Two or more angles are said to be complementary if they sum up to 90 degrees.

Given that angles A and B are complementary, then:

\begin{gathered}\angle A+\angle B=90^\circ\\m\angle A=(2x+18)^{\circ}\\m\angle B=(6x-8)^{\circ}\\$Therefore:\\(2x+18)^{\circ}+(6x-8)^{\circ}=90^\circ\\2x+6x+18-8=90^\circ\\8x+10^\circ=90^\circ\\8x=90^\circ-10^\circ\\8x=80^\circ\\$Divide both sides by 8\\x=10^\circ\\$Therefore:\\m\angle B=(6x-8)^{\circ}\\m\angle B=(6(10)-8)^{\circ}\\=60-8\\m\angle B=52^{\circ}\end{gathered}

The total number of groups in the study of one way ANOVA with the given condition of variable and levels is four different groups and number of different factors in one-way ANOVA is equal to one.

In a one-way ANOVA with one independent variable with four levels, there are four different groups in the study.

Each group represents a level of the independent variable.

There is only one factor in a one-way ANOVA.

The factor is the independent variable with the four levels, which is used to classify the groups in the study.

The factor is what the researcher is interested in studying.

And the ANOVA is used to determine if there are any statistically significant differences in the mean scores between the groups.

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Answer:

a

Step-by-step explanation:

5 times 6 = 30

9 times 6 = 54

Answer:

was it correct the guy above me answers?

The probability of point being in between B and C is 0.167

Probability is a statistic used to indicate the likelihood or potential that a specific event will take place. Both proportions ranging from 0 to 1 and percentages ranging from 0% to 100% can be used to express probabilities.

The likelihood is based on the range of potential outcomes. the total number of possible outcomes. As an illustration, since there is only one way to get a head and a total of two possible results, the likelihood of flipping a coin and getting heads is one in two. a tail or a head.

Distance between B and C= 4 units

Total distance=24

Probability that point lie between B and C = 4/24 =1/6

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Answer:

The answer is 243

Step-by-step explanation:

Since there are 3 answers for each question and a total of 5 questions, you could do 3*3*3*3*3 or 3^5. Both will equal 243. 243 is the amount of possible different combinations that exist in this problem.

Hope this helps!

Answer:

-50.82

Step-by-step explanation:

((0−3.82)−6×8)+1

(-3.82−6×8)+1

(-3.82−48)+1

-51.82+1

-50.82

Answer:

To get the solution, we are looking for, we need to point out what we know.

1. We assume, that the number 69 is 100% - because it's the output value of the task.

2. We assume, that x is the value we are looking for.

3. If 100% equals 69, so we can write it down as 100%=69.

4. We know, that x% equals 87 of the output value, so we can write it down as x%=87.

5. Now we have two simple equations:

1) 100%=69

2) x%=87

where left sides of both of them have the same units, and both right sides have the same units, so we can do something like that:

100%/x%=69/87

6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for 87 is what percent of 69

100%/x%=69/87

(100/x)*x=(69/87)*x       - we multiply both sides of the equation by x

100=0.79310344827586*x       - we divide both sides of the equation by (0.79310344827586) to get x

100/0.79310344827586=x

126.08695652174=x

x=126.08695652174

now we have:

87 is 126.08695652174% of 69

Step-by-step explanation:

Hope it helps :)

Brainliest pls? Have a good day/night

I did not get Your Question Probably But the way I see it the answer is:

The equation of a circle with center (h, k) and radius r can be written as:

(x - h)^2 + (y - k)^2 = r^2

In this case, the center of the circle is (0, -6). To find the radius, we can use the distance formula between the center and the given point (-√28, 3):

r = √((x₂ - x₁)^2 + (y₂ - y₁)^2)

Plugging in the values:

r = √((-√28 - 0)^2 + (3 - (-6))^2)

Simplifying:

r = √(28 + 81)

r = √109

Therefore, the equation of the circle with center (0, -6) and containing the point (-√28, 3) is:

(x - 0)^2 + (y + 6)^2 = (√109)^2

Simplifying further:

x^2 + (y + 6)^2 = 109

Answer:

The equation of the circle with center (0, -6) containing the point (-√28, 3) is x^2 + (y + 6)^2 = 109.

Step-by-step explanation:

The equation of a circle with center (h, k) and radius r is given by the formula:

(x - h)^2 + (y - k)^2 = r^2

In this case, the center of the circle is (0, -6), which means that h = 0 and k = -6. We also know that the circle contains the point (-√28, 3), which means that this point is on the circle and satisfies the equation above.

To find the radius r, we can use the distance formula between the center of the circle and the given point:

r = sqrt((0 - (-√28))^2 + (-6 - 3)^2) = sqrt(28 + 81) = sqrt(109)

Substituting h, k, and r into the equation of the circle, we get:

x^2 + (y + 6)^2 = 109

Therefore, the equation of the circle is x^2 + (y + 6)^2 = 109.

Answer:

189.14 miles.

Step-by-step explanation:

This is a vector problem.

A boat sails on a bearing of 73°. This means it is going north, forming a 90° triangle.

The sum of angles in a triangle = 180°

We need to find the third angle.

180° = 90° + 73° + x°

x° = 180° - (90 + 73) °

x = 180° - 163°

x = 17°

The boat then turns and sails 209 miles on a bearing of 190 degrees.

Since it is sailing 190°, it is sailing more than 180°

= 190° - 180° = 10°

This would lead to the formation of another triangle let us call it ABC

Hence, we would have:

90° - ( 10 + 17)°

90° - 27° = 63°

To find the distance of the boat, we would use Cosine rule.

a² = b² + c² - 2bc × Cos A

a = √(b² + c² - 2bc × Cos A

b = 128 miles

c = 209 miles

A = 63°

a = √(128² + 209² -2 × 128 × 209 × Cos 63°)

a = 189.14199miles

Approximately 189.14 miles.

Therefore, the distance of the boat from it's starting point is 189.14 miles.

Answer:

The side length of the cube is 5 cm. Then the volume is simply 5\times 5\times5 = 125

LxWxH

The volume of a cube is the cube of the length of the side of the cube. The volume of the cube whose side length is 5x units is 125x³ units³.

The volume of a cube is the cube of the length of the side of the cube. Therefore, the formula can be written as,

The Volume of the cube = a³

Given the length of the side of the cube is 5x units. Therefore, the volume of the cube will be,

Volume of the cube = a³ = (5x)³ = 125x³ units³

Hence, the volume of the cube whose side length is 5x units is 125x³ units³.

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Answer:

t=p(unit pf weight)

Step-by-step explanation:

t=plbs

total price is the price time the lbs of feed

(unit of weight may change) depending on question

Reasonable algorithms expand at polynomial rates or less quickly. Unreasonable algorithms expand exponentially. Even for relatively small problem sizes, the time to solve an unreasonable algorithm increases very quickly.

When the algorithm takes an excessively long time, we say that the number of steps is an exponential function of the size of the input (or some other function that is larger than any polynomial). Simply increasing the input size (n) by 1 doubles the number of steps for an algorithm that runs in 2n time.

Depending on the polynomial, polynomial time can be further decomposed. Algorithms with a runtime of approximately n2 operate in quadratic time. (If the input size is doubled, the number of steps is quadrupled.) In practise, polynomial time algorithms that take longer than cubic (n³) time are uncommon.

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Answer: - 1°F

Step-by-step explanation:

Given that:

At 8a.m:

Temperature = 3°F below 0

By 1p.m ; Temperature rose by 14F ;

By 10pm ; temperature dropped by 12F

Temperature at 10 pm:

3°F below 0 = - 3°F

Temperature at 1pm: temperature increased by 14°F

-3°F + 14°F = 11°F

Temperature at 10pm: temperature dropped by 12°F

11°F - 12 = - 1°F

5a. A function to show p, the number of parrots t years after 2010 is \(P(t) = 515(1.54)^t\\\\\).

5b. The number of parrots that is expected to be there in 2016 is 6,870 parrots.

In Mathematics and Statistics, a population that increases at a specific period of time represent an exponential growth. This ultimately implies that, a mathematical model for any population that increases by r percent per unit of time is an exponential function of this form:

\(P(t) = I(1 + r)^t\\\\\)

Where:

Part a.

By substituting the given parameters into the formula, an exponential function to show p, the number of parrots t years after 2010 is given by;

\(P(t) = I(1 + r)^t\\\\\)

4418= 515(1 + r)⁵

(1 + r)⁵ = 4418/515

(1 + r)⁵ = 8.5786407766990

1 + r = 1.54

Therefore, the required exponential function to show p is given by;

\(P(t) = 515(1.54)^t\\\\\)

Part b.

When t = 6 years, the number of parrots can be calculated as follows;

\(P(6) = 515(1.54)^6\)

P(6) = 6,869.60 ≈ 6,870 parrots.

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Answer: n = 1/2; m = 2/3

Step-by-step explanation:

A ⇒ 12 y = 6x + 24

\(y=\frac{n}{2}+2\)

\(n=\frac{1}{2}\)

B ⇒ 3y = 2x + 18

\(y=\frac{2}{3}n+6\)

\(m=\frac{2}{3}\)

∴ Lines are neither because slop diff.

Based on the given data, we can calculate the sample proportions of adults using social media for each country as follows:

United Kingdom: p1 = 480/(480+320) = 0.6

China: p2 = 215/(215+285) = 0.43

Russia: p3 = 343/(343+357) = 0.49

United States: p4 = 640/(640+360) = 0.64

To test whether the proportion of adults using social media is equal for all four countries, we can use a chi-squared test of independence with the null hypothesis:

H0: P1 = P2 = P3 = P4

And the alternative hypothesis:

Ha: Not all population proportions are equal

We can calculate the expected frequencies for each cell assuming the null hypothesis is true, and use these to calculate the chi-squared test statistic:

Expected frequency for Yes-UK = (480+320) * (480+215+343+640) / (480+215+343+640+320+285+357+360) = 400

Expected frequency for No-UK = (320+480) * (480+215+343+640) / (480+215+343+640+320+285+357+360) = 400

Expected frequency for Yes-China = (215+285) * (480+215+343+640) / (480+215+343+640+320+285+357+360) = 320

Expected frequency for No-China = (285+215) * (480+215+343+640) / (480+215+343+640+320+285+357+360) = 320

Expected frequency for Yes-Russia = (343+357) * (480+215+343+640) / (480+215+343+640+320+285+357+360) = 350

Expected frequency for No-Russia = (357+343) * (480+215+343+640) / (480+215+343+640+320+285+357+360) = 350

Expected frequency for Yes-US = (640+360) * (480+215+343+640) / (480+215+343+640+320+285+357+360) = 500

Expected frequency for No-US = (360+640) * (480+215+343+640) / (480+215+343+640+320+285+357+360) = 500

Using these expected frequencies and the observed frequencies, we can calculate the chi-squared test statistic:

chi2 = sum((observed - expected)^2 / expected) = (480-400)^2/400 + (320-400)^2/400 + (215-320)^2/320 + (285-320)^2/320 + (343-350)^2/350 + (357-350)^2/350 + (640-500)^2/500 + (360-500)^2/500 = 33.49

The degrees of freedom for this test are df = (r-1)(c-1) = (2-1)(4-1) = 3, where r is the number of rows (2 for Yes/No) and c is the number of columns (4 for the countries).

We can then use a chi-squared distribution with 3 degrees of freedom to calculate the p-value for the test:

p-value = P(Chi2 > 33.49) = 0.00000031 (using a chi-squared calculator)

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Z = -2

Y = 5

is your answer

Answer:

Graph B

Step-by-step explanation:

The vertical intercept I am getting is (0,-1) and B is the only one with that point. Therefore, it should be B.

Answer:

okay...

Step-by-step explanation:

The tires and the traction control system work in tandem to ensure maximum traction and stability, minimizing the risk of traction loss and improving overall vehicle control and safety.

The two most important parts of a vehicle in preventing traction loss are the tires and the traction control system.

Tires: Tires are the primary point of contact between the vehicle and the road surface. The quality and condition of the tires greatly influence traction. Tires with good tread depth and appropriate tread pattern are essential for maintaining grip on the road. Tread depth helps to channel water, snow, or debris away from the tire, preventing hydroplaning or loss of traction. Additionally, tire pressure should be properly maintained to ensure even contact with the road. Choosing tires suitable for the specific driving conditions, such as all-season, winter, or performance tires, is crucial for optimal traction and handling.

Traction Control System: The traction control system is a vehicle safety feature that helps prevent the wheels from slipping or spinning on low-traction surfaces. It uses various sensors to monitor the speed and rotation of the wheels. If the system detects a loss of traction, it will automatically reduce engine power and apply braking force to the wheels that are slipping. By modulating power delivery and braking, the traction control system helps maintain traction and prevent wheel spin, especially in challenging conditions like slippery roads or during quick acceleration.

The tires and the traction control system work in tandem to ensure maximum traction and stability, minimizing the risk of traction loss and improving overall vehicle control and safety.

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The total number of ways to travel from Earth (4,1,0) to the Wookiee Smugglers' Trading Place (11,4,3) is 18

The Millennium Falcon can travel from Earth (4,1,0) to the Wookiee Smugglers' Trading Place (11,4,3) in a total of 18 different ways. The number of ways to travel can be determined using the concept of a combination with repetitions.

The formula for combinations with repetitions is (n+k-1)!/((n-1)!*k!). For this problem, we have n = 3 and k = 8, where n is the number of dimensions of space, and k is the total distance traveled along each axis. Therefore, the total number of ways to travel is (3+8-1)!/((3-1)!*8!) = 18.

The 18 different paths are determined by the combination of the 8 steps taken along each of the three axes, with each step being either positive or negative. Therefore, each path can be written as a 3-tuple (a,b,c) where a,b, and c are the total number of positive and negative steps taken along each of the three axes.

For example, one of the paths from (4,1,0) to (11,4,3) is (5,5,5), meaning that the Millennium Falcon would travel 5 positive steps along the x-axis, 5 positive steps along the y-axis, and 5 positive steps along the z-axis.

In conclusion, the total number of ways to travel from Earth (4,1,0) to the Wookiee Smugglers' Trading Place (11,4,3) is 18, determined using the concept of combinations with repetitions.

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Answer:

Add cheese to the Mac and you’ll be igh

Step-by-step explanation:

The values of x, y and z for the right triangle are: x = √6, y = 3, and z = √10 respectively.

The perpendicular height of the right triangle divides the triangle in two triangles with the same proportions as the original triangle.

√15/(y + 2) = y/√15 {opposite/adjacent}

y(y + 2) = (√15)² {cross multiplication}

y² + 2y = 15

y² + 2y - 15 = 0

by factorization;

(y - 3)(y + 5) = 0

y = 3 or y = -5

by Pythagoras rule:

(√15)² = x² + y²

15 = x² + 3²

x = √(15 - 9)

x = √6

z² = (√6)² + 2²

z = √(6 + 4)

z = √10

Therefore, the values of x, y and z for the right triangle are: x = √6, y = 3, and z = √10 respectively.

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127 is the answer

there are 5 even number of card in deck of card i.e 2,4,6,8,10. there are 4 acrds in each number of single number card.ie. spade,club,heart,diamond.

there is total number of card is 52.

and the trials goes on 330 times so.

the procedure is 5×4÷52×330= 126.9 which means 127 even cards.

If triangles 1 and 2 are similar then ratio of two sides is 25:52

A triangle is a polygon with edges and three terminals. It belongs to the basic geometric shapes. A triangle containing the angles A, B, and C is referred to by the term ABC.

Any three Euclidean points that are not collinear result in a triangle and a rectangle. In other words, any triangle is exclusively covered by that plane and is contained within that plane.

We know that any two triangles are similar by three axioms:

SSS , AAS , SAS or AAA axiom of similarity.

In the Euclidean plane, every triangle is contained within a single plane, but in higher-dimensional Euclidean spaces, this is no longer the case. This article addresses triangles in terms of geometry, more specifically the Euclidean plane, unless otherwise stated.

ratio of the sides of two triangle are in same ration when the triangles are similar

Now given ratio is 25:52, hence the ratio of the sides will be same.

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