The diameter of a coin is 2 cm. what is the circumference of the coin​
Help me please

Every day, the number of views of the video increases by 80% of the previous day's views.

Every day, the number of views of the video increases by a certain percentage. To find the daily percent change in the views, we can use the formula for percent change, which is given by:

percent change = ((new value - old value) / old value) * 100

In this case, the old value is the number of views at the start, which is 500, and the new value is the number of views after one day, which is given by:

V(1) = 500*(1.8)^1 = 900

Substituting these values into the formula, we get:

percent change = ((900 - 500) / 500) * 100 = 80%

In other words, for every day that passes, the number of views of the video is multiplied by a factor of 1.8.

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Answer:

A

Step-by-step explanation:

7 x 1/3 = 7/3

Answer:

its 4

Step-by-step explanation:

got a 100 on the test

Answer:

D

Step-by-step explanation:

Answer:

C

Step-by-step explanation:

y=mx+b m=slope b=y-intercept, y-int: 4 slope: 3/1 but can just be put as 3. y=3x+4 bc it's a positive slope with a positive y-int.

The number that corresponds to the null hypothesis and the alternative hypothesis will be 3 and 6 respectively.

Specify the correct number from the list below that corresponds to the appropriate null and alternative hypotheses for this problem.

It should be noted that the null hypothesis suggests that there's no statistical relationship between the variables.

The alternative hypothesis is different from the null hypothesis as it's the statement that the researcher is testing.

In this case, the number that corresponds to the null hypothesis and the alternative hypothesis will be 3 and 6 respectively.

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Answer: the attachment wont load

Step-by-step explanation:

Answer:

C,

Step-by-step explanation:

This is because in a parallelogram the opposite angles are supposed to be congruent showing that when you draw line from opposite ends of the angles they will bisect at the middle of the parallelogram.

If you don't understand my explanation, you can comment and I make it more clear.

Answer: 2.7mm

Step-by-step explanation:

The formula for the circumference of a circle is given as 2πr. In thkw case, thw circumference is 17mm.

Therefore, 2πr = 17

2 × 3.14 × r = 17

6.28r = 17

r = 17/6.28

r = 2.7mm

Therefore the radius of the circle is 2.7mm

Answer:...

Step-by-step explanation:

Answer:

See below

Step-by-step explanation:

4.8461873 x 10^ 7

Answer:

Step-by-step explanation:

Answer:

M = 61

nm = 31

kn = 45

L = 119

Step-by-step explanation:

its a parallelogram so everything is obvious

The solution to the expression is -x² + 2ix²

From the question, we have the following parameters that can be used in our computation:

a = x

b = -1 + 2i

The expression to calculate is given as

a^2 * b

This can be properly expressed as

a² * b

Substitute the known values in the above equation, so, we have the following representation

a² * b = x² * (-1 + 2i)

Open the brackets

a² * b = -x² + 2ix²

Hence, the solution is -x² + 2ix²

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The height of the kite above Brian's head is approximately 186 meters.To determine the height of the kite above Brian's head, we can use trigonometry and the given angle of elevation.

Let's consider the right-angled triangle formed by the kite string, the height of the kite, and the horizontal distance from Brian to the kite. The angle of elevation, 70°, is the angle between the horizontal ground and the kite string. In this triangle, the opposite side represents the height of the kite, and the hypotenuse represents the length of the kite string, which is 65 meters. Using the trigonometric function tangent (tan), we can set up the following equation: tan(70°) = height / 65. Solving for the height, we have: height = tan(70°) * 65. Calculating this value, we find: height ≈ 185.55.

Rounding this to the nearest whole number, the height of the kite above Brian's head is approximately 186 meters.

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The study used a sample of n = 15 participants is true

The given information indicates that the researcher has found a significant treatment effect based on their analysis.

The t(15) value specifies that a t-test was conducted with a sample size of 15 participants, resulting in 15 degrees of freedom.

The obtained t-value of -2.56 reflects both the magnitude and direction of the treatment effect.

To further interpret the significance of the treatment effect, the reported p-value of less than .05 is crucial.

This indicates that the probability of observing such a significant effect purely by chance is less than 5%.

In other words, the results suggest that the treatment's impact on the outcome being examined is statistically significant, providing evidence for a genuine relationship between the treatment and the observed effect.

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Answer

x = 12, y = 5

x = -13, y = -20

Step by step explanation:

You have two equations, and you have to find a way to merge them.

x - y = 7 —— {1}

From {1}, y = x - 7 —— {2}

x² + y = 149 —— {3}

Rep {2} in {3}

x² + y = 149

x² + (x-7) = 149

x² + x - 156 = 0

(x-12) (x+13) = 0

x = 12 and x = - 13

When x = 12, y = 12 - 7 = 5

(12, 5)

When x = - 13, y = - 13 - 7 = - 20

(-13, - 20)

Answer:

4 cm

Step-by-step explanation:

Given 2 similar figures with sides in ratio a : b , then

ratio of areas = a² : b²

let n be the length of the smaller one , then

ratio of sides = n : 10

ratio of areas = n² : 10² = n² : 100

Using proportion

( \(\frac{ratio}{area}\) )

\(\frac{n^2}{24}\) = \(\frac{100}{150}\) = \(\frac{2}{3}\) ( cross- multiply )

3n² = 48 ( divide both sides by 3 )

n² = 16 ( take the square root of both sides )

n = \(\sqrt{16}\) = 4

length of the smaller one is 4 cm

Answer:

The Car.

Step-by-step explanation:

We need to find the unit rate for each vehicle to figure out who is traveling faster or slower.

Car: 600/20 = 30 ft per second

Motorcycle: 300/12 = 25 ft per second

So, the Car is faster

If each pair of set has 6 glasses. Then the minimum number 59 of sets of glasses, Latanya should buy.

A connection between two expressions or values that is not equal to one another is referred to as "inequality" in mathematics. The inequality can be resolved by adding the same amount to each side, subtracting the same amount from each side, multiplying or dividing each side by the same positive integer, and more. If you multiply or divide either side by a negative value, you must flip the inequality sign.

Given, The restaurant needs at least 739 glasses.

There are currently 390 glasses.  

That means, 739 - 390 = 349 glasses.

Latanya needs to order 349 glasses for the restaurant where she works.

If each set on sale contains 6 glasses.

Let x be the minimum numbers of glasses Latanya needs to buy.

That means,

x = 349/6

x = 58. 17

The inequality

x  < 59.

Therefore, Latanya needs to order minimum 59 sets of glass.

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There are 4 3-coin combinations if we can choose from nickels, dimes, quarters, and half-dollars

The coins to select from are nickels, dimes, quarters, and half-dollars.

So, we have:

Coins (n) = 4

The number of coin to select is:

Coin (r) = 3

The coin combination is then calculated using:

Combination = ⁴C₃

Apply the combination formula

Combination = 4

Hence, there are 4 3-coin combinations if we can choose from nickels, dimes, quarters, and half-dollars

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Answer:

Let's solve your equation step-by-step.

|−x−15|=|5x−23|

Solve Absolute Value.

|−x−15|=|5x−23|

We know either−x−15=5x−23or−x−15=−(5x−23)

−x−15=5x−23(Possibility 1)

−x−15−5x=5x−23−5x(Subtract 5x from both sides)

−6x−15=−23

−6x−15+15=−23+15(Add 15 to both sides)

−6x=−8

−6x

−6

=

−8

−6

(Divide both sides by -6)

x=

4

3

−x−15=−(5x−23)(Possibility 2)

−x−15=−5x+23(Simplify both sides of the equation)

−x−15+5x=−5x+23+5x(Add 5x to both sides)

4x−15=23

4x−15+15=23+15(Add 15 to both sides)

4x=38

4x

4

=

38

4

(Divide both sides by 4)

x=

19

2

Check answers. (Plug them in to make sure they work.)

x=

4

3

(Works in original equation)

x=

19

2

(Works in original equation)

Answer:

x=

4

3

or x=

19

2

Step-by-step explanation:

Answer:

x = 4/3

Step-by-step explanation:

|-x-15 | = | 5x - 23 |

take square root

√-x-15 = √ 5x - 23

than take square

(√-x-15 )² = (√ 5x - 23)²

than,

-x -15 = 5x - 23

-15 = x + 5x - 23  ( add x on both sides )

-15 + 23 = 6x  ( add 23 on both sides )

8 = 6x

8/6 = x   (divide 6 on both sides )

x = 4/3

Answer:

D) 3x + 15 ≥ 300

Step-by-step explanation:

The rectangle must have a area of AT LEAST 300 square ft, or 300 or greater. Use the greater than or equal sign: ≥ 300.

Note that your are solving for the area, and that this shape is a rectangle. To get the area of the rectangle, simply multiply length and width:

(3) * (x + 5) = Area of rectangle.

Distribute the 3 to all terms:

3(x + 5) = 3x + 15 = Area of rectangle.

Put the two parts together:

3x + 15 ≥ 300.

~

Answer:

The last answer.

Step-by-step explanation:

The area of a rectangle is

Area=(width)*(length)

If we substitute the 2 given values into the formula we will get

Area= 3(x+5)

=3x+15

Since it's asking that it has to be "at least 300", it's saying that the equation has to be 300 or more.

3x+15>(less than or equal to) 300.

The slope of the line which is perpendicular to the given line 3x+18y=108 is (6).

We already know the equation of a line in slope intercept form y = mx + b and we also know that perpendicular lines that have slopes which are negative reciprocals of each other.

Given a line 13x + 18y=108, this slope intercept form can be written as,

3x + 18y = 108

18y = 108 - 3x

y = (108 /18) - (3/18)x.

y = (6) - 1x/6.

y = -(1/6)x + 6.

Hence the slope of the given line is (-1/6), thus the slope of the line which is perpendicular is (6).

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Answer:

x=40.375

Step-by-step explanation:

Since HYV and AYB are similar, we know that the sides in each of the triangles with have the same ratio to each of their corresponding sides.

For example, YV/YB=YH/YA.

Now we have to find the ratio of the sides which can be done using the lengths of segments YB and YV. YB=16 YV=16+22=38 38/16=2.375

2.375 is our ratio.

Next we are going to find the length of YH so we can determine x.

YA=17 YH=17*2.375=40.375

The length of side YH=40.375 which is equal to x.

Answer:

Step-by-step explanation:

-(3x-7)=43.

Distribute the negative properly

-3x+7=43

Then subtract 7 from both sides

-3x=36

Then divide by -3 to get your answer

x=-12

Area of the shape formed by joining triangle , trapezium and rectangle with height 3.5cm is equal to 6.25cm².

As given in the question,

Height of the shape = 3.5cm

length of the rectangle =3cm

Base of a triangle= 8mm

                           = 0.8cm

Parallel sides of the trapezium

side1 = 0.8cm

side 2= 3cm

Let x represents the height

Ratio of the height of rectangle ,trapezium and triangle =2:3:2

2x +3x+2x =3.5

⇒7x =3.5

⇒x =0.5

Height of rectangle =2×0.5

                             = 1cm

Height of trapezium =3×0.5

                               = 1.5cm

Height of the triangle =2×0.5

                                 = 1cm

Area of triangle = (1/2)× 0.8 ×1

                        = 0.4cm²

Area of trapezium = (1/2) ×(0.8+3)×1.5

                            = 2.85cm²

Area of rectangle = 3 ×1

                            =3cm²

Area of the shape =0.4 +2.85 +3

                            = 6.25cm²

Therefore, area of the shape formed by joining triangle , trapezium and rectangle with height 3.5cm is equal to 6.25cm².

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The surface area of the pylon, obtained by considering the pylon as a composite figure consisting of a prism and a pyramid is 1824 square inches

A composite figure is a figure that consists of two or more regular or simpler figures.

The surface area of the pylon can be considered as a composite figure consisting of a square prism and a pyramid

The surface area of the accessible part of the square pyramid is; A = 2 × (30 × 12 + 30 × 12 + 12 × 12) - 12 × 12 = 1584

The surface area of the square pyramid part is 1584 in²

The surface area of the prism, A = 4 × (1/2) × 12 × 10 = 240

The surface area of the prism is 240 in²

The surface area of the pylon is therefore;

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Based on the question you provided, we can estimate the distance an athlete can jog in 2 hours given the information that the average person can walk 9/10 mile in 1/3 hour and the athlete can jog 3 times that speed.

If the average person can walk 9/10 mile in 1/3 hour, then their average speed would be:

(9/10) miles ÷ (1/3) hour = (9/10) ÷ (1/3) ≈ 2.7 miles per hour

Since the athlete can jog 3 times that speed, their average jogging speed would be:

2.7 × 3 = 8.1 miles per hour

Therefore, in 2 hours, the athlete can roughly jog a distance of:

distance = speed × time = 8.1 miles/hour × 2 hours = 16.2 miles

So we can estimate that the athlete can jog a distance of 16.2 miles in 2 hours.


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from your boy on top

Answer:

He earned $852 from the gumballs he sold.

Step-by-step explanation:

It says he sold 20 boxes and there are 45 pieces of candy in each box so you multiply 20 and 45 and you will get 900 so they had sold 900 pieces of candy. And from the lollipops he earned $948 the you divided by 2 cause that is how much each piece cost and that gets you 474, which are how many lollipops he sold. So now that you have the amount of lollipops he sold you have to subtract that from the total amount of candy he had, which is 900, so minus 474 from that and you get 426 pieces of gum that were sold and then multiply that by 2 because it cost 2 dollars for each piece and you get $852.