I need help with this question???

Answer:

Let's verify is the corresponding sides have same ratio:

Ratios:

The ratios are same, so the triangles are similar

The scale factor (ΔABC to ΔXYZ) is 2/7 (or ΔXYZ to ΔABC is 7/2 = 3.5)

To find the volume of a right circular cone, we can use the formula:

V = (1/3) * π * r^2 * h

where V is the volume, r is the radius of the base, and h is the height of the cone.

Given that the height of the cone is 9 m and the base has a circumference of 19.6 m, we can find the radius of the base.

The circumference of a circle is given by the formula:

C = 2 * π * r

Substituting the given circumference of 19.6 m into the formula, we can solve for the radius:

19.6 = 2 * 3.14159 * r

Dividing both sides by 2 * 3.14159:

r = 19.6 / (2 * 3.14159)

r ≈ 3.1249 m

Now, substituting the values of the radius (approximately 3.1249 m) and height (9 m) into the volume formula:

V = (1/3) * 3.14159 * (3.1249)^2 * 9

Calculating the volume:

V ≈ (1/3) * 3.14159 * 3.1249^2 * 9

V ≈ 28.2669 cubic meters

Rounding to the nearest tenth of a cubic meter, the volume of the right circular cone is approximately 28.3 cubic meters.\(\)

Sonny get 240=240 because  the cross products of the proportion are equal.

Proportion : Two ratios are said to be in proportion when the two ratios are equal.

For Example , If Smith walks 5 km in 1 hour then he will walk 25 km in 5 hours. denoted by

\(\frac{5}{1} =\frac{25}{5} \\ \\ 5=5\).

According to the given question the equation can be written as

\(\frac{16}{x} =\frac{48}{15}\)

Sonny substituted 5 for x in the proportion , the equation can be written as

\(\frac{16}{5} =\frac{48}{15} \\ \\ Doing .the .cross.product\\ \\ 16*15=48*5\\ \\ 240=240\)

Therefore , Sonny get 240=240 because  the cross products of the proportion are equal.

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The mean squared error equals to c.) 6.

The mean squared error is a measure of the accuracy of a forecast model, indicating the average squared difference between the forecasted values and the actual values in a time series. In this case, a three-period moving average forecast is used.

To compute the mean squared error, we need to calculate the squared difference between each forecasted value and the corresponding actual value, and then take the average of these squared differences.

Using the given time series values and the three-period moving average forecast, we can calculate the squared differences as follows:

(23 - 17)² = 36

(17 - 17)² = 0

(17 - 26)² = 81

(26 - 11)² = 225

(11 - 23)² = 144

(23 - 17)² = 36

(17 - 17)² = 0

Taking the average of these squared differences, we get:

(36 + 0 + 81 + 225 + 144 + 36 + 0) / 7 = 522 / 7 ≈ 74.57

Therefore, the mean squared error is approximately 74.57.

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15 : 5 = 15 : 5

15 : 5 =  1 : 0.33333333333333

=  3 : 1

=  3 : 1

15

15 + 5

= 75%

Answer:

B

Step-by-step explanation:

15:5 compares wins to losses and 15:22 compares wins to games.

Answer:

y = 6,2,0,0,2,6

hope this helps

Step-by-step explanation:

Answer:

4500

Step-by-step explanation:

The first digit can't be 0. so it will be a number from 1000 to 9999. That's a total of 9000 numbers (9999-1000+1=9000). Since the last digit must be an even number that is one half of the 9000 numbers which is 4500.

Answer:

it's 2.5 inches cool profile pic to

Step-by-step explanation:

Answer:  (i) 1/221     (ii) 11/221      (iii) 95/663        (iv) 1/663

Step-by-step explanation:

(i) A deck of cards contains 4 Kings out of 52 total cards

1st draw: 4 Kings out of 52 total cards → 4/52 = 1/13

2nd draw: 3 remaining Kings out of 51 total remaining cards  →  3/51 = 1/17

  1st Draw                   2nd Draw                  Outcome         Probability

 King: P(K) = 1/13        King: P(K₂/K₁) = 1/17     King, King       (1/13) x (1/17) = 1/221

*************************************************************************************************

(ii) A deck of cards contains 4 Jacks, 4 Queens, & 4 Kings out of 52 total cards

1st draw: 12 Face cards out of 52 total cards → 12/52 = 3/13

2nd draw: 11 remaining Face cards out of 51 total remaining cards  →  11/51

1st Draw                 2nd Draw                  Outcome       Probability

 Face: P(F) = 3/13    Face: P(F₂/F₁) = 11/51   Face,Face     (3/13) x (11/51) = 11/221

*************************************************************************************************

(iiI) A deck of cards contains 26 black cards out of 52 total cards but there are 2 black Jacks, 2 black Queens, and 2 black Kings.

1st draw: 20 Black (not Face) cards out of 52 total cards → 20/52 = 5/13

2nd draw: 19 remaining Black (not Face) cards out of 51 total remaining cards  →  19/51

  1st Draw                 2nd Draw                       Outcome   Probability

Black: P(B~) = 5/13   Black: P(B~₂/B~₁) = 19/51    B~,B~    (5/13) x (19/51) = 95/663

*************************************************************************************************

(ii) A deck of cards contains 4 Aces out of 52 total cards

1st draw: 4 Aces out of 52 total cards → 4/52 = 1/13

2nd draw: 1 Queen of Hearts out of 51 total remaining cards  →  1/51

  1st Draw                 2nd Draw                   Outcome         Probability

 Ace: P(A) = 1/13      Qh: P(Qh₂/A₁) = 1/51   Ace,Queen(h)   (1/13) x (1/51) = 1/663

Answer:

I found this : graph the inequality by finding the boundry line, then shading the appropriate area

8 > 10p^2h-8c/5   (draw a line under the >)

Step-by-step explanation:

Answer:

it would be D) (30 x 2) + (6 x 2)

Let's assume that the initial velocity of the frog is zero. Using the kinematic equations of motion, the height of the frog at any time can be determined as given below.
s = ut + 1/2at², where s is the distance, u is the initial velocity, a is the acceleration, and t is the time taken.
Here, s = 1.24 m - h (since the initial height of the frog is 1.24 m), u = 0 (since the initial velocity of the frog is zero),
a = -9.8 m/s² (the acceleration due to gravity), and t is the time taken. Let's assume that the frog reaches the ground after t seconds. Hence, 4.3 ft = 1.3 m

The height of the frog when it is at 4.3 ft above the ground can be written as: 1.3 m = -4.9t² + 1.24 m
By solving the above equation for time, we get, t = 0.575 s. The time taken by the frog to reach the ground is 0.575 seconds. Therefore, the horizontal distance traveled by the frog can be determined as: d = vt, where d is the horizontal distance, v is the velocity of the frog, and t is the time taken. v can be determined using the formula:
v = u + at. Here, u = 0 (since the initial velocity of the frog is zero), a = -9.8 m/s² (the acceleration due to gravity), and t is the time taken. Hence, v = -9.8 x 0.575 = -5.63 m/s. Thus, the horizontal distance traveled by the frog is given by:
d = vt = -5.63 x 0.575 = -3.24 m. Since the distance cannot be negative, the horizontal distance traveled by the frog is 3.24 m. Using the same method, we can determine the horizontal distance traveled by the frog in the other direction. Therefore, the two distances from the base of the stump where the frog was 4.3 feet above the ground after it jumped are 3.24 m and -3.24 m.

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Component 3 must be started on day 197 to meet the delivery date of day 200.

To illustrate the backward schedule, we need to start from the delivery date (day 200) and work our way backward, taking into account the lead times and dependencies of each operation.

(a) Backward schedule:

Operation    |  Work Center  |  Time (hours)  |  Start Day

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

Final Assembly |   Work Center 1  |        1       |     200

Sub-assembly 1 |   Work Center 2  |        2       |     199

Component 4     |   Work Center 3  |        3       |     197

Component 2     |   Work Center 4  |        4       |     196

Component 3     |   Work Center 5  |        3       |     ????

(b) To identify when component 3 must be started to meet the delivery date, we need to consider its dependencies and lead times.

From the backward schedule, we see that component 3 is required for sub-assembly 1, which is scheduled to start on day 199. The time required for sub-assembly 1 is 2 hours, which means it should be completed by the end of day 199.

Since component 3 is needed for sub-assembly 1, we can conclude that component 3 must be started at least 2 hours before the start of sub-assembly 1. Therefore, component 3 should be started on day 199 - 2 = 197 to ensure it is completed and ready for sub-assembly 1.

Hence, component 3 must be started on day 197 to meet the delivery date of day 200.

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Answer: b. 1923

Step-by-step explanation:

The consecutive page no. are 126 and 127.

An example of a run of consecutive integers is 1, 2, 3, 4. Another illustration is 7, 8, and 9. An integer sequence is a set of numbers where each term is one more than the term before it.

Continually following one another, from smallest to greatest, are consecutive numerals. For instance, the sequence of the numerals 1, 2, 3, 4, 5, and so forth.

The next two numbers are (n + 1) and (n + 2) if n is an integer. Take 1 for n as an example. Its subsequent numbers can be read as (2 and 3), or as (1 + 1) and (1 + 2).

let the consecutive page numbers be x and x+1

according to question ,

          x + x + 1 = 253

          2x = 252

            x = 126

so the consecutive page numbers are 126 and 127.

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Based on the concept of measurement, the decimal equivalent is 0.75.

To start, it is important to understand that time is a form of measurement that can be expressed in a variety of ways, including hours, minutes, seconds, and even fractions of seconds. Decimals are also a common way to express time, especially in situations where precision and accuracy are important.

To convert 45 minutes into a decimal, you need to first understand the relationship between minutes and hours.

There are 60 minutes in one hour, which means that 45 minutes is equivalent to 0.75 hours

=> (45/60 = 0.75).

Once you have this decimal equivalent, you can express it in a variety of ways, depending on the context.

If you were measuring time in terms of a workday (i.e. 8 hours), 0.75 hours would be equal to 45 minutes. On the other hand, if you were measuring time in terms of a percentage of an hour (i.e. 100%), 0.75 hours would be equal to 75%.

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Answer:

see explanation

Step-by-step explanation:

Given

\(\frac{20}{\sqrt{2} }\)

To rationalise the denominator multiply the numerator and denominator by \(\sqrt{2}\), that is

\(\frac{20(\sqrt{2}) }{\sqrt{2}(\sqrt{2}) }\)

= \(\frac{20\sqrt{2} }{2}\)

= 10\(\sqrt{2}\)

Answer:

10 7/40

Step-by-step explanation:

5 4/5 + 4 3/8

4/5 = 32/40

3/8 = 15/40

5 32/40 + 4 15/40 = 9 47/40 = 9 + 1 7/40 = 10 7/40

Answer:

6 7/40

Step-by-step explanation:

That’s the answer and I’m sure cuz I did the math, also have a good night!

Answer:

Your answer will be (-5,7).

Step-by-step explanation:

Answer:

(-7,5)

Step-by-step explanation:

The correct statement that assigns the value 1.667 to the array "fractions" at element 9 is not included in the options given.

It is important to note that arrays start counting from 0, so the 9th element would be at index 8. If there was a statement like "fractions[8] = 1.667", then that would be the correct answer.

However, since none of the options include the correct index, none of them are assigning the value 1.667 to the 9th element of the "fractions" array.

None of the options have the index of 9, and therefore cannot assign a value to that specific element

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a)There are \(2^m^n\) possible relation

b)Similarly \(n^m\)

c)\(\frac{n^m}{2^m^n}\)

a)Set A has m elements and set B has n elements

Firstly determine the number of elements A*B by using the multiplication rule

Number of elements\(=A*B=m*n=mn\)

For each element, \(A*B\) we have two option

First element 2 ways

Second element 2 ways

mn element 2 ways

By using the multiplication rule

\(2*2*2......=2^m^n }\)

Then there are \(2^m^n\) possible relation

b)Similarly \(n^m\)

c)\(\frac{n^m}{2^m^n}\)

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Answer:

280 pages

Step-by-step explanation:

There are 14 days in 2 weeks  ( 7 days in  1 week )

20 pages a day * 14 days = 280 pages

Answer: David reads 280 pages altogether.

Step-by-step explanation: If David reads 20 pages a day, and there are 7 days in a week, then he will read 140 pages in one week (20 x 7). Since the problem asks for how many pages he read in two weeks, then you can multiply 140 by 2 and get 280, which is your answer. Hope this helped :)

Answer:

113.1 cm³

Step-by-step explanation:

diameter = 2 X radius

Volume of sphere = (4/3) X π X r ³

= (4/3) π (3)³

= 36π

= 113.1 cm³ to nearest tenth

Answer:

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

f(x)=mx+b. The function's value is f(x). The line's slope is m. When x is equal to 0, the function's value is equal to b.

The subject of mathematics includes quantities and their variations, equations and related structures, forms and their locations, and places where they can be found. The term "function" refers to the relationship between a set of inputs, each of which has an associated output. A relationship between inputs and outputs in which each input leads to a single, distinct result is known as a function.  Usually, f is used to denote functions (x). input is an x. There are four main types of functions accessible. based on the following factors: on functions, one-to-one functions, many-to-one functions, within functions, and on functions.

iven

f(x)=mx+b. The function's value is f(x). The line's slope is m.

When x is equal to 0, the function's value is equal to b, which is also the coordinate at where the line in the coordinate plane crosses the y-axis.

The x-value coordinate's is given by x.

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The area covered by the pool and the cement walkway is 304  square feet. The width of the walkway would be 5 feet

The area of the rectangle is the product of the length and width of a given rectangle.

The area of the rectangle = length × Width

Let x be represent the width of the walkway.

The pool measures 25 ft by 10ft . If the walkway must have a uniform width around the entire pool, then the total length of the pool and the walkway =  25+ x + x = 25 + 2x

The total width of the pool and the walkway = 10 + x + x = 10 + 2x

The area covered by the pool and the cement walkway is 304  square feet. This means that;

(25 + 2x)(10 + 2x) = 304

250 + 50x + 20x + 4x^2 = 304

4x^2 + 70x + 250 - 304 = 0

4x^2 + 70x - 54 = 0

x(x + 20) - 5(x + 20) = 0

(x - 5)(x + 20) = 0

x = 5 or x = - 20

Thus The width cannot be negative.

Therefore, the width of the walkway is 5 feet.

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