Write the set A = {1, 2, 3, 4, 5, …} in set-builder form and descriptive form.
(please notice that it is an infinite set)

Answer:

r=3

Step-by-step explanation:

|r+2|=|3r-4|

-r-2=-3r+4

2r-2=4

2r=6

r=3

Answer:

28

Step-by-step explanation:

24/6=4 then take the 4 and multiply it by 7(other number in ratio) and you get 28

Answer:

the first one is (6.5,13)

the second one is (4,4)

Step-by-step explanation:

-2x-0=-13    

-2x=-13 divide -2 by -13

x=6.5

-2(0)-1y=-13

0-1y=-13

-1y=-13

13

so that gives you (6.5,13)

2x+2(0)=8

2x+0=8

2x=8 divide two by eight

x=4

2(0)+2y=8

0+2y=8

2y=8 divide two by eight

y=8

Answer:

15x+50=300

Step-by-step explanation:

Answer:

15x+50=300

Step-by-step explanation:

In a unimodal, symmetrical distribution, the mean, median, and mode are the same. In a unimodal, symmetrical distribution, all three measures of central tendency—the mean, median, and mode—are identical and have the same value.

In a unimodal, symmetrical distribution, the data is centered around a single peak and exhibits symmetry, meaning that the left and right sides of the distribution mirror each other. This type of distribution is often referred to as a symmetric distribution. In such cases, the mean, median, and mode all coincide and have the same value. The mean of a distribution is calculated by summing all the data points and dividing by the total number of data points. In a symmetrical distribution, the values on both sides of the peak contribute equally to the mean, resulting in a balanced distribution. The median is the middle value of the data when it is arranged in ascending or descending order. In a symmetrical distribution, the median is located at the peak of the distribution since the left and right sides are mirror images. Therefore, the median is the same as the mean and mode. The mode represents the most frequently occurring value(s) in the distribution. In a symmetrical unimodal distribution, the peak occurs at the center, and since the distribution is symmetrical, there is only one mode, which is located at the peak. Consequently, the mode is also the same as the mean and median.

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8+3=11

11=8(y+1)

11-8=3

3=y+1

3-1=2

2=y

Step-by-step explanation:

Answer:

the one with pink and white at the top, and the same one with purple and blue on the bottom

Step-by-step explanation:

The area model that represents 0.4 x 0.7 = 0.28 is the first graph, with pink color, purple colour, white colour and blue color.

The area model that represents 0.4 x 0.7 = 0.28 is determined by observing the graph with 0.4 row or column times row or column with 0.7.

The solution of the expression is calculated as follows;

0.4 x 0.7 = 0.28

So we can see that the first graph has 0.4 column and 0.7 row, creating the desired result need for the product of 0.4 and 0.7.

Thus, the area model that represents 0.4 x 0.7 = 0.28 is determined as the first graph with pink color, purple colour, white colour and blue color.

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Answer:

Option b is the answer.

Step-by-step explanation:

As you can see in the image you have given, the x values that are less than or equal to 4.5 are the elements of the solution set.

Answer:

y=4x+5

Step-by-step explanation:

You have your mx already: (mx is slope)

y=4x

And you have your b already: (b is y-intercept)

+5

Combine equations: (Solve)

y=4x+5

Hence, the correct answer is y=4x+5

As for the constant speed, the resultant force on the plane is 0N.

Constant:

Constant refers the specific number or a symbol that is assigned a fixed value.

Given,

A plane is flying through the sky at a constant speed. The thrust of the aeroplane (making it go forwards) is 100n. Air resistance is also acting on the plane.

Here we need to find the resultant (overall) force be on the plane.

As we know that, The plane is moving at constant speed.

According to the Newton's 1st law, the net external force on plane must be zero. Because of the thrust produced by propeller and the air resistance are equal and are in opposite directions to produce zero net force.

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Answer:

its A.

Step-by-step explanation:

Answer:

a

Step-by-step explanation:

Answer:

15 is the product.

Step-by-step explanation:

when you multiply, the answer is called the product.

The product of two given numbers is 15.

Multiplication is an operation that represents the basic idea of repeated addition of the same number. The numbers that are multiplied are called the factors and the result that is obtained after the multiplication of two or more numbers is known as the product of those numbers.

The given equation is 5×3=15.

The product of 5 and 3 is 15

Now, 5×3=15

15=15

LHS=RHS

Therefore, the product of two given numbers is 15.

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Answer:

126.5

Step-by-step explanation:

Answer:

75,76,84,85,87,88,90,91,92,94,99

Step-by-step explanation:

Answer:

BC = 96

Step-by-step explanation:

Since AD is an altitude, then ∠ ADC = 90° , thus

4x + 10 = 90 ( subtract 10 from both sides )

4x = 80 ( divide both sides by 4 )

x = 20

Thus

BC = BD + DC

     = 2x + 3x - 4

    = 5x - 4

    = 5(20) - 4 = 100 - 4 = 96

Answer:

Step-by-step explanation:

- 4x^3 / (- 4) = 32 / (- 4)

x should and cannot be negative or it shouldn't be for example (- x) = 90

cubic root (x^3) = cubic root (- 8)

x = cubic root (- 8)

x = 2i

what is "i"?

It is an imaginary number as you cannot square, cubic, or whatever root with a negative in it. so instead you must add "i" to remove the negative as a replacement and indicator that it was a negative number.

Answer:

Places in binary coding

1 - 2 - 4 - 8 - 16 - 32 - 64 - 128 - 256 - 512 - 1024 - 2048

2483 - 2048 = 435      there is 1 in the 2048 position

435 - 256 = 179    there is 1 in the 256 position

179 - 128 = 51        there is 1 in the 128 position

51 - 32 = 19         there is 1 in the 32 position

19 - 16 = 3           there is 1 in the 16 position

3 - 2 = 1            there is 1 in the 2 position

1 - 1 = 0             there is 1 in the 1 position

10011011 0011     would be the binary result

Check:

2048 + 0 + 0 + 256 + 128 + 0 + 32 + 16 + 0 + 0 + 2 + 1 = 2483

Answer:

The answer is number option 4

Answer:

Andre is: 13

Andre's brother is: 16

Andre's sister is: 11

Andre's mom is: 47

Add all their ages up and the total will be 87.

The area of the given figure which consists of a rectangle, square and a triangle = 28mm²

The area of the given figure can be calculated by addition of the various shapes that makes up the figure such as:

Area of the square= length× width

where length = 4mm

width = 3 mm

Area of the square = 4×3 = 12mm²

Area of the rectangule= length× width

where length = 1mm

width = 6mm

Area of the square = 1×6 = 6mm²

Area of triangle = 1/2 base ×height

where base = 6-1 = 5mm

height= 4mm

Area of triangle = 1/2 × 5 × 4 = 10 mm²

Therefore the area of the given figure = 12+6+10 = 28mm²

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The vertical line test helps us see that we have a function. Note how it is not possible to draw a single straight line through more than one point on the curve. Any x input leads to exactly one y output. This graph passes the vertical line test. Therefore it is a function.

The function is not one-to-one because the graph fails the horizontal line test. Here it is possible to draw a single straight horizontal line through more than one point on the curve. The horizontal line through y = 2 is one example of many where the graph fails the horizontal line test, meaning the function is not one-to-one.

The term "one-to-one" means that each y value only pairs up with one x value. Here we have something like y = 2 pair up with multiple x values at the same time. This concept is useful when it comes to determining inverse functions.

Answer:

C. Uniform circular motion is when a object travels on a circular path at a constant speed.

Answer:

33

Step-by-step explanation:

Please let me know if you want me to add an explanation as to why this is the answer. I can definitely do that, I just wouldn’t want to write it if you don’t want me to :)

Answer: 33

Step-by-step explanation: Write 220% as 220/100

Finding the fraction of a number is same as multiplying the fraction with the number 220/100 of 15

220/100 x 15

Therefore, the answer is 33

Answer:

Let's solve for x.

4x+2y=345x−6y

Step 1: Add -345x to both sides.

4x+2y+−345x=345x−6y+−345x

−341x+2y=−6y

Step 2: Add -2y to both sides.

−341x+2y+−2y=−6y+−2y

−341x=−8y

Step 3: Divide both sides by -341.

−341x

−341

=

−8y

−341

x=

8

341

y

Step-by-step explanation:

Answer:

Step-by-step explanation:

4x+2y=34;5x−6y=34

Step: Solve 4x+2y=34 for x:

4x+2y=34

4x+2y+−2y=34+−2y(Add -2y to both sides)

4x=−2y+34

4x 4 =−2y+34 4

(Divide both sides by 4)

x=−1/2y+17/2

Step: Substitute

−1/2y+17/2

solve for x in 5x−6y=34:

5x−6y=34

5(−1/2y+17/2)−6y=34

−17/2y+85/2=34(Simplify both sides of the equation)

−17/2y+85/2+−85/2=34+−85/2

(Add (-85)/2 to both sides)

−17/2

y=−17/2/−17/2y−17/2=−17/2/−17/2

(Divide both sides by (-17)/2)

y=1

Step: Substitute 1 for y in

x=−1//2y+17/2:

x=−1/2y+17/2

x=−1/2(1)+17/2

x=8 (Simplify both sides of the equation)

The improper fraction 7/8 has no value in the options given

To do this, we must divide the dividend by the divisor in order to change an improper fraction to a mixed number. After division, the acquired quotient becomes the whole numerals, the remainder becomes the new numerator, and the denominator remains the same, resulting in a mixed number.

To convert 7/8 into decimal number;

7/8 = 0.875

2 1/2 = 2.5

1 5/8 = 1.625

4% = 0.04

5 5/8 = 5.625

In the given options, none of them has a value of 7/8

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Open the numbers for easy grasp by just knowing the decimal position but also you can read directly from the numbers and checking their exponents.

1.(Jurassic) 208000000

2.(Silurian) 438000000

3.(Tertiary) 66400000

4.(Triassic) 245000000

245000000Silurian, Triassic, Jurassic and Tertiary.

245000000Silurian, Triassic, Jurassic and Tertiary. And yes you are smart! Don't sell yourself short!

245000000Silurian, Triassic, Jurassic and Tertiary. And yes you are smart! Don't sell yourself short! All the best!

The equation of the parabola in vertex form that passes through the points (-2, 4) and (1, 0):

y = -2(x + 1)^2 + 2

The vertex form of a parabola is y = a(x - h)^2 + k, where (h, k) is the vertex of the parabola. In this case, the vertex is (-1, 2), so we can write the equation as y = -2(x + 1)^2 + 2.

To find the vertex of the parabola, we can take the average of the x-coordinates of the two points, and then take the average of the y-coordinates of the two points. The average of the x-coordinates is (-2 + 1)/2 = -0.5, and the average of the y-coordinates is (4 + 0)/2 = 2. Therefore, the vertex is (-0.5, 2).

Once we know the vertex, we can find the value of a by substituting the vertex coordinates into the vertex form of the parabola. Substituting (-0.5, 2) into the equation y = a(x - h)^2 + k, we get 2 = a(-0.5 - (-1))^2 + 2. Simplifying, we get 2 = a(0.25) + 2. Solving for a, we get a = -2.

Plugging in a = -2 into the vertex form of the parabola, we get y = -2(x + 1)^2 + 2. This is the equation of the parabola in vertex form.

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The equation of the parabola in vertex form that passes through the points (-2, 4) and (1, 0):

y = -2(x + 1)^2 + 2

The vertex form of a parabola is y = a(x - h)^2 + k, where (h, k) is the vertex of the parabola. In this case, the vertex is (-1, 2), so we can write the equation as y = -2(x + 1)^2 + 2.

To find the vertex of the parabola, we can take the average of the x-coordinates of the two points, and then take the average of the y-coordinates of the two points. The average of the x-coordinates is (-2 + 1)/2 = -0.5, and the average of the y-coordinates is (4 + 0)/2 = 2. Therefore, the vertex is (-0.5, 2).

Once we know the vertex, we can find the value of a by substituting the vertex coordinates into the vertex form of the parabola. Substituting (-0.5, 2) into the equation y = a(x - h)^2 + k, we get 2 = a(-0.5 - (-1))^2 + 2. Simplifying, we get 2 = a(0.25) + 2. Solving for a, we get a = -2.

Plugging in a = -2 into the vertex form of the parabola, we get y = -2(x + 1)^2 + 2. This is the equation of the parabola in vertex form.

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