Can y’all help me plz

Answer:

1,384 is a rational number.

Answer:

1,384 is a rational number because it can be expressed as the quotient of two integers: 1384÷ 1

Also,

Examples of Irrational:

[tex]\sqrt{2} = 1.41421356237[/tex]

√3 = 1.73205080757

So irrational number are not repeating decimals but they don't have an exact answer either.

* Hopefully this help :) Mark me the brainliest:)!!

The answer is:

[tex]Area_{circle}=\pi *radius^{2}[/tex]

or

[tex]Area_{circle}=\pi *(\frac{diameter}{2})^{2}[/tex]

We can calculate the area of any circle using the following formula:

[tex]Area_{circle}=\pi *radius^{2}[/tex]

Where,

π, is a constant used to calculate the area of the circle.

radius, is the distance from the center to any point of the circle.

Also, we have that:

[tex]radius=\frac{diameter}{2}[/tex]

So, we can rewrite the equation by the following way:

[tex]Area_{circle}=\pi *(\frac{diameter}{2})^{2}[/tex]

Have a nice day!

Answer:

Use formula:

[tex]Area of circle = \pi (radius)^2 =\pi (r)^2[/tex]

Step-by-step explanation:

We need to find about how to calculate the area of a circle.

And match with the given choices. Where given choices are:

Area of a circle is equal to the diameterdiameter

squaredradiusradius squared times diameterheightpiwidth.

I'm not sure what exactly you have typed as choices are not written in proper way.

But I can still answer that.

You just need to apply formula of the area of circle which is given by:

[tex]Area of circle = \pi (radius)^2 =\pi (r)^2[/tex]

Answer:

15 apples

Step-by-step explanation: if you need 10 apples for two quarts, then you need 5 for 1. add those together and you get 15

Answer: 8.4 inches.

Step-by-step explanation:

We know that the circumference of a circle can be calculated with this formula:

[tex]C=2\pi r[/tex]

Where "r" is the radius of the circle.

We know that the circular cake (whose radius is 8 inches) is cut from the center into 6 equal pieces. Then, you need to divide the circumference of this circular cake by 6 to find the width of the outer edge of each piece of cake.

Therefore, this is (to the nearest tenth of an inch):

[tex]C=\frac{2\pi (8in)}{6}\\\\C=8.4in[/tex]

The width of the outer edge of each piece of cake  8.4 inches.

SOLUTION:

Given, a circular cake with a radius of 8 inches is cut from the center into 6 equal pieces. We have to find the width of the outer edge of each piece of cake.

We know that the circumference of a circle can be calculated with this formula: [tex]2\pi r[/tex] where "r" is the radius of the circle.

We know that the circular cake (whose radius is 8 inches) is cut from the center into 6 equal pieces.

Then, you need to divide the circumference of this circular cake by 6 to find the width of the outer edge of each piece of cake.

Therefore, this is (to the nearest tenth of an inch):

[tex]\text { Width }=\frac{2 \pi \times 8}{6}=\frac{\pi \times 8}{3}=\frac{8 \pi}{3}=8.377[/tex]

Hence, the cake piece is 8.4 inches wide.

Answer:

b. Well, I've gotten y=5x+110 for the line of best fit.

To do so, create a line that fits best for a scatter plot. It's best if it's in the middle and hits most coordinates. So y=5x+110 is a good line.

c. To do so, insert 15 into x and solve from there.

y=5(15)+110

y=75+110

y=185

That is the number of people that might attend the reunion on the 15th year.

ANSWER

y=1

EXPLANATION

If (-1, y) lies on the graph of

[tex]y = 3^{x+1}[/tex]

then it must satisfy its equation:

We substitute x=-1 in to the equation to get:

[tex]y = 3^{-1+1}[/tex]

[tex]y = 3^{0}[/tex]

Any non-zero number exponent 0 is 1.

This simplifies to:

y=1

Therefore when x=-1, y=1

The third choice is correct.

Answer:

The correct answer option is 1

Step-by-step explanation:

We are given the following equation and we are to find the value of y when the point (-1, y) lies on the graph of the given equation:

[tex] y = 3 ^ { x + 1 } [/tex]

So we will substitute the given value of x from the point (-1, y) in the equation to get y:

[tex]y = 3^{-1+1}[/tex]

[tex]y=3^0[/tex]

We know that anything with power zero is equal to 1.

Therefore, y = 1.

Folder = 1.25$

Notebook = 4.5 $

Folder =x

Notebook = y

The cost of one folder if the prices did not change between the days, for this case, is $1.25

You can represent the unknown amounts by the use of variables. Follow whatever the description is and convert it one by one mathematically. For example if it is asked to increase some item by 4 , then you can add 4 in that item to increase it by 4. If something is for example, doubled, then you can multiply that thing by 2 and so on methods can be used to convert description to mathematical expressions.

Given that:

To find:

Cost of one folder.

Assume that:

Then, from the given condition, we get:

Amount spent in buying 3 folders and 1 notebook = 3x + 1y dollars = $8.25

And, amount spent in buying 2 folders and 3 notebook = 2x + 3y dollars = $16

Thus, we get two equations as:

[tex]3x + 1y = 8.25\\2x + 3y = 16[/tex]

From the first equation, getting 'y' in terms  of 'x', we get:

[tex]y = 8.25 - 3x[/tex]

Substituting this in second equation, we get:
[tex]2x + 3(8.25 - 3x) = 16\\2x +24.75 -3x = 16\\(2-9)x = 16 - 24.75\\-7x = -8.75\\7x = 8.75\\x = 8.75/7 =1.25 \: \rm dollars[/tex]

As we have Cost of one folder = $x

Thus, the cost of one folder if the prices did not change between the days, for this case, is $1.25

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The formula for volume of a cylinder is:

V = π r^2 h

r = 3 and h = 6

V = π * 3^2 * 6

V = π * 9 * 6

V = 54π units^3

Answer: I’m gonna say 169... this one confused me a little bit

Answer:

both

Step-by-step explanation:

b/c they both divide the square into equidistant segments

Answer: both

Step-by-step explanation:

divide the square into two equal sections

Answer: 3 points.

Step-by-step explanation: 3 x 2 is 6, plus 3 is 9

Answer:

6840

Step-by-step explanation:

Here, the order matters (1st, 2nd, and 3rd), so we need to use permutations.

There are 20 people who can get in first place.  After that, there are 19 people who can get in second place.  Finally, there are 18 people who can get in third place.  So:

20 * 19 * 18 = 6840

Number of the  ways can they finish in first, second, and the third-place is 6840

The linear arrangement of the set of the orders or the linear arrangements of the numbers is called the permutation.

Here, the order matters (1st, 2nd, and 3rd), so we need to use permutations.

There are 20 people who can get in first place.  After that, there are 19 people who can get in second place.  Finally, there are 18 people who can get in third place.  So:

20 x  19  x  18 = 684

Therefore Number of the  ways can they finish in first, second, and the third-place is 6840

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Answer:

None

Step-by-step explanation:

They are parallel and have the same slope

Okay I have the same question as you so first cross out A and C. Because negative numbers are to the left ,and the Answer is D

Since the difference between steps 1 and 2 is that 2x was subtracted from both sides, i'm pretty sure the answer is B, the Subtraction property of equality. Hope this helps you!

Answer:

B) Subtraction property of equality

Step-by-step explanation:

4x - 7 = 2x + 9

Subtract 2x from each side using the subtraction property  of equality

4x -2x  - 7 = 2x-2x + 9

2x -7 = 9

ANSWER

[tex]P(A and B) = \frac{39}{200} [/tex]

EXPLANATION

If A and B are independent events, then,

P(A and B)=P(A)×P(B)

It was given that:

[tex]P(A) = \frac{3}{10} [/tex]

and

[tex]P(B) = \frac{13}{20} [/tex]

[tex]P(A \: and \: B) = \frac{3}{10} \times \frac{13}{20} [/tex]

[tex]P(A and B) = \frac{39}{200} [/tex]

the probability of events A and B occurring together, P(A and B), is 39/200 or, when simplified, 0.195.

The subject of the question is finding the probability of both independent events A and B occurring together, which is represented by P(A and B). To calculate this, you simply multiply the probability of event A by the probability of event B since they are independent. Given that P(A) = 3/10 and P(B) = 13/20, the calculation would be as follows:

Thus, the probability of events A and B occurring together, P(A and B), is 39/200 or, when simplified, 0.195.

Answer:

The value of x = 11 units

Step-by-step explanation:

From the figure we can see a triangle.

A  parallel line to one side cut other two sides.

From this we get the parallel line cut the sides in the same ratio

Find the value of x

From figure we can write,

6/48 = 5/(3x + 7)

6(3x + 7) = 5 * 48

18x + 42 = 240

18x = 240 - 42 = 198

x = 198/18 = 11

The mean of the data is 4.5 and the median of the data is 5.

Statistics is the discipline that concerns the collection, organization, analysis, interpretation, and presentation of data.

To find the mean of the data, we add up all the values and divide by the total number of values:

2 + 7 + 5 + 4 + 3 + 3 + 5 + 5 + 6 + 5 = 45

There are 10 values, so:

mean = 45 / 10 = 4.5

Therefore, the mean of the data is 4.5.

To find the median of the data, we need to first put the values in order from smallest to largest:

2, 3, 3, 4, 5, 5, 5, 5, 6, 7

There are 10 values, which is an even number, so we take the average of the two middle values:

median = (5 + 5) / 2 = 5

Therefore,  the mean of the data is 4.5 and the median of the data is 5.

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Answer:

Step-by-step explanation:

[tex]d-10-2d+7=8+d-10-3d\qquad\text{combine like terms}\\\\(d-2d)+(-10+7)=(d-3d)+(8-10)\\\\-d-3=-2d-2\qquad\text{add 3 to both sides}\\\\-d=-2d+1\qquad\text{add}\ 2d\ \text{to both sides}\\\\d=1[/tex]

Let's say Lily invested x amount of money in bonds and 2x in stocks. What the yield is annually from those is 6% of x plus 2 * 8% of x, as she gets 6% in bonds and 8% in stocks. Simplified is 0.06x + 0.16x. Add and you get 0.22x. Now you can solve a simple equation.

Equation:

0.22x = 325.6 (as annual income is $325.60)

----divide both sides by 0.22----

x = 1480

----multiply by 2 to get your answer----

2x = amount of stocks = 1480 * 2 = $2960

Answer:

Step-by-step explanation:

You would take the area of half of a circle plus the area of a rectangle.  You don't have measures there, but the formula would be

[tex]A=\frac{\pi r^{2} }{2}+(l*w)[/tex]

im pretty sure its 43.96cm

Answer:

The answer is B 48 cm squared.

Step-by-step:

First divide into smaller sections. Then you will do Length times height.

9 x 4 = 36

6 x 2 = 12

36 + 12 = 48

Answer:

Step-by-step explanation:

Answer:

54.6

Step-by-step explanation:

Answer:

25%

Step-by-step explanation:

6.75 divided by 9 gives you 75%, if you want the discount then you subtract from 100 and get 25%

Answer:

25%

Step-by-step explanation:

The cost of each adult ticket is $28, but there is no solution for the cost of each student ticket in this case.

To solve this problem, we can set up a system of equations using the given information. Let's represent the cost of an adult ticket as 'a' and the cost of a student ticket as 's'. From the first equation, we know that 4a + 2s = 64. From the second equation, we know that 3a + 3s = 60. Now we can solve this system of equations.

Multiplying both sides of the second equation by 2 gives us 6a + 6s = 120. We can subtract the first equation from this equation to eliminate 's'.

6a + 6s - (4a + 2s) = 120 - 64

Expanding and simplifying the equation gives us 2a = 56. Dividing both sides by 2, we find that a = 28. Now we can substitute this value into either of the original equations to find 's'.

Using the first equation: 4(28) + 2s = 64

Simplifying the equation gives us 112 + 2s = 64

Subtracting 112 from both sides gives us 2s = -48. Dividing both sides by 2, we find that s = -24.

However, since we're talking about the cost of tickets, we can't have a negative value. Therefore, there is no solution for 's' in this case.

The cost of each adult ticket is $28, but there is no solution for the cost of each student ticket in this case.

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Answer: 7 and 3

Step-by-step explanation: 7 + 3 = 10 and 7-3 = 4

Step by step answer.

g / -1 + 10 < 7

-g + 10 < 7

-g  + 10 - 10 < 7 - 10

-g < -3

-g / -1 < -3 / -1

g > 3  --) answer

The reason why the sign is filpped is that because of g is the opposite of -g and if -g was less than 3 then g is greater than 3.

Answer:

[tex]\large\boxed{g>3\to g\in(3,\ \infty)}[/tex]

Step-by-step explanation:

[tex]\dfrac{g}{-1}+10<7\qquad\text{subtract 10 from both sides}\\\\-g<-3\qquad\text{change the signs}\\\\g>3[/tex]

Answer:

sure I'll help, 59.99 per hour. it's a pretty solid deal.

Step-by-step explanation:

Answer:

f(x) and g(x) are inverses

Step-by-step explanation:

* Lets check the inverse function

- If f(x) = y has a domain = x and a range = y, then f^-1 is the

  inverse of f with a domain  = y and a range = x

- f(x) = f^-1(x) = x

* Now lets solve the problem

∵ f(x) = 8/x

∵ g(x) = 8/x

∴ fg(x) = f(8/x)

∴ fg(x) = 8/(8/x) = 8 ÷ 8/x ⇒ change division sign to the multiplication

  sign and reciprocal the fraction after the division sign

∴ fg(x) = 8 × x/8 = x

* Now lets find gf(x)

∴ gf(x) = g(8/x)

∴ gf(x) = 8/(8/x) = 8 ÷ 8/x

∴ gf(x) = 8 × x/8 = x

∵ f(x) = f^-1(x) = x

* fg(x) = gf(x) = x

∴ f(x) and g(x) are inverses