Enter the ordered pair for the point.

Answer:

The value is  [tex]n_2 = 260[/tex]

Step-by-step explanation:

From the question we are told the confidence level is  95% , hence the level of significance is    

      [tex]\alpha = (100 - 95 ) \%[/tex]

=>   [tex]\alpha = 0.05[/tex]

Generally from the normal distribution table the critical value  of  [tex]\frac{\alpha }{2}[/tex] is  

   [tex]Z_{\frac{\alpha }{2} } =  1.96[/tex]

Generally the width of  a confidence interval is dependent on the margin of error which is mathematically represented as

      [tex]E = Z_{\frac{\alpha }{2} } * \frac{ \sigma}{\sqrt{n} }[/tex]

Here [tex]\sigma[/tex] is the standard deviation  

Let assume that [tex]\sigma[/tex] and  [tex]Z_{\frac{\alpha }{2} } [/tex] are constant for the width of the confidence interval when the sample size is  n =65 and now that it has been divided to two

=>  [tex]E = \frac{ K }{\sqrt{n} }[/tex]

Here  K is a constant  

=>   [tex]E * \sqrt{n} = K[/tex]

=>    [tex]E_1 * \sqrt{n}_1 = E_2 * \sqrt{n}_2[/tex]

Now let [tex]E_1 \ and \ n_1[/tex] be the margin of error and sample size before the reduction

  So [tex]n_1 = 65[/tex]

and let [tex]E_2 \ and \ n_2[/tex] be the margin of error and sample size after the reduction  

    So  [tex]E_2 = \frac{1}{2} E_1[/tex]

=>   [tex]E_1 * \sqrt{65} = \frac{E_1}{2} * \sqrt{n}_2[/tex]

=>   [tex]\sqrt{65} = \frac{1}{2} * \sqrt{n}_2[/tex]

=>   [tex]n_2 = 260[/tex]

Answer:

Step 1.

Step-by-step explanation:

You can't multiply sum of 2 random digits to the power of 3.

Answer:

14

Step-by-step explanation:

1204/86 (divide by 2)

602/43 ( divide by 43)

14

Answer:

y=1600

x=2400

Step-by-step explanation:

x+y=4000

solve for a variable

x=4000-y

plug this into .06x+.11y=320 (the interest from account 1 + account 2 must equal 320)

.06(4000-y)+.11y=320

240-.06y+.11y=320

minus 240 both sides

-.06y+.11y=80

combine terms

.05y=80

divide by .05

y=1600

to find x you subtract 1600 from 4000 to get 2400

remember, your equation must be x+y=4000

x+1600=4000

-1600

x=2400

Intro:

Hello!!! Princess Sakura here ^^

Step-by-step explanation:

In all of these I just plugged in for x

Checking choice (1):

[tex]2x+1>15\\2(9)+1>15\\18+1 >15\\19>15[/tex]

This is true so it's not the right answer.

________________________________________________________

Checking choice (2):

[tex]2x+1>15\\2(7)+1>15\\14+1>15\\15>15[/tex]

This is false so this is the answer.

But we'll just check the others just in case.

_________________________________________________________

Checking choice (3):

[tex]2x+1>15\\2(10)+1>15\\20+1>15\\21>15[/tex]

This is true so it can't be the answer.

_________________________________________________________

Checking choice (4):

[tex]2x+1>15\\2(15)+1>15\\30+1>15\\31>15[/tex]

This is true so it can't be the answer.

_________________________________________________________

Now we found out that the answer is Choice 2.

the greatest common factor is 6

Answer:

53m

Step-by-step explanation:

Let x = the width

Let y = the length

5x + 3 = y

2x + 2y = 126

Plug in 5x + 3 for y in the second equation

2x + 2(5x + 3) = 126

Distribute the 2

2x + 10x + 6 = 126

Combine like terms

12x + 6 = 126

Subtract 6 from both sides

12x = 120

Divide both sides by 12

[tex] \frac{12x}{12} = \frac{120}{12} [/tex]

x = 10

Remember x = width. You are looking for length.

y = 5x + 3

y = 5(10) + 3

y = 50 + 3

y = 53

Answer:

3 blue squares and 6 white squares

Step-by-step explanation:

1 x 3 = 3

2 x 3 = 6

The answer is 3 to 6.

3 to 6 can be represented by 3 blue squares and 6 white squares.

Answer:

It is the last one. Hope this helps (:

Step-by-step explanation:

Answer:

Step-by-step explanation:

There is no graph.

Answer:

meeeeeeeee

Step-by-step explanation:

jhcsjhabnjdf

Answer:

Ana oop sksksk For sure math is the only subject I struggle in lol

Step-by-step explanation:

Answer:

She spends $2 a day, and there are 7 days a week. So, you'd multiply the amount which is 2 by the 7 days.

The amount she spends in one week is $14! I don't know how to add a double number line, so you do that part!

Step-by-step explanation:

Good luck! <3

Answer:

5x−2y=−5, Eqn (1). y−5x=3, Eqn (2). y

Step-by-step explanation:

Answer:

-2,0

Step-by-step explanation:

Solve equation [2] for the variable  x  

 [2]    3x = 2y - 6

 [2]    x = 2y/3 - 2

Plug this in for variable  x  in equation [1]

  [1]    5•(2y/3-2) + 6y = -10

  [1]    28y/3 = 0

  [1]    28y = 0

Solve equation [1] for the variable  y  

  [1]    28y = 0  

  [1]    y = 0  

By now we know this much :

   x = 2y/3-2

   y = 0

Use the  y  value to solve for  x  

   x = (2/3)(-0/18062600)-2 = -2

Answer:

-1

Step-by-step explanation:

Answer:

-1

Step-by-step explanation:

:)

Tanya has 26 quarters and 18 dimes.

Given that Tanya has 44 quarters and dimes which worth $8.30, we need to find the number of each coin type,

To find the same we will use the concept of system of Linear equations,

Let's solve this problem step by step.

Let's assume Tanya has x quarters and y dimes.

The value of x quarters is 25x cents.

The value of y dimes is 10y cents.

According to the given information, the total value of the quarters and dimes is $8.30, which is equivalent to 830 cents. So we have the equation:

25x + 10y = 830 ...........(Equation 1)

Tanya has 44 coins in total:

x + y = 44 ...........(Equation 2)

Now, we can solve this system of equations (Equation 1 and Equation 2) to find the values of x and y.

Multiplying Equation 2 by 25, we get:

25x + 25y = 1100 ...........(Equation 3)

Subtracting Equation 3 from Equation 1, we eliminate the x term:

25x + 10y - (25x + 25y) = 830 - 1100

-15y = -270

Dividing both sides by -15, we get:

y = (-270)/(-15) = 18

Substituting the value of y back into Equation 2, we can find x:

x + 18 = 44

x = 44 - 18 = 26

Therefore, Tanya has 26 quarters and 18 dimes.

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Answer:

48 meters

Step-by-step explanation:

First, use trigonometric ratios formula to find the distance of each of them from the tower. The difference between their distance from the tower will give you the distance they stood apart from each other.

Distance of the first person from the Tower with am angle of elevation of 25°:

Height of the tower = 30 meters (opposite side)

Distance from the tower = x (adjacent side)

[tex] tan(25) = \frac{opp}{adjacent} [/tex]

[tex] tan(25) = \frac{30}{x} [/tex]

Multiply both sides by x

[tex] tan(25)*x = 30 [/tex]

Divide both sides by tan(25)

[tex] x = \frac{30}{tan(25)} [/tex]

[tex] x = 64 m [/tex] (nearest whole number)

Distance of the second person from the Tower with am angle of elevation of 15°:

Height of the tower = 30 meters (opposite side)

Distance from the tower = x (adjacent side)

[tex] tan(15) = \frac{opp}{adjacent} [/tex]

[tex] tan(15) = \frac{30}{x} [/tex]

Multiply both sides by x

[tex] tan(15)*x = 30 [/tex]

Divide both sides by tan(15)

[tex] x = \frac{30}{tan(15)} [/tex]

[tex] x = 112 m [/tex] (nearest whole number)

Distance between both of them = 112 - 64 = 48 meters

Answer:

I think that it might be a type-o on the assignment. If I was you I would email your teacher.

Answer:

If you're only counting positive numbers then there are 8,900 four-digit numbers that are not divisible by 100, but if you also include negative numbers then your answer would be 17,800.

Answer:there is $3.67 left.

Step-by-step explanation: good luck on your assignment! :)

Answer: It is A and C:

A: Add 8 to both sides

C: Subtract 6x from both sides

Answer:

this would be your answer

Step-by-step explanation:

Answer:

A

Step-by-step explanation:

Answer:

It's A 30%

Step-by-step explanation:

Answer:

[tex]\frac{9}{28}[/tex]

Step-by-step explanation:

Given expression:

 Find the quotient;

                      =      [tex]\frac{2}{7}[/tex]  ÷ [tex]\frac{8}{9}[/tex]

Now, let us solve the problem;

          the division sign will invert  [tex]\frac{8}{9}[/tex];

                     =    [tex]\frac{2}{7}[/tex]  x [tex]\frac{9}{8}[/tex]

                               2 will go in 8

                   = [tex]\frac{1}{7}[/tex] x [tex]\frac{9}{4}[/tex]

                   = [tex]\frac{9}{28}[/tex]

Answer:

(1,7)

Step-by-step explanation:

in order for something to be a function, each x value can only have one y value (vertical line test). because all of the other answers use x values that were previously assigned a y value, (1,7) is the only one that works.

Answer:

its something like 9-n x 2

Step-by-step explanation:

9 - n x 2

Answer: 2(x-9)

Step-by-step explanation:

trust me ;)

45 ? 45 is A. ≤( is less than or equal to), C. ≥(is greater than or equal to), E. = (is equal to) .

Inequality is a relation that compares two numbers or other mathematical expressions in an unequal way.

The symbol a < b indicates that a is smaller than b.

When a > b is used, it indicates that a is bigger than b.

a is less than or equal to b when a notation like a ≤ b.

a is bigger or equal value of an is indicated by the notation a ≥ b.

Given, 45? 45.

45 ? 45 is equal to 45.

45 ? 45 is greater than or equal to 45.

45 ? 45 is less than or equal to 45.

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This question is not correctly written

Complete Question

A 6-ft-tall person walks away from a 11-ft lamppost at a constant rate of 3.3 ft/sec. What is the rate that the tip of the person's shadow moves away from the lamppost when the person is 11 ft away from the lampost?

Answer:

7.26ft/s

Step-by-step explanation:

A 6-ft-tall person walks away from a 11-ft lamppost at a constant rate of 3.3 ft/sec. What is the rate that the tip of the person's shadow moves away from the lamppost when the person is 11 ft away from the lampost?

Let x = distance of person to the tip of the lamp post

= 6/x = 11/d

Cross Multiply

6d = 11 x....... Equation 1

The constant rate of the person = 3.3 ft/s

= Distance of the person to the pole = Speed × time

= 3.3 × t

d = 3.3t

x = d - 3.3t

Substitute d - 3.3t for x in Equation 1

6d = 11x

6d = 11(d - 3.3t)

6d = 11d - 36.3t

36.3t = 11d - 6d

36.3t = 5d

d = 36.3/5

d = 7.26 ft/s

The new function after the transformation becomes as y = eˣ⁻⁷ + 5. The correct option is (d).

The graph of a function can be transformed by either shifting it in the right, left, up or down.

When the transformation is rightwards, the function becomes as f(x - a).

For left shifting it is  f(x + a).

And, for up and down shift it is a + f(x) and a - f(x) respectively.

Given that,

The graph of y = eˣ is translated 7 units to the right and 5 units upward.

According to the rule of transformation for a graph, when a function is shifted righwards, it becomes as f(x - a) and when it is shifted upwards it becomes a + f(x).

Apply the above mentioned rule for the given function to obtain,

y = eˣ⁻⁷ + 5

Hence, the function resulting after being shifted 7 units rightwards and 5 units upwards is y = eˣ⁻⁷ + 5.

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Answer:

x-intercept(s):(5/2,0)

y-intercept(s): (0,5)

Step-by-step explanation: i think thats right idk

Answer:

the y intercept is (0,5) and the x intercept is ( 2.5,0)

Step-by-step explanation:

I know this because khan academy gave me the answer

its not 5/2 or 2/5 for the x intercept

Answer:

3/4

Step-by-step explanation:

it is 3/4 anything dividing one is itself