Twelve different video games showing substance use were observed and the duration of times of game play​ (in seconds) are listed below. The design of the study justifies the assumption that the sample can be treated as a simple random sample. Use the sample data to construct ​% confidence interval estimate of ​, the standard deviation of the duration times of game play. Assume that this sample was obtained from a population with a normal distribution

Answer: 95  minutes

Step-by-step explanation: 205-110=95

Answer:

205-110=90

Step-by-step explanation:

I helped my brothers on this question

Answer:

a 1 over 25

Step-by-step explanation:

Problem Statement:

     What is the value of  [tex]\frac{5^{4} }{5 ^{6} }[/tex] ?

To solve this problem, we must familiarize ourselves with the concept of exponents and rules that guides them.

Exponents are used by scientists to report higher orders of a number.

Such large and often recurring expression is usually made up of a base and an exponent value.

The exponent value is the power of the base;   for example, 4³ has 4 as its base and 3 as the exponent.

Several rules guides solving an exponent, to this problem, the most applicable one is :

                            [tex]\frac{x^{a} }{x^{b} }[/tex]  =  [tex]x^{(a-b)}[/tex]

                           [tex]\frac{5^{4} }{5 ^{6} }[/tex]   =  [tex]5^{4-6}[/tex]  

                                 = [tex]5^{-2}[/tex]

                                 = [tex]\frac{1}{25}[/tex]                                  

Therefore the solution is 1 over 25

Answer:

a 1 over 25

Step-by-step explanation:

Explanation: There is 1 side that has what we want (rolling a 2) out of 6 sides total.

Step-by-step explanation:

arctan(x) is less than π/2 for x > 0.  Therefore, if we say g(x) = 13 (π/2) / eˣ, then f(x) < g(x) for all values of x > 0.

g(x) = 13 (π/2) / eˣ

g(x) = 13π/2 · (1/e)ˣ

So g(x) is a geometric series where r = 1/e.  Since |r| < 1, the series converges.

Since g(x) converges, the smaller f(x) also converges.

LP = HE

5x + 6 = 31

Subtract 6 from both sides

5x = 25

Divide both sides by 5

X = 5

Answer:

5x+6=31(opposite sides are equal)

5x=31-6

5x=25

x=25/5

x=5

hope it helps u

answer my questions plz

Answer:

-8

this is the all answer but no steps

Answer:

5 1/4

Step-by-step explanation:

change 4 1/4 to 4 2/4

2/4+3/4= 5/4

4 + 5/4 = 5 1/4

Answer:

The measure of angle A is 32

Step-by-step explanation:

A+B=180

2x-16+5x+28=180

7x+12=180

7x=168

x=24

A=2(24)-16

A=48-16

A=32

Answer:

The dude above is right it's 32, I put it in and it's right :-)

Step-by-step explanation:

Answer:

(y+7)²/364 - (x+8)²/364 = 1

Step-by-step explanation:

This is the standard form of a vertical hyperbola (y-k)²/a² - (x-h)²/b² = 1

so, (y²+14y+?) - (x²+16x+?) = 251

(y²+14+49)-49 - (x²+16x+64)-64 = 251

(y+7)² - (x+8)² = 251 + 49 + 64

(y+7)² - (x+8)² = 364

(y+7)²/364 - (x+8)²/364 = 1

Turn both sides into powers of 5:

[tex]\log_5(4x+11)=2\implies 5^{\log_5(4x+11)}=5^2\implies4x+11=25[/tex]

Solve for x :

[tex]4x+11=25\implies 4x=14\implies x=\dfrac{14}4=\boxed{\dfrac72}[/tex]

Answer:

x = 2 - log(48828125) / log(625)

x = -2.03466172

Step-by-step explanation:

Answer:

-x^2(x + 5)(x - 5)

Step-by-step explanation:

x^2 is common to both terms of -x^4+25x^2:

x^2(-x^2 + 25)

and the binomial factor can be factored further:

x^2(x + 5)(-x + 5) or

-x^2(x + 5)(x - 5)

Answer:

p: (-4)2 > 0

q: An isosceles triangle has two congruent sides.

r: Two angles, whose measure have a sum of 90, are supplements.​

Step-by-step explanation:

p: (-4)2 > 0

q: An isosceles triangle has two congruent sides.

r: Two angles, whose measure have a sum of 90, are supplements.​

Answer:

The percentage of customer would less likely to purchase next item is 26.2%

So, The nearest option will be (e).

Step-by-step explanation:

Given that,

The table of information is

Response = Very satisfied, Satisfied, less than fully satisfied and not satisfied

Frequency =  15, 30, 12 and 4

We need to calculate the total frequency

Using given frequency

[tex]Total\ frequency = 15+30+12+4[/tex]

[tex]Tota\ frequency = 61[/tex]

We need to calculate the total number of customers less or not fully satisfied

Using given data

[tex]x = 12+4[/tex]

[tex]x=16[/tex]

Where,  x = total number

We need to calculate the percentage of customer would less likely to purchase next item

Using formula for percentage

[tex]percentage\ of\ customer=\dfrac{total\ number\ of\ customer}{total\ frequency}\times100[/tex]

Put the value into the formula

[tex]percentage\ of\ customer=\dfrac{16}{61}\times100[/tex]

[tex]percentage\ of\ customer=26.2\%[/tex]

Hence, The percentage of customer would less likely to purchase next item is 26.2%

So, The nearest option will be (e).

Answer:

87km

Step-by-step explanation:

Volume is proportional to radius cubed, so radius is proportional to the cube root of volume.

Increase volume by a factor of 10^6 and radius increases by a factor of the cube root of 10^6, which is 10^(6/3) = 10^2 = 100.

100 * 0.87 km = 87 km

Answer:

9/4

Step-by-step explanation:

Assuming you meant -9 and -4, it would be 9/4. The order you list the numbers matter. Quotient is the answer for a division equation, so you have to divide. If there is an even amount of negative numbers, the answer will be positive, if there is an odd amount the answer will be negative. Here we have an even amount, so the answer is positive.

Answer:

4/9 so D

Step-by-step explanation:

i have this question and -4 divided by -9 is 0.44444444 which that equals 4/9

have a nice day! i hope that helped

Answer:

A-

Step-by-step explanation:

APEX

Answer:

negative six

Step-by-step explanation:

The answer is a

#3 is C, parallelogram is rotated -90° I think and moved down, so rotation and translation

#4 is B, I don't think the picture is showing how the fish loved, and it's facing a different way, so it's rotation

#5 is D, reflected over the x axis and translated to the right

#6 is B, reflected across the y axis

I hope these answers are correct, I'm answering right now at 3 am

Answer:b

Step-by-step explanation:

Answer:

3 ft.

Step-by-step explanation:

When you imagine the sentence, it is a right angled triangle. In this case, it's a Pythagoras Theorem. The formula for it is:

a²(opposite) + b²(adjacent) = c²(hypotenuse)

The building is the opposite, the distance between the foot of the ladder and the building is the adjacent, while the ladder is the hypotenuse.

We have the measurements except for the adjacent. So it will be:

c² - a² = b²

5² - 4² = b²

25 - 16 = b²

9 = b²

√9 = b

b = 3 ft

The answer is 3 ft.

Answer:

16

Step-by-step explanation:

40 divided by 2.5 equals 16

Answer:

f (k)

Step-by-step explanation:

Here, we are required to determine the value of f(-4) given the graph of a function f(x) as in the attached image.

The graph of the function f(x) is a curve, where x is the independent variable and f(x) is dependent on the value of x.

By observation, each box on the represents 1 unit on the x- and f(x) axis.

Ultimately, the point f(x) which corresponds to the point where x = -4 is; f(-4) = 2.

Therefore, f(-4) = 2 according to the graph of the function f(x) as given in the attached image.

Read more:

https://brainly.com/question/20632508

Answer:

6 inch

Step-by-step explanation:

If you remember the concept of how to find volume of cube then its pretty easy.

You find it by multiplying the length of one side by itself 3 times.

In this case we have to do opposite so we have to just find the cube root of 216 which is 6.

Pls make me brainliest if you find it helpful.

Answer:

The answer is 6 i know this because it said it was right on IXL but it may not be true

Step-by-step explanation:

Answer:

Step-by-step explanation:

(i) Since acceleration is constant, velocity is a linear function of time. The average velocity over the interval will serve for the purpose of computing the displacement.

  d = (v1+v2)/2×t = (1.5 m/s +3.5 m/s)/2·(10 s) = 25 m

P is displaced 25 meters from O when t=10.

__

(ii) Letting the initial velocity be represented by v1, we find the velocity as a function of time to be ...

  [tex]\displaystyle v(t)=v_1+\int_0^{t}{a(t)}\,dt=v_1+\int_0^{t}0.03t\,dt=v_1+\dfrac{0.03t^2}{2}\\\\v(10)=v_1+0.015\cdot 10^2 = v_1+1.5\\\\3.5=v_1+1.5\ \rightarrow\ v_1=2.0\quad\text{m/s}\\\\v(t)=2.0+0.015t^2[/tex]

Then the displacement is the integral of velocity ...

  [tex]\displaystyle d=\int_0^{10}{v(t)}\,dt=\int_0^{10}{(2.0+0.015t^2)}\,dt\\\\d=2.0(10)+0.015\left(\dfrac{10^3}{3}\right)=20+5=25[/tex]

Q is also displaced 25 meters from O when t=10.

Answer:

-6

Step-by-step explanation:

[tex]\frac{(t-r)}{3}[/tex]

input the numbers

[tex]\frac{(-6-12)}{3}[/tex]

do the problem in the parentheses first

-6-12 = -18

now it becomes

[tex]-\frac{18}{3}[/tex]

simplify and you'll get

-6

this is because -18 ÷ 3 =

-6

Answer:

-6

Step-by-step explanation:

-6-12 divided by 3 is -6 because -6-12 is -18 and -18 divided by 3 is -6

Answer: a

Step-by-step explanation: C is in quadrant 1 and quadrant 1 is (+,+)

The coordinate of the point C will be (b, c). Then the correct option is A.

The polygon which is having five sides and each side are congruent. And each internal angle of the Pentagon will be of 108 degrees.

The pentagon ABCDE with the coordinate of A, B, C, D, and E are given below.

If a line intersect the shape and the shape look identical on both sides of line, then the line is known as axis of symmetry.

In a regular pentagon, there are five line of symmetry.

In the figure, the y-axis is the axis of symmetry and the axis of symmetry is passing through the point D.

The point C is in the first coordinate, then the abscissa and ordinate will be positive.

Then the coordinate of the C will be (b, c).

Then the correct option is A.

More about the regular pentagon link is given below.

https://brainly.com/question/929013

#SPJ6

Answer:

I think the last option D)

Answer:

you're answer would be D

Answer:

The probability is [tex]P(X \le 70 ) = 0.7054 [/tex]

Step-by-step explanation:

From the question we are told that

The mean is [tex]\mu = 72.6 \ miles /hour [/tex]

The standard deviation is [tex]\sigma = 4.78 \ miles /hour[/tex]

The speed limit is [tex]x = 70 \ miles /hour[/tex]

Generally the probability that 5 cars pass and none are speeding is equivalent to the probability that the speed of the cars is less than x which is mathematically represented as

[tex]P(X \le x ) = 1 - P(X > x )[/tex]

Now

[tex]P(X > x) = P(\frac{X - \mu}{\sigma } >\frac{x - \mu}{\sigma } )[/tex]

Generally  

       [tex] \frac{X - \mu}{\sigma }   =  Z  (The  \  standardized \  value \  of  \  X)[/tex]

So

    [tex]P(X > 70) = P(Z >\frac{70 - 72.6}{72.6 }  )[/tex]

      [tex]P(X > 70) = P(Z > -0.54 )[/tex]

From the z-table  

           [tex] P(Z > -0.54 )  =  0.2946[/tex]

=>      [tex]P(X > 70) = 0.2946 [/tex]

So

    [tex]P(X \le 70 ) =  1 -  P(X > 70 )  [/tex]

=>  [tex]P(X \le 70 ) =  1 -  0.2946  [/tex]

=>  [tex]P(X \le 70 ) = 0.7054  [/tex]

Answer:

yes

Step-by-step explanation:

Answer: Yes

Step-by-step explanation:

32.06 you cant add zeros but 32.6 you can add as many zeros as you want to my the eqation so knowing that the new eqation would be:

32.60>32.06 which is obvossly true.