Please show step by step

Answer:

C) 2

Step-by-step explanation:

Emma: Range  = 8

Arianna: Range = 6

The difference in the range is 2 (8-6)

Answer:

C) 2

Step-by-step explanation:

Emma:

Max = 20

Min = 12

Range = 20 - 12

Range = 8

Arianna:

Max = 18

Min = 12

Range = 18 - 12

Range = 6

Difference between the 2 ranges:

8 - 6 = 2

Answer:

The answer is A.

Step-by-step explanation:

Answer:

D: C and D

Step-by-step explanation:

120/12=10

20/5=4

18/3=6

48/8=6

Since C and D have the same answer they are equal.

Answer:

the answer should be [tex]11^{5}[/tex] or 11^5

Explanation:

Since there are five 11 in the equation, the answer should be [tex]11^{5}[/tex] or 11^5

You shouldn't write 161051 as the answer because it is NOT a exponent.

Answer:

The wife IQ is 103 when the husband IQ is 100.

Step-by-step explanation:

The given equation of the regression line is y = -11 + 1.14x, where x represents the IQ score of the husband.

If the husband IQ is 100 the the wife IQ is

y = -11 + 1.14x,

y = -11 + 1.14(100)

y = -11 + 114

y = 103

9514 1404 393

Answer:

  x = -6

Step-by-step explanation:

The three marked angles total 180°, the number of degrees in a semicircle.

  (x +51) +65 +70 = 180

  x = 180 -186 = -6 . . . . . . . . subtract 186 and simplify

The value of x is -6.

Answer:

$2376

Step-by-step explanation:

We love you Kobe <3 We love you Gigi

Answer:

Theater B.

Step-by-step explanation:

Find out each theatre's percentage of seats taken.

Theater A =

100% = 60

1% = 60 ÷ 100 = 0.60

36 ÷ 0.60 = 60% of the seats taken.

Theater B =

81 + 9 = 90

100% = 90

1% = 90 ÷ 100 = 0.90

81 ÷ 0.90 = 90%

Theater C =

100% = 80

1% = 80 ÷ 100 = 0.80

80 - 12 = 68

68 ÷ 0.80 = 85%

Theater B have the greatest percentage of seats taken out of all 3.

Answer:90

Step-by-step explanation:

9514 1404 393

Answer:

  40

Step-by-step explanation:

If the number of questions on the test is Q, then we have ...

  35% × Q = 14

Dividing by the coefficient of Q gives ...

  Q = 14/0.35 = 40

There are 40 questions on the test.

Answer:

in my panies

Step-by-step explanation:

Answer:

The point estimate used was of $69,821.

The error bound is of $101.

Step-by-step explanation:

A confidence interval has two bounds, a lower bound and an upper bound.

A confidence interval is symmetric, which means that the point estimate used is the mid point between these two bounds, that is, the mean of the two bounds.

The error bound is half the difference between these two values.

In this question:

90% confidence that the mean household income in the U.S. falls between $69,720 and $69,922.

Point estimate:

(69720+69922)/2 = 69821

The point estimate used was of $69,821.

Error bound:

(69922 - 69720)/2 = 101

The error bound is of $101.

Answer:

The integer is 1

Step-by-step explanation:

Required

Translate and solve

Let the positive integer be x.

So, we have;

The square of the integer is: x^2

Plus 5 times its consecutive integer is: x^2 + 5(x + 1)

Equals 11 is: x^2 + 5(x + 1) = 11

So, we have:

[tex]x^2 + 5(x + 1) = 11[/tex]

Open bracket

[tex]x^2 + 5x + 5= 11[/tex]

Subtract 11 from both sides

[tex]x^2 + 5x -6= 0[/tex]

Expand

[tex]x^2 + 6x - x-6= 0[/tex]

Factorize:

[tex]x(x + 6) - 1(x+6)= 0[/tex]

Factor out x + 6

[tex](x - 1) (x+6)= 0[/tex]

Split

[tex]x - 1 = 0\ or\ x + 6 = 0[/tex]

Solve for x in both cases

[tex]x = 1\ or\ x = -6[/tex]

Since the number is positive, then [tex]x = 1[/tex]

Answer:

k = 7

Step-by-step explanation:

63 ÷ 9 = 7

Answer:

b i think

Step-by-step explanation:

Answer:

if 2 means multiply by 2, the answer would be 12. If it just is there as a hint then the answer is 24.

Step-by-step explanation:

Hope this helps!

Answer: 6.1

Step-by-step explanation:

Answer:

6.1

Step-by-step explanation:

have a good day/night may i please have a branlliest

B on Ap3x.............

Answer:

B

Step-by-step explanation:

Answer:

a)[tex]X=((-15-\sqrt{201},(-15+\sqrt{201}),(0,\infty)[/tex]

b)[tex]Y=(\infty,\frac{1}{2}(-15-\sqrt{201} ) ),(\frac{1}{2}()-15+\sqrt{201)},0 )[/tex]

Step-by-step explanation:

From the question we are told that

The Function

[tex]f(x)=1+\frac{1}{x} +\frac{5}{x^2} +\frac{1}{x^3}[/tex]

Generally the differentiation of function f(x) is mathematically solved as

[tex]f(x)=1+\frac{1}{x} +\frac{5}{x^2} +\frac{1}{x^3}[/tex]

[tex]f(x)=\frac{x^3+x^2+5x+1}{x^2}[/tex]

Therefore

[tex]f'(x)=\frac{x^2+10x+3}{x^4}[/tex]

Generally critical point is given as

[tex]f'(x)=0[/tex]

[tex]\frac{x^2+10x+3}{x^4}=0[/tex]

[tex]x=-5 \pm\sqrt{22}[/tex]

Generally the maximum and minimum x value for critical point is mathematically solved as

[tex]f'(-5 \pm\sqrt{22})[/tex]

Where

Maximum value of x

[tex]f'(-5 +\sqrt{22})<0[/tex]

Minimum value of x

[tex]f'(-5 +\sqrt{22})<0[/tex]

Therefore interval of increase is mathematically given by

[tex]f'(-5 -\sqrt{22}),f'(-5 +\sqrt{22})[/tex]

[tex]f(x)<0,-\infty<x<(f'(-5 -\sqrt{22})) ,(f'(-5 +\sqrt{22}))<x<0,0<x< \infty[/tex]

Therefore interval of decrease is mathematically given by

[tex](-\infty,-5 -\sqrt{22}),f'(-5 +\sqrt{22},0),(0,\infty)[/tex]

Generally the second differentiation of function f(x) is mathematically solved as

[tex]f''(x)=\frac{2(x^2+15x+6)}{x^5}[/tex]

Generally the point of inflection is mathematically solved as

[tex]f''(x)=0[/tex]

[tex]x^2+15x+6=0[/tex]

Therefore inflection points is given as

[tex]x=\frac{1}{2} (-15 \pm \sqrt{201}[/tex]

[tex]f''(x)>0,\frac{1}{2}(-15-\sqrt{201}) <x<\frac{1}{2}(-15-\sqrt{201}) <x<0[/tex]

a)Generally the concave upward interval X is mathematically given as

[tex]X=((-15-\sqrt{201},(-15+\sqrt{201}),(0,\infty)[/tex]

[tex]f''(x)<0,-\infty<x<\frac{1}{2}(-15-\sqrt{201}) , \frac{1}{2}(-15-\sqrt{201}) <x<0[/tex]

b)Generally the concave downward interval Y is mathematically given as

[tex]Y=(\infty,\frac{1}{2}(-15-\sqrt{201} ) ),(\frac{1}{2}()-15+\sqrt{201)},0 )[/tex]

The value of x is: A. 38°

Answer:

Step-by-step explanation:

[tex]x=\frac{D_{1}}{D} \\y=\frac{D_{2}}{D}[/tex]

Answer:

0.9332 = 93.32% probability that the mean of the sample will be less than 12.1 ounces.

Step-by-step explanation:

To solve this question, we need to understand the normal probability distribution and the central limit theorem.

Normal Probability Distribution:

Problems of normal distributions can be solved using the z-score formula.

In a set with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the z-score of a measure X is given by:

[tex]Z = \frac{X - \mu}{\sigma}[/tex]

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the p-value, we get the probability that the value of the measure is greater than X.

Central Limit Theorem

The Central Limit Theorem estabilishes that, for a normally distributed random variable X, with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the sampling distribution of the sample means with size n can be approximated to a normal distribution with mean [tex]\mu[/tex] and standard deviation [tex]s = \frac{\sigma}{\sqrt{n}}[/tex].

For a skewed variable, the Central Limit Theorem can also be applied, as long as n is at least 30.

Mean of 12 ounces and a standard deviation of 0.2 ounces.

This means that [tex]\mu = 12, \sigma = 0.2[/tex]

Sample of 9:

This means that [tex]n = 9, s = \frac{0.2}{\sqrt{9}}[/tex]

Find the probability that the mean of the sample will be less than 12.1 ounces.

This is the pvalue of Z when X = 12.1. So

[tex]Z = \frac{X - \mu}{\sigma}[/tex]

By the Central Limit Theorem

[tex]Z = \frac{X - \mu}{s}[/tex]

[tex]Z = \frac{12.1 - 12}{\frac{0.2}{\sqrt{9}}}[/tex]

[tex]Z = 1.5[/tex]

[tex]Z = 1.5[/tex] has a pvalue of 0.9332

0.9332 = 93.32% probability that the mean of the sample will be less than 12.1 ounces.

Answer:

20 - 6x = 4x - 15

35 - 6x = 4x

35 = 2x

x = 15.5

The solution to the equation 20 - 6x = 4x -15 is x = 3.5.

To solve the equation 20 - 6x = 4x - 15,

20 - 6x = 4x - 15

To isolate the variable terms on one side,  add 6x to both sides:

20 - 6x + 6x = 4x - 15 + 6x

20 = 10x - 15

Next, add 15 to both sides to further isolate the variable term:

20 + 15 = 10x - 15 + 15

35 = 10x

Finally, divide both sides by 10 to solve for x:

35/10 = 10x/10

3.5 = x

Therefore, the solution to the equation is x = 3.5.

Learn more about Equation here:

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B

Step-by-step explanation:

In a year, offer B would be more. Since annually is once a year and there are 12 months in a year, multiplying B by 12 would get each to a year.

Answer:

desculpa mas eu não sei a resposta mais eu vou ver se posso te ajudar taaa

Answer:

1.) up

2.) (-2,-5)

3.) x = -2

4.) (-2,-5)

5.) y = -5

6.) -∞ < x < ∞

7.) -5 < y < ∞

8.) (0,0)

9.) (0,0) and (-4,0)

10.) two solutions

Step-by-step explanation:

1.) because the parabola opens upward and the vertex is down

2.) the lowest point of the parabola is (-2,-5)

3.) If a line was drawn through the point x = -2, the two halves of the parabola would look symmetrical ( the same on both sides).

4.) The minimum point on the graph is ( -2,-5), because that is the lowest point on this upward parabola, and we can not determine the maximum.

5.) The minimum value of y is y = -5, because that is the lowest value of y on this graph, and we can not determine the maximum.

6.) Because the arms of the parabola continue traveling through negative infinity and positive infinity on the x-axis, the domain is -∞ < x < ∞.

7.) The arms of the parabola go from y = -5 to infinity, so the range of the parabola is -5 < y < ∞.

8.) The parabola first crosses the y-axis at the point (0,0)

9.) The parabola first crosses the x-axis at the points (0,0) and (-4,0)

10,) The solution to the parabola is the variable x. The solutions (x intercepts) of the parabola are x = 0 and x = -4.

Does this help you?

Answer:

Yes, it's when the tank is out of water.  

Step-by-step explanation:

Answer:

Where r the statements?

Step-by-step explanation: