Someone please help me out!!

Answer:

Hello There!!

Step-by-step explanation:

The answer is 56.

hope this helps,have a great day!!

~Pinky~

The probability of observing the experiment result, a sample mean, for example, or something more unusual just by chance if the null hypothesis is true is the definition of "P-Value."

A null hypothesis is a sort of statistical hypothesis which asserts that there is no statistical significance in a particular set of observations.

Using sample data, hypothesis testing is performed to determine the believability of a theory. It really is expressed as H0 and is also known to simply as "null."

Some key features regarding null hypothesis are-

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To mix with 32 ounces of water in a ratio of 8:1, you should use either 3 ounces (rounded down) or 4 ounces (rounded up) of the release agent.

To determine the number of ounces of the release agent needed, we need to calculate 1/9th of the total mixture, since the ratio of water to release agent is 8:1.

First, we find the amount of 1/9th of the mixture by dividing the total amount of water (32 ounces) by the sum of the ratio (8+1=9):

32 ounces / 9 = 3.56 ounces (rounded to two decimal places)

Therefore, you should mix approximately 3.56 ounces of the release agent with 32 ounces of water.

However, since we cannot have a fraction of an ounce in practical terms, we need to round the value to a whole number. In this case, we have two options:

Rounding down: If we round down to the nearest whole number, we would use 3 ounces of the release agent.

Rounding up: If we round up to the nearest whole number, we would use 4 ounces of the release agent.

The choice between rounding down or rounding up depends on the specific requirements or instructions given for the mixture. If precision is not crucial, rounding down to 3 ounces is a reasonable choice. However, if accuracy is important, rounding up to 4 ounces would be more appropriate.

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A. non-contact

B. poles

C. protons

D. attraction

HopeItHelps you

Your answer would be 1/x^2 -6

The mean (μ) for the given binomial distribution is 0.50.

To calculate the mean (μ) of a binomial distribution, we multiply the number of trials (n) by the probability of success in a single trial (π). Let's examine each scenario in detail:

a. When n = 5 and π = 0.10:

μ = 5 * 0.10

  = 0.50

For this binomial distribution, with 5 trials and a success probability of 0.10, the mean (μ) is 0.50. This means that, on average, we would expect to have 0.50 successes per trial.

b. When n = 3 and π = 0.40:

μ = 3 * 0.40

  = 1.20

In this case, the mean (μ) of the binomial distribution is 1.20. It indicates that, on average, there would be 1.20 successes per trial when there are 3 trials and a success probability of 0.40.

c. When n = 5 and π = 0.50:

μ = 5 * 0.50

  = 2.50

For a binomial distribution with 5 trials and a success probability of 0.50, the mean (μ) is 2.50. This means that, on average, we would expect to have 2.50 successes per trial.

d. When n = 3 and π = 0.80:

μ = 3 * 0.80

  = 2.40

In this scenario, the mean (μ) of the binomial distribution is 2.40. It suggests that, on average, we would expect to have 2.40 successes per trial when there are 3 trials and a success probability of 0.80.

The mean (μ) provides a measure of the central tendency or the average number of successes in a binomial distribution based on the given parameters.

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Answer:

a) 450,000,000,000  (450 Billion)

b) 3500

Step-by-step explanation:

a) (5 x 9) · 10^(3+7)

   45 x 10^10

b) (7 ÷ 2) · 10^5-2

   3.5 x 10^3

Answer:

a) 45,000,000,000,000

b) 3,500

Step-by-step explanation:

Where there is an exponent and the base is 10, the exponent is how many zeros to add to the end of the number.

a) (5x10,000)x(9x100,000,000)

50,000x900,000,000

45,000,000,000,000

b)(7x1,000,000)/(2x1,000)

7,000,000/2,000

3,500

The additive and multiplicative inverse of v{x} are -1 and 1 respectively.

An function in mathematics defines a relationship between one variable (the independent variable, x)  and another variable (the dependent variable, y). Example -

y = f{x} = ax + b

Given is a constant function -

v{x} = 1

We can write the additive inverse of v{x} as -

a⁻¹ (v{x}) = - v{x} = - 1

a⁻¹ (v{x}) = - 1                           ..... { 1 }

and

We can write the multiplicative inverse of v{x} as -

m⁻¹ (v{x}) = 1/v{x} = 1/1 = 1

m⁻¹ (v{x}) = 1                                ...... { 2 }

Therefore, the additive and multiplicative inverse of v{x} are -1 and 1 respectively.

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Answer:

C≈25.13ft

Step-by-step explanation:

C=2πr=2·π·4≈25.13274ft

Answer:

Step-by-step explanation:

since it is 100% and the pie chart circle is 360°, then for each % it will be 3.6°

applying this into drawing, just times 3.6° to the percentage and then get the final angle for the data.

--------------------------------------------

if you don't need to be so concise, just see as you fit

If 12 out of every 15 people prefer eating at a restaurant, then 12/15 of the people who took the survey chose that option. We know that 12/15 of the total number of people who took the survey is equal to 400 people, so we can set up the equation:

(12/15)x = 400

To find the total number of people who took the survey, we can solve for x by multiplying both sides of the equation by 15/12:

x = (400)(15/12)

x = 500

So, 500 people took the survey.

Answer: 24c

Step-by-step explanation:

c = cost

6x4=24

24 times the amount it costs per hour c

24c

The length and width of a rectangle that maximises the enclosed area are 800 yards. The maximum area is 640,000 square yards.

In the given question we have to find the maximum area of the rectangular area.

Liana has 3200 yards of fencing to enclose a rectangle.

As we know that the perimeter of rectangle

P= 2(l+b)

Let length of the rectangle is x yards and width is y yards.

So the equation should be

2(x+y) = 3200

Divide by 2 on both side we get

x+y = 1600................(1)

From the area of rectangle is

A = xy

From the equation the value of y is 1600-x.

Now putting the value of y

A = x(1600-x)

A = 1600x-x^2

On differentiating

dA/dx = 1600-2x

Putting dA/dx=0

1600-2x=0

Subtract 1600 on both side we get

-2x= -1600

Divide by -2 on both side we get

x = 800 yards

Now putting the value of x in the y=1600-x

y=1600-800

y=800 yards

So the maximum area is

A= 800*800

A= 640,000 square yards

Hence, the length and width of a rectangle that maximises the enclosed area are 800 yards. 640,000 square yards is the maximum area.

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the correct answer is 5.89999999948*10^12

Answer:

B

Step-by-step explanation:

subtract 3

input and output always input should be your first one.

So, 6-3=3  7-3=4  8-3=5

9-3=6 10-3=7

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The probability that a sample of 120 female graduates will = 0.8905

what is probability?

The area of mathematics known as probability deals with numerical representations of the likelihood that an event will occur or that a statement is true.

= |y -µ| ≥ 0.60

z = y -µ /σ√n

= 0.60/4.10√120

= 0.60/0.3742770

=1.60

Pr ( y -µy) ≤ 0.60 = P |z|≤1.60

=P ( -1.60≤ Z≤ -1.60)

=P (Z ≤ 1.60) -P ( Z≤ -1.60)

= 0.9452 - 0.0547 using z table

= 0.8905

Female graduates

mean = 27.83

sd = 4.10

sample = 120

µx = 27.83

σx = σ/√n

= 4.10/√120

a) P (X bar > 27.83)

= P (X bar -µx)/ σx > 27.83-27.83/4.10/√120

= P ( z > -1.60)

= 0.9452

For men

Mean=µ=37.39

Sd=σ=4.60 ,n=50

Probability that sample mean within $1.00 of the population mean

u-1=37.39-1=36.39

u+1=37.39+1=38.39

P = (36.39 <X bar < 38.39)

= P \(\frac{36.39-37.39 }{4.60/\sqrt{60} } < \frac{X bar - µ}{σ/\sqrt{n} } < \frac{39.39-37.39}{4.60/\sqrt{60} }\)

= P ( -1.6839 < Z <1.6839

= P ( -1.68 < Z <1.68)

= P (Z < 1.68) - P(Z < -1.68)

= 0.9535- 0.0465

= 0.9070

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Considering the area and the perimeter of a rectangle, the quadratic equation that gives the area (A) of the pen, given its width (w), is:

A = -w² + 50w.

Considering a rectangle of length l and width w, we have that the area and the perimeter have equations presented as follows:

In the context of this problem, the farmer has 100 m of fencing to enclose a rectangular pen, meaning that the perimeter is of 100 m, hence:

2(l + w) = 100

l + w = 50

l = 50 - w.

Hence the area of the pen is given by the following quadratic equation:

A = lw

A = (50 - w)w

A = -w² + 50w.

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Answer:

The answer is $12.78

Step-by-step explanation:

Answer:

So if you want to find 6% sales tax for an item costing $12, simply move the decimal point to the left two places and multiply. You will write 6% as . o6. Now multiply that by 12 to find the sales tax.

Step-by-step explanation:

Calculating Total Cost. Multiply the cost of an item or service by the sales tax in order to find out the total cost. The equation looks like this: Item or service cost x sales tax (in decimal form) = total sales tax. Add the total sales tax to the Item or service cost to get your total cost.

Calculating sales tax on a product or service is straightforward: Simply multiply the cost of the product or service by the tax rate. For example, if you operate your business in a state with a 6% sales tax and you sell chairs for $100 each, you would multiply $100 by 6%, which equals $6, the total amount of sales tax.

Answer:

Simplify the expression.

−16x

Step-by-step explanation:

Uniform line movement.

The uniform rectilinear movement is the movement that maintains a variation of the distance with respect to time always constant, since the acceleration is zero.

If we know that Wilson travels 53.7 miles in 1.6 hours, we determine the average speed from the following equation:

Speed = distance / time

Speed = 53.7 miles / 1.6 hours

Speed = 33.5625 miles/hour

V = 33.6 miles/hour

The average speed that Wilson travels is: V = 33.6 miles/hour.

Answer:

The answer should be -156-61i

Answer:

2x and 9x are the coefficients.

Step-by-step explanation:

In mathematics, a coefficient is a multiplicative factor in some term of a polynomial, a series, or any expression; it is usually a number, but may be any expression (including variables such as a, b and c ).

Answer:

18.7 units

Step-by-step explanation:

In this right-angled triangle, you are provided with:

Two angles (i.e. 36° and 90°)

One side (i.e. Line AC, which is 11 units)

Line AB is known as the 'hypotenuse' of the right-angled triangle, which is what needs to be determined.

On the basis of 36° angle:

The side opposite (i.e. Line AC)  is known as the 'opposite' or 'perpendicular side'

The side adjacent (i.e. Line BC) is known as the 'adjacent' or 'base'

Trigonometric function:

The trigonometric function, which connects an angle, it's opposite side and the hypotenuse is the 'sine function':

sinФ = \(\frac{opposite}{hypotenuse}\)

sin36° = \(\frac{11}{x}\)

Cross-multiplication is applied:

x needs to be isolated and made the subject of the equation:

xsin36° = 11

≡ x = \(\frac{11}{sin36^{o}}\)

∴ x = 18.7 units (Rounded off to 3 significant figures)

The required expression for

\(log_5(\frac{x}{4} )^2\) = 2 \(log_5\) x - 2 \(log_5\) 4.

Given,

In the question:

The expression is given as:

Log subscript 5 baseline (startfraction x over 4 endfraction) squared

To find the which expression is equivalent?

Now, According to the question:

The expression is given as:

\(log_5(\frac{x}{4} )^2\).

We know that from the properties of logarithm, the following identities

\(log m^n = n log m...(1)\\\\log\frac{m}{n} = log m - log n .....(2)\)

Now,  \(log_5(\frac{x}{4} )^2\) = 2 log \(\frac{x}{4}\) (using 1 identity)

Again, Using (2) identity we get,

\(log_5(\frac{x}{4} )^2\) = 2 \(log_5\) x - 2 \(log_5\) 4.

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Answer:

14. 46.2 ft (nearest tenth)

15. 95.5° (nearest tenth)

Step-by-step explanation:

Question 14

The diagonal of the square (from home plate to second base) is:

\(\sqrt{65^2+65^2} =91.92388155...\)

Half of this is 45.9619... ft.

Therefore, ∠ABC is not 90° and so triangle ABC is NOT a right triangle.

To determine length AB we must use the cosine rule:

\(c^2=a^2+b^2-2ab \cos C\)

(where a and b are the sides, C is the include angle, and c is the side opposite the angle)

Given:

Substituting given values into the formula:

\(\implies c^2=41.5^2+65^2-2(41.5)(65) \cos (45)\)

\(\implies c^2=1722.25+4225-5395 \cdot \dfrac{\sqrt{2} }{2}\)

\(\implies c^2=2132.408915...\)

\(\implies c=\pm\sqrt{2132.408915...}\)

\(\implies c=\pm46.17801333...\)

As distance is positive, c = 46.2 ft (nearest tenth)

Question 15

We need to find angle B.

Use the sine rule:

\(\dfrac{\sin(A)}{a}=\dfrac{\sin(B)}{b}=\dfrac{\sin(C)}{c}\)

(where A, B and C are the angles, and a, b and c are the sides opposite the angles)

IMPORTANT:  As angle B is obtuse (more than 90° and less than 180°), the sine of an obtuse angle = sine of its supplement

Therefore, sin B = sin (180 - B)

Given:

\(\implies \dfrac{\sin(180-B)}{65}=\dfrac{\sin(45)}{46.17801333...}\)

\(\implies \sin(180-B)=\dfrac{65 \sin(45)}{46.17801333...}\)

\(\implies 180-B=84.45515638...\)

\(\implies B=180-84.45515638...\)

\(\implies B=95.54484362...\)

Therefore, B = 95.5° (nearest tenth)

** Note:  if you use the rounded solution for c, where c = 46.2, in this calculation, then angle B will be 95.8° to the nearest tenth**

x = 65° and y = 77.5°.

The triangle with the 50 degree angle and x, is an isosceles triangle. That means that the other unlabeled angle is also equal to x degrees.

x + x + 50 = 180

2x + 50 = 180

2x = 130

x = 65°.

Since x = 65 degrees, and the two angles make a 90 degree angle, the other unlabeled angle will be 90 - 65 = 25 degrees.

Since the other triangle is also isosceles, that triangle has two angles that measure y degrees and one angle measuring 25 degrees.

y + y + 25 = 180

2y + 25 = 180

2y = 155

y = 77.5°.

Answer:

boys=112

Step-by-step explanation:

g+b=208

6b=7g

6b=7(208-b)

6b=1456-7b

6b+7b=1456

113b=1456

divide both of them by 13 it gives 112 boys

Answer:

26/16    or 1  7/19