Please help me quick it is geometry

Answer:

(-2,-4)

Step-by-step explanation:

Cant explain but its that one.

68% of the population will have a height within the range of 69 inches to 75 inches. None of the provided options match this range.

In a normal distribution, approximately 68% of the values fall within one standard deviation of the mean.

Given:

mean height = 72 inches  

standard deviation = 3 inches,

We can determine the range within which 68% of the population's heights will fall.

To calculate this range, we subtract and add one standard deviation from the mean:

Lower bound: Mean - Standard Deviation

= 72 - 3

= 69 inches

Upper bound: Mean + Standard Deviation

= 72 + 3

= 75 inches

Therefore, 68% of the population will have a height within the range of 69 inches to 75 inches.

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Answer:

31

Step-by-step explanation:

i have no idea if that is right

Answer:

\(6\leq x+15\)

Step-by-step explanation:

hope this helped

GIVEN:

We are given a set of data as indicated in the attached image.

Required;

Determine the appropriate bin size for the given set of data.

Step-by-step solution;

A bin size is basically a class interval in statistics. Its a way of sorting data in a histogram, more like categories.

We start by identifying the smallest and largest data points and these are;

Now we determine the range of the data set,

Let us now choose 5 bins.

Next step, we divide the range by the bin size and we have;

We now have a class interval of 123.4

We can round this down to 100. That means an interval of 100 between the lower limit and the upper limit of each class interval.

Therefore,

ANSWER;

Option D; 100

To find a positive number such that the sum of and is as small as possible, we need to use optimization. This problem requires optimization over a closed interval. The given problem is as follows, Let x be a positive number. Find a positive number such that the sum of and is as small as possible.

To find a positive number such that the sum of and is as small as possible, we need to use optimization. This problem requires optimization over a closed interval. The given problem is as follows, Let x be a positive number. Find a positive number such that the sum of and is as small as possible. So, we need to minimize the sum of and . Now, let's use calculus to find the minimum value of the sum.To find the minimum value, we have to find the derivative of the sum of and , i.e. f(x) with respect to x, which is given by f '(x) as shown below:

f '(x) = 1/x^2 - 1/(1-x)^2

We can see that this function is defined on the closed interval [0, 1]. The reason why we are using the closed interval is that x is a positive number, and both endpoints are included to ensure that we cover all positive numbers. Therefore, the problem requires optimization over a closed interval. This means that the minimum value exists and is achieved either at one of the endpoints of the interval or at a critical point in the interior of the interval.

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180 - 57 = 123 ( ALLIED ANGLE )

4. The formula for the volume of a cone is given as follows: V = πr²h/3.

5. The height of the cone is given as follows: 12 inches.

The volume of a cone of radius r and height h is given by the equation presented as follows, which the square of the radius is multiplied by π and the height, and then divided by 3.

V = πr²h/3.

For the cone in item 5, the parameters are given as follows:

Hence the height of the cone is obtained as follows:

π x 2.5²h = 3 x 78.54

h = 3 x 78.54/[6.25π]

h = 12 inches.

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Answer: To subtract mixed fractions with different denominators, you need to convert the mixed fractions to equivalent fractions with a common denominator. Once the fractions have a common denominator, you can simply subtract the numerators and keep the denominator the same.

Example:

the difference of 2 1/3 and 1 3/4 is 5/12.

Step-by-step explanation:

First, convert 2 1/3 to an improper fraction: 2 1/3 = 7/3

Next, convert 1 3/4 to an improper fraction: 1 3/4 = 7/4

Now, both fractions have the same denominator, 3. So, you can subtract the numerators:

7/3 - 7/4 = (7 * 4 - 7 * 3) / (3 * 4) = 28/12 - 21/12 = 7/12

Finally, convert the answer back to a mixed fraction: 7/12 = 7 ÷ 12 =  5/12.

Answer:

Measure of the shortest side is 5 cm

Measure of the longest side is 12 cm

Step-by-step explanation:

Given:

Perimeter of ∆ = 27 cm

Side lengths of ∆: x, 2x, and 3x - 3

Required:

Measure of the shortest side and measure of the longest side.

SOLUTION:

Sum of all sides of the ∆ = Perimeter

\( x + 2x + (3x - 3) = 27 \)

Solve for x

\( x + 2x + 3x - 3 = 27 \)

Collect like terms

\( 6x - 3 = 27 \)

Add 3 to both sides

\( 6x = 27 + 3 \)

\( 6x = 30 \)

Divide both sides by 6

\( x = \frac{30}{6} \)

\( x = 5 \)

Length of each side of the ∆:

x = 5 cm

2x = 2(5) = 10 cm

3x - 3 = 3(5) - 3 = 15 - 3 = 12 cm

Measure of the shortest side is 5 cm

Measure of the longest side is 12 cm

Answer:

D. perpendicular bisesecor

Step-by-step explanation:

Answer:

Lateral Surface Area = 94.25 cm²

Surface area = 150.8 cm²

Step-by-step explanation:

A cylinder has a height of 5 cm. What is the lateral and surface area of cylinder, if the circumference of one circle is 18.84 cm?

Step 1

We have to find the radius of the cylinder

We are told in the question that:

The circumference of one circle is 18.84 cm

Circumference of a circle = 2πr

18.84cm = 2πr

r = 18.84/2π

r = 2.9984791279cm

Approximately the radius = 3cm

Step 2

We find the Lateral Surface Area of the Cylinder

The formula =2πrh

r = 3cm

h = 5cm

=2×π × 3 × 5

= 94.24778 cm²

Approximately = 94.25 cm²

Step 3

We find the Surface Area of the Cylinder

The formula =2πr(r + h)

r = 3cm

h = 5cm

=2×π × 3 × 5(3 + 5)

= 150.79645 cm²

Approximately = 150.80 cm²

It has no solution but it has a answer.

Answer:h = 3/4

Exact form: h = 3/4

Decimal form: h = 0.75

Step-by-step explanation:

What I did was Factor and set each factor equal to zero. Also I tried to Find All Complex Solutions and it only has one, and how I came up with the solution is by solving the Inequality for h.

Answer:

no solution

Step-by-step explanation:

By using Disk Method, the integral that gives the volume of the solid formed by revolving the region about the y-axis of y = x^(11/12) y=1, x=0 is V = π∫(0 to 1) y^(24/11) dy = 11π/35. The option is D) is correct.

To use the Disk Method to find the volume of the solid formed by revolving the region about the y-axis, we can imagine slicing the solid into thin disks perpendicular to the y-axis, with each disk having thickness dy. The total volume of the solid can be found by summing up the volumes of all such disks from y=0 to y=1.

The equation of the curve is y = x^(11/12), so we can solve for x as x = y^(12/11). The region is bounded by y=0, y=1 and x=0.

Now, consider a thin disk located at a distance y from the y-axis. The radius of the disk is given by the distance between the y-axis and the curve at y, which is simply x = y^(12/11). Thus, the radius of the disk is r(y) = y^(12/11). The thickness of the disk is dy.

The volume of the disk is given by the formula for the volume of a cylinder, which is V = πr^2h, where r is the radius of the disk and h is its thickness. Substituting in the values we have for r(y) and dy, we get:

dV = π(y^(12/11))^2 dy

Integrating this expression over the range of y from y=0 to y=1 gives us the total volume of the solid:

V = ∫(0 to 1) π(y^(12/11))^2 dy

Simplifying the integrand, we have:

V = π∫(0 to 1) y^(24/11) dy

Using the power rule of integration, we have:

V = π[(11/35) y^(35/11)](0 to 1)

Evaluating this expression at the limits of integration, we get:

V = π[(11/35) - 0] = π(11/35) = 11π/35

Therefore, the volume of the solid formed by revolving the region about the y-axis is 11π/35 cubic units. The correct answer is D).

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_____The given question is incomplete, the complete question is given below:

Use the Disk Method to set up and evaluate the integral that gives the volume of the solid formed by revolving the region about the y-axis. y = x^(11/12) y=1, x=0

A)  V = π∫(0 to 1) y^(11/12) dy =  11π/70

B)  V = π∫(0 to 1) y^(24/11) dy =  11π/70

C)  V = π∫(0 to 1) y^(12/11) dy =  11π/35

D) V = π∫(0 to 1) y^(24/11) dy = 11π/35

Step-by-step explanation:

Examples of like terms in math are x, 4x, -2x, and 7x. These are like terms because they all contain the same variable, x. The terms 8y2, y2, and -2y2 are like terms as well. These all contain the same variable, y, raised to the second power.

Answer: its c

Step-by-step explanation:

Answer:

b = 10

Step-by-step explanation:

Expand the left side and compare the coefficients of like terms

(2x + a)(4x - 1) ← expand using FOIL

= 8x² + 4ax - 2x - a = 8x² + x(4a - 2) - a

Compare coefficients of like terms with

8x² + bx - 3

Then a = 3 ( constant term )

b = 4a - 2 ( coefficients of the x- term )

b = 4(3) - 2 = 12 - 2 = 10

Answer:

b = 10

Step-by-step explanation:

We can break those parenthesis like this

\((2x + a)(4x - 1) \\ = 2x(4x - 1) + a(4x - 1) \\ = 8{x}^{2} - 2x + 4ax - a\)

And then combine the terms end with x we get

\(8 {x}^{2} - 2x + 4ax - a \\ = 8 {x}^{2} + 4ax - 2x - a \\ = 8 {x}^{2} + (4a - 2)x - a\)

Now by comparing 2 expressions, we can see that a is 3, and b = 4a-2 = 12-2 = 10

the question is that as we increase the sample size in a one sample test for the population mean, the size of the rejection region decreases. This means that the probability of rejecting the null hypothesis when it is actually true, also known as a Type I error, decreases.

The t critical value is a constant value determined by the sample size and the significance level. It is the point at which we decide to reject or fail to reject the null hypothesis. As we increase the sample size, the t critical value moves closer to zero, but this does not have a direct impact on the probability of a Type I error.

The size of the rejection region, on the other hand, is determined by the t critical value and the variability of the sample. As the sample size increases, the variability decreases, leading to a smaller rejection region. This means that it is less likely to reject the null hypothesis when it is actually true, resulting in a lower probability of a Type I error.

Therefore, we can conclude that increasing the sample size in a one sample test for the population mean decreases the size of the rejection region and the probability of a Type I error.

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Answer:

d on edge

Step-by-step explanation:

its just the table flipped

Answer:

it's d

Step-by-step explanation:

Answer:

The first listed option (in the question)

Step-by-step explanation:

25.90/7

=$3.70

11.07/3

=$3.69

Restaurant 1 has a higher price per unit.

Answer: fast food/nuggets

Step-by-step explanation:

25.90 divided by 7 is 3.70

11.07 divided by 3 is 3.69

therefore the fast food/chicken nuggets  has a higher unit price.

Answer:

Slope = 5/2

Step-by-step explanation:

Slope = (y2-y1)/(x2-x1)

In this case the two points are (6,7) and (4,2)
Using the formula we find that the slope is:
slope = (2-7)/(4-6)
slope = -5/-2
The negatives cancel out and therefore the final answer or slope is 5/2.

Answer:

1. b

2. e

3. f

4. c

5. d

6. a

Answer:

It changes downard 0.05 units

Step-by-step explanation:

We can easily see that h(x) is linear. That means it has a constant rate of change(i.e. the answer to the question is the same no matter the interval. It could be from 2 to 3, or 4 to 5, or -10000 to -9999, but the answer is the same).

Because the answer is the same across any interval, we can take the arbitrary interval 0 to 1 because it's easy to work with.

h(0)=-0.05(0)=0

h(1)=-0.05(1)=-0.05

As we can see, from 0 to 1, and thus for any unit interval, h(x) changes downard 0.05 units.

The ANOVA procedure is a statistical approach used to determine whether the means of three or more groups are equal.

ANOVA, which stands for Analysis of Variance, is a statistical technique that compares the means of multiple groups to assess if they are significantly different from each other. It is specifically designed for situations where there are three or more groups or treatments being compared. The goal is to determine whether the observed differences in means are statistically significant or if they can be attributed to random variation. ANOVA assesses the variability between the group means and within each group, allowing researchers to make inferences about population means based on sample data. Therefore, the correct answer is that the ANOVA procedure is used to determine whether the means of three or more groups are equal.

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Consider a circle with diameter AB, and let C be a point on AB such that 2 * AC < BC. To prove that angle ABC is acute, we can use the fact that the longest side of a triangle is opposite the largest angle. By comparing the lengths of sides AB and BC, we can determine the relationship between angle ABC and its complement, angle ACB.

Since AC is shorter than BC (2 * AC < BC), we know that side BC is longer than side AC. According to the triangle inequality theorem, the sum of the lengths of any two sides of a triangle must be greater than the length of the third side. In this case, AC + BC is greater than AB.

Using the fact that the longest side of a triangle is opposite the largest angle, we can infer that angle ABC is larger than angle ACB. Since angle ACB is a right angle (as it is formed by the diameter AB and a chord), angle ABC must be acute because it is larger than the right angle ACB.

Therefore, we can conclude that angle ABC is acute based on the given conditions. The proof relies on the triangle inequality theorem and the properties of angles formed by a diameter and a chord in a circle.

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Answer: Tim weighs 90 lbs and his brother weighs 130 lbs

Answer:

The truck travels 40 miles per hour.

Step-by-step explanation:

You can use proportion to solve this.

\( \frac{2400 \: miles}{60 \: hours} = \frac{x}{1 \: hour} \\ \\ \frac{60x}{60} = \frac{2400}{60} \\ \\ x = 40\)

Usual selling price of a pair of shoes is $68 with discount 40% and sales tax 6% then total price of shoes including tax is equal to $43.248.

As given in the question,

Given that:

Usual selling price of shoes = $68

Discount on shoes =40%

Discounts an amount or percentage from something that they are selling, they take the amount or percentage off the usual price.

so, remove 40% from the price and you have left 60%

reduced price = 60% of $68

                         =60/100 * 68 = $40.8

Sales tax is 6% of reduced price= 6% of $40.8

                                           =$2.448 upto 3 decimal digits

Now , price including tax =$40.8+$2.448 =$43.248

Hence, total price including tax= $43.248

Therefore, usual selling price of a pair of shoes is $68 with discount 40% and sales tax 6% then total price of shoes including tax is equal to $43.248.

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Answer: x=-7

Step-by-step explanation:

The equation we are given is 2.5x+10=x-0.5. We can use out algebraic properties to solve for x.

2.5x+10=x-0.5       [move like terms into one side by adding and subtracting]

2.5x-x=-0.5-10       [combine like terms]

1.5x=-10.5              [divide both sides by 1.5]

x=-7

If lidocaine is injected intra-arterially, it can quickly lead to systemic toxicity. The first signs of toxicity may include circumoral numbness and tongue paresthesia, but these symptoms may be followed by more severe manifestations such as dizziness, seizures, and cardiac arrest.

The systemic effects of lidocaine are dose-dependent, meaning that the higher the dose, the more severe the symptoms.

Lidocaine is a local anesthetic that is commonly used for minor surgical procedures or dental work. It works by blocking the nerve signals that transmit pain to the brain. However, if it is injected into an artery, it can rapidly spread throughout the body and affect other organs, leading to potentially life-threatening complications.

If you suspect that a patient has been injected with lidocaine intra-arterially, it is important to act quickly. The first step is to stop the injection and monitor the patient closely for signs of toxicity. If the patient is experiencing severe symptoms, such as seizures or cardiac arrest, emergency treatment should be initiated immediately. Treatment may include administering medications to counteract the effects of the lidocaine or performing cardio-pulmonary resuscitation (CPR) if necessary.

In conclusion, the first signs of lidocaine toxicity may include circumoral numbness and tongue paresthesia, but more severe symptoms may follow, such as dizziness, seizures, and cardiac arrest. If you suspect that a patient has been injected with lidocaine intra-arterially, it is important to act quickly to prevent potentially life-threatening complications.

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