0.00000002 in scientific notation

Final answer:

To find the height of the taller sign, we can use similar triangles and the concept of proportions and  the height of the taller sign comes out o be 12 feet.

Explanation:

To find the height of the taller sign, we can use similar triangles and the concept of proportions. The height of the shorter sign is given as 12 feet, and its corresponding shadow length is 25 feet. We can set up the proportion:

Height of taller sign / Length of its shadow = Height of shorter sign / Length of its shadow

Substituting the given values, we can solve for the height of the taller sign:

Height of taller sign = (Height of shorter sign / Length of its shadow) x Length of its shadow

Plugging in the values, we get:

Height of taller sign = (12 feet / 25 feet) x 25 feet

Height of taller sign = 12 feet

Therefore, the height of the taller sign is 12 feet.

Using the formula for the area of a sector, we substitute provided values to find the radius of the circle. Solving the equation, we find the radius to be √6 inches.

The subject of the question is related to geometry and involves understanding the relationship between the area of a sector and the radius of the circle it is part of. The sector is formed by a central angle of 45 degrees and its area is given as 2π/3 square inches.

In order to find the radius of the circle, we can use the formula for the area of a sector, which is (θ/2π) * πr2, where θ is the central angle, π is a mathematical constant, and r is the radius of the circle.

Considering 360 degrees as 2π radians, the angle is 45 * (2π/360) = π/4 radians. Hence substituting the values in the area equation we get; 2π/3 = (π/4)/2π * πr2. If we solve this equation for 'r', we get r = √6 inches as the radius of the circle.

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The problem is a simple division process. We set up the equation where the number of buckets, B is calculated by the total quantity of paint in gallons, divided by how many gallons each bucket holds. Solving this equation, we discover that 30,000 gallons of paint can fill 6,000 buckets.

We can solve this problem by using a simple division process. Each bucket holds 5 gallons. So, if we have 30,000 gallons, we need to find out how many 5-gallon buckets this amount equals to.

If we denote the number of buckets by B, we can write an equation as follows:

5B = 30000.

To find B, we solve the equation by dividing both sides by 5: B = 30000/5

So, using a calculator, we find that B = 6000 buckets.

Therefore, the facility would be able to give away 6000 buckets of paint.

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Utilize trigonometric identities to find exact values without decimals:

To find the exact values of the given trigonometric expressions, we can use the trigonometric identity sine of the sum of angles: sin(A + B) = sinA x cosB + cosA  x sinB.

1. For the first expression, sin(96°)cos(264°) + cos(96°)sin(264°), using the identity, it simplifies to sin(96° + 264°), which equals sin(360°), and sin(360°) equals 0.

2. For the second expression, sin(258°)cos(33°) - cos(258°)sin(33°), applying the identity yields sin(258° - 33°), which is sin(225°), and sin(225°) simplifies to -√2/2.

Answer:

is there another example i really need this..?

sorry if i took the points..

Answer:  The number of general admission tickets that were sold is 148.

Step-by-step explanation:  Given that a total of 210 people attended the opening night of a School Musical, where students tickets cost $3 each while general admission tickets cost $7.50 each.

The total sales were $1,296.

We are to find the number of general admission tickets that were sold.

Let x and y represents the number of student tickets and the general admission tickets respectively that were sold.

Then, according to the given information, we have

[tex]x+y=210\\\\\Rightarrow x=210-y~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~(i)[/tex]

and

[tex]3x+7.50y=1296\\\\\Rightarrow 3(210-y)+7.50y=1296~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~[\textup{Using equation (i)}]\\\\\Rightarrow 630-3y+7.50y=1296\\\\\Rightarrow 4.50y=1296-630\\\\\Rightarrow 4.50y=666\\\\\Rightarrow y=\dfrac{666}{4.50}\\\\\Rightarrow y=148.[/tex]

Thus, the number of general admission tickets that were sold is 148.

Final answer:

The gradient of the function [tex]F(x, y, z) = x^2yz - xyz^3[/tex] can be found by taking the partial derivatives with respect to each variable x, y, and z.

Explanation:

The gradient of a function is a vector that points in the direction of the steepest increase of the function at a particular point. To find the gradient of the function [tex]F(x, y, z) = x^2yz - xyz^3[/tex], we need to find the partial derivatives with respect to each variable.

The partial derivative with respect to x is: [tex]Fx = 2xyz - yz^3[/tex]

The partial derivative with respect to y is: [tex]Fy = x^2z - xz^3[/tex]

The partial derivative with respect to z is: [tex]Fz = x^2y - 3xyz^2[/tex]

The mean of the dataset is 9.3, the median is 10, and the mode is 13.

To find the mean, median, and mode of the data set 15, 13, 9, 9, 7, 1, 11, 10, 13, 1, 13, follow these steps:

1. Mean

⇒ 15 + 13 + 9 + 9 + 7 + 1 + 11 + 10 + 13 + 1 + 13 = 102

⇒ 102 ÷ 11 = 9.3 (rounded to the nearest tenth)

The mean is 9.3.

Median

First, arrange the numbers in ascending order: 1, 1, 7, 9, 9, 10, 11, 13, 13, 13, 15

The 6th number (since there are 11 numbers) is 10.

The median is 10.

Mode

In this data set, 13 appears three times.

The mode is 13.

Complete question:

Find the mean, median, and mode of the data set. Round to the nearest tenth. 15, 13, 9, 9, 7, 1, 11, 10, 13, 1, 13

To make fruit punch with a given ratio of 2 cups of grape juice for every 3 cups of apple juice, you will need 8 cups of grape juice to mix with 12 cups of apple juice.

To answer how many cups of grape juice will be needed when you have 12 cups of apple juice to make a fruit punch, you first look at the ratio given for the punch, which is 2 cups of grape juice for every 3 cups of apple juice. The question provides us with a ratio: 2 cups of grape juice to 3 cups of apple juice. To maintain this ratio with 12 cups of apple juice, we will have to calculate the equivalent amount of grape juice.

Set up a proportion like this:

Cross-multiply to find the value of x:

Therefore, you will need 8 cups of grape juice to make the fruit punch with your 12 cups of apple juice.

Answer:

The correct option is D. 3,000

Step-by-step explanation:

Step 1 : Using the cash balance shown on the bank statement, add back any deposits in transit. : 2000 + 2500 = $4500

Step 2 : Deduct any outstanding checks : 4500 - 1500 = $3000

This will provide the adjusted bank cash balance.

Step 3 : Deduct any bank service fees, penalties, and NSF checks. This will arrive at the adjusted company cash balance : 3250 - (205 + 45) = $3000

After reconciliation, the adjusted bank balance should match with the company’s ending adjusted cash balance.

So, the adjusted cash balance at the end of April is $3000

Answer:

3.38461

Step-by-step explanation:

The given number is 3.38461370132 and we have to round it to the nearest hundred-thousandth.

In order to round this number to nearest hundred-thousandth, we round the fifth number after the decimal point.

So, must see if the sixth digit is less than 5 or not. If it is five or greater than five then we add 1 to the previous digit otherwise it will not change.

The fifth digit is  1

And the sixth digit is 3 < 5

hence, we'll keep the 5th digit as it is.

So, when rounded to the nearest hundred-thousandth the number is 3.38461

Answer: y minus 1.9 equals negative 1.8 open parentheses x plus 0.5 close parentheses.

Step-by-step explanation:

The point slope form of a line that has slope m and passes through (a,b) is given by :-

[tex](y-b)=m(x-a)[/tex]

Given : Slope = -1.8 and Point  (a,b) = (-0.5, 1.9)

Then, the point-slope form of a line that has a slope of -1.8 and passes through the point (-0.5, 1.9) will be :-

[tex](y-1.9)=-1.8(x-(-0.5))\\\\\Rightarrow\ (y-1.9)=-1.8(x+0.5)[/tex]

Hence, the correct option is y minus 1.9 equals negative 1.8 open parentheses x plus 0.5 close parentheses.

Answer:

what is the reflection rule

Step-by-step explanation:

In mathematics, a reflection is a mapping from a Euclidean space to itself that is an isometry with a hyperplane as a set of fixed points; This set is called axis in 2 dimensions or plane in 3 dimensions of reflection.

Answer:

3 more males  than females said that swimming was their favorite.  

Step-by-step explanation:

We have been given a bar graph in which blue box represents Male and orange box represents Female.

We need to tell how many more males than females said that swimming was their favorite

Number of female in swimming are: 9

And number of male in swimming are: 12

So, we need to find how many more male that means: 12-9=3

That means 3 more males.

It can be deduced that there are 4 electron groups, 4 bonding groups, 0 lone pairs.

An electron means a very small particle that has a negative charge of electricity and it travels around the nucleus of an atom.

In this case, there are 4 electron groups, 4 bonding groups, 0 lone pairs; there are 5 electron groups, 3 bonding groups, 2 lone pairs; there are 6 electron groups, 5 bonding groups, 1 lone pair.

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Answer:

B.No the graph fails the vertical line test.

Step-by-step explanation:

A function in math is a correspondence where to any given number there is a result and it has two variables that are dependent and independent, in this case, the vertical line test is a test done to determine if a graph is a function or not, in order to test if it is a function you just draw a vertical line, parallel to the Y-axis and if it touches more than one point in the X then it is not a function, in order for a graph to be a function there must only exist one value of Y for each X value.

Possible rational roots: ±1,±2,±3,±4,±6,±12±1,±2,±3,±4,±6,±12

Actual rational roots: 1,−1,2,−2,−3

see attachments for all steps.

I find it convenient to rearrange the numbers so that positive numbers are added, negative numbers are added, then the two sums are added. Of course, you can do it any way you like. Your calculator does not care about the order of the numbers you enter.

... = (1.4 +1.8) -(5.5 +1.73 +1.09)

... = 3.2 - 8.32

... = -5.12

A) -5.12

... = (1.4 +1.8) -(5.5 +1.73 +1.09)

... = 3.2 - 8.32

... = -5.12

- Prodixy ☕

The margin of error for a sample statistic requires the population standard deviation, the desired confidence level, and the sample size. It is found by multiplying the z-score for the confidence level with the standard error, which is the population standard deviation divided by the square root of the sample size. For a 95% confidence interval, the error bound is factored into the sample mean to estimate the population mean.

The margin of error for a sample statistic depends on the level of confidence desired and the sample size. Using the population standard deviation, we can calculate the margin of error by finding the z-score associated with the desired confidence level and multiplying it by the standard error. The standard error is calculated as the population standard deviation (11.3) divided by the square root of the sample size (n).

Based on the example given referencing an error bound for the mean (3.2), a 95% confidence interval could be constructed by adding and subtracting the error bound from the sample mean (15). Therefore, the 95% confidence interval estimate for the population mean would be (11.8, 18.2).

When a sample standard deviation is provided instead of a population standard deviation, and if the sample size is small, the Student's t-distribution should be used instead of the normal distribution.

For a 95% confidence interval, we generally use 1.96 as the z-score for a normal distribution, but this value could change depending on specific confidence levels or other distributions like the t-distribution.

1. Draw the perpendicular line to the given line that passes through the point Q. With this aim you should draw a circle with center at point Q and radius that is greater than distance form point Q to the given line. Then match these two points of intersection of this circle with given line as A and B and draw two circles with centers at points A and B and radii that are greater than half of distance between points A and B. These two circles will intersect, combine two points of intersection of these points, this line will be perpendicular to given line.

2. Draw a circle with center at Q and match two points of intersection with perpendicular as E and F.

3. Draw two circles with centers at points E and F and radii that are greater than radius of previous circle. Combine two points of intersection of these circles, this line will be parallel tj the given line.

Taking into account the solution, you can conclude that correct choice is B.

To correctly construct a line parallel to line l through point q, mark point q, use a straightedge to extend from q, and then use a compass to copy the angle and distance from line l, ensuring the newly drawn line is parallel to l.

To construct a line parallel to a given line l and passing through a given point q, one must follow specific geometric principles. This type of construction is often illustrated in diagrams where the correct application of tools such as a ruler and compass is shown.

First, a point q is marked. A straightedge or ruler is used to draw a line transcending the point q. Then, using a compass, the angle between the original line l and any point on it is copied. The compass's width is set to the distance between two points on line l, and the same distance is marked from point q on the drawn line. A line is then constructed using the copied angle and marking, ensuring the new line is parallel to line l.

This process is comparable to the methods used in various scientific and economic models, such as those discussed in the supplied information, where parallel lines represent equivalent conditions or when shifts in lines are required to indicate changes in intercepts.

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