Please help Im not good at this stuff and i just need some help please, it would very appreciated

Answer:

Step-by-step explanation:

Let's denote the measure of angle EFH as x.Since Ray FG is an angle bisector of angle EFH, we know that angle GFE is also equal to x (as they are opposite angles).We also know that angle GFH is equal to 2x + 7, as given in the problem.Using the fact that the angles in a triangle add up to 180 degrees, we can write:x + x + 2x + 7 = 180Simplifying the equation, we get:4x + 7 = 180Subtracting 7 from both sides, we get:4x = 173Dividing by 4, we get:x = 43.25Therefore, the measure of angle EFH is x = 43.25 degrees.

As per the given data, Hannah's antivirus program scans the data at a unit rate of 26 megabytes/second.

An antivirus program is a type of software designed to detect, prevent, and remove malicious software or malware from a computer system.

It works by scanning files and programs on a computer for patterns that match known malware signatures or behaviors.

Part A:

To find the unit rate at which Hannah's antivirus program scans the data, we need to divide the amount of data scanned by the time taken:

Unit rate = Amount of data scanned / Time taken

In this case, Hannah's antivirus program scans 182 megabytes of data in 7 seconds:

Unit rate = 182 megabytes / 7 seconds

Simplifying this fraction gives:

Unit rate = 26 megabytes/second

Therefore, Hannah's antivirus program scans the data at a unit rate of 26 megabytes/second.

Part B:

To find the rate at which Dave's antivirus program scans the data, we can use the unit rate that we calculated for Hannah's antivirus program.

If Dave's program scans 203 megabytes of data in the same amount of time as Hannah's program, then we can set up a proportion:

Hannah's unit rate = Dave's unit rate

26 megabytes/second = Amount of data scanned by Dave's program / 7 seconds

To solve for the amount of data scanned by Dave's program, we can cross-multiply:

26 megabytes/second * 7 seconds = Amount of data scanned by Dave's program

182 megabytes = Amount of data scanned by Dave's program

Therefore, Dave's antivirus program scans 203 megabytes of data at a rate of:

203 megabytes / 7 seconds = 29 megabytes/second

Thus, Dave's antivirus program scans the data at a rate of 29 megabytes/second.

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We can use the properties of the normal distribution to calculate the probability that the total volume shipped is more than 100,000 ft3.

Assuming that the xis are independent with each one having a normal distribution, the total volume shipped can be modeled as the sum of these individual normal distributions. Since the sum of independent normal distributions is also a normal distribution, we can use the properties of the normal distribution to calculate the probability that the total volume shipped is more than 100,000 ft3.

To do this, we need to find the mean and variance of the sum of the xis. The mean of the sum is simply the sum of the means of the individual distributions, while the variance of the sum is the sum of the variances of the individual distributions.

Once we have the mean and variance of the sum, we can standardize the distribution and use a normal probability table or calculator to find the probability that the total volume shipped is more than 100,000 ft3.

In general, the probability of the sum of independent normal distributions exceeding a certain value depends on the number of distributions being summed, their means and variances, and the level of significance chosen for the test. Therefore, we need to specify these parameters to calculate the desired probability.

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The calculations are as follows:
a. 5.08 + 25.1 = 30.18 (2 decimal places)
b. 85.66 + 104.10 + 0.025 = 189.785 (3 decimal places)
c. 24.568 - 14.25 = 10.318 (3 decimal places)
d. 0.2654 - 0.2585 = 0.0069 (4 decimal places)
e. 66.77 + 17 - 0.33 = 84.44 (2 decimal places)
f. 460 - 33.77 = 426.23 (2 decimal places)

In the addition and subtraction operations, the rule for determining the number of decimal places in the result is to consider the number with the highest decimal places among the operands. The result should then be rounded to match that number of decimal places.

For example, in the calculation 5.08 + 25.1, both numbers have two decimal places. Therefore, the sum should also have two decimal places, resulting in 30.18.
Similarly, in the subtraction 24.568 - 14.25, both numbers have three decimal places. Thus, the difference should have three decimal places, resulting in 10.318.
It's important to note that in the final results, the numbers are rounded to the correct number of decimal places based on the given precision.

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Answer: A. 30 years

Step-by-step explanation:

Watching the video he explains life expectancy was very harsh. It shows all life expectancy’s were below 40 and rather closer to the average 30 years of age. At best you can hope to live to 40. If it is not A I would be very surprised. Good luck

my man your answer is b

srry if im wrong

Hello!

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19x+5+16x=180

First, add the x's together:

35x+5=180

Now, subtract 5 from both sides:

35x=180-5

35x=175

Divide both sides by 35 to isolate x:

x=5

Hope you find my answer helpful! Please give the crown if you do! (:

~SparklingFlower

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Answer:

amplitude = |-4| =4

period = 2 pi/3

phase shift = pi / 3

midline = 2

Step-by-step explanation:

f(x)=-4 cos (3x-pi)+2

The equation is in the form

f(x) = a cos (bx -c) +d  where |a| is the amplitude

period  is 2 pi /b

phase shift:  c/b

midline = d

amplitude = |-4| =4

period = 2 pi/3

phase shift = pi / 3

midline = 2

Answer:

(4, 3 )

Step-by-step explanation:

Given the 2 equations

x + 3y = 13 → (1)

5x + 6y = 38 → (2)

Multiplying (1) by - 2 and adding to (2) will eliminate the y- term

- 2x - 6y = - 26 → (3)

Add (2) and (3) term by term to eliminate y

3x + 0 = 12

3x = 12 ( divide both sides by 3 )

x = 4

Substitute x = 4 into either of the 2 equations and solve for y

Substituting into (1)

4 + 3y = 13 ( subtract 4 from both sides )

3y = 9 ( divide both sides by 3 )

y = 3

solution is (4, 3 )

Using The Weak Duality theorem ,

only change in the dual problem is that the kᵗʰ variable is replaced by μ times that variable if

the kᵗʰ primal constraint is multiplied by a nonzero scalar number (i.e., μ)

Suppose we have a primal problem of

min cᵀ x

subject to Ax=b, x≥0.

All primals have a dual and that dual is allowed. consider λ be an optimal solution of the dual. We need to see what happens when we multiply the primal's kᵗʰ constraint equation by μ≠0 (non-zero scalar)

This is wₖ=λₖ/μ and wᵢ=λᵢ for i≠k.

Multiplying the kᵗʰ constraint of primes by μ does not change the feasible region of primal and therefore the optimal solution to primes. The value z* of the best prime solution does not change.

The only change in the dual problem is that the kᵗʰ variable is replaced by μ times that variable. Since z* is the value of the original dual-optimal solution, wᵢ=λᵢand wk=λₖμ for i≠k gives a new dually feasible solution with value z*. Therefore, due to the weak duality, w must be optimal.

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Answer: 3 x 11 = 33

Step-by-step explanation: Hope it helped!

Answer:x=10

Step-by-step explanation:

First add 90+80 which is 170. Then subtract 180-170 which is 10. If i'm correct, the answer should be 10

The researchers surveyed 14,765 American high school students and found that 27.3% of those surveyed were in grade 9.

When we talk about a group of people, we often use percentages to describe how many of them belong to a particular subgroup. In this case, the subgroup we're interested in is students in grade 9. The percentage of all American high school students who are in grade 9 is 26.5%.

Now, let's look at another subgroup of students in grade 9 - those who carried a gun to school. The survey found that 4.4% of the students surveyed in grade 9 had carried a gun to school.

In statistical terms, we use the term "parameter" to refer to a characteristic of the entire population we're interested in, while "statistic" refers to a characteristic of a sample from that population.

In this case, the parameter we're interested in is the percentage of all American high school students who are in grade 9, which is 26.5%. The statistic we're interested in is the percentage of surveyed students in grade 9 who had carried a gun to school, which is 4.4%.

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The diameter of the ball is approximately 16.67 meters.

To find the diameter of the ball, we can use the relationship between the distance traveled and the number of revolutions.

The circumference of a circle is given by the formula C = πd, where C is the circumference and d is the diameter.

Given that the ball rolls a distance of 3.5 meters and makes 15.0 revolutions, we can calculate the circumference of the path it travels:

C = 3.5 m * 15.0 = 52.5 m

Since each revolution covers the circumference of the ball, we have C = πd. Plugging in the known value for C, we can solve for the diameter (d):

52.5 m = πd

Dividing both sides of the equation by π, we get:

d = 52.5 m / π

Using a calculator, we can evaluate this expression:

d ≈ 16.67 meters

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Answer:

1. \(x=3\) and \(x=2\)

2. \(x=-7\) and \(x=6\)

Step-by-step explanation: In order to solve both equations you should you factoring as it is the most efficient and quick.

For Question #1,

Factor so the expression looks like this,

\((x-3)(x-2)=0\)

then take each part

\(x-3=0\\x-2=0\)

Which means

\(x=2,3\)

For #2,

Factor so the expression looks like this,

\((x-6)(x+7)=0\\\)

then take each part

\(x-6=0\\x+7=0\)

Which means

\(x=-7,6\)

The total area of the regions between the curves is 30.88 square units

From the question, we have the following parameters that can be used in our computation:

y = eˣ and y = x²

The interval is given as

1 ≤ x ≤ 4

So, the area of the regions between the curves is

Area = ∫x² - eˣ dx

This gives

Area = ∫[x² - eˣ] dx

Integrate

Area =  x³/3 - eˣ

Recall that 1 ≤ x ≤ 4

So, we have

Area =  [1³/3 - e¹] - [4³/3 - e⁴]

Evaluate

Area =  30.88

Hence, the total area of the regions between the curves is 30.88 square units

The graph is attached

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To determine if a polynomial graph is positive or negative, you need to look at the sign of the leading coefficient of the polynomial. If the leading coefficient is positive, the graph will be positive.

If the leading coefficient is negative, the graph will be negative. This is because the highest degree of the polynomial will determine the sign of the graph as the graph will either be increasing (positive) or decreasing (negative). To determine the leading coefficient, look at the polynomial expression and identify the term with the highest degree. The sign of this term will be the sign of the graph. For example, if the highest degree is 3, then the term would be ax^3, and the graph will be positive if a is positive, and negative if a is negative.

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Yes, a triangle that has sides with lengths of 9 feet, 12 feet, and 15 feet is a right-angled triangle

A right-angled triangle can be defined as a type of triangle, having one of its interior angles equivalent to 90 degrees.

The properties of right angled triangles include;

From the information given, we have;

Hypotenuse side = 15 feet

Opposite side = 12 feet

Adjacent side = 9 feet

We can see that the properties of a right-angles triangle submits to the parameters given.

Hence, it is a right-angled triangle

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The values of a measured at two different heights may or may not be the same, depending on the nature of the thing being measured and the conditions of the measurement.

Why may or may not the values of a measured thing at two different heights be the same?

The value of a measured quantity depends on various factors such as the measurement instrument, the conditions of the measurement, and the nature of the thing being measured. In some cases, the values of a measured thing at different heights may be the same, while in other cases they may differ.

Factors that effect the measurement :
Whether the values of a measured thing at two different heights will be the same depends on the nature of the thing being measured and the conditions of the measurement. For example, if we measure the air pressure at two different heights, we may expect the values to be different, as air pressure decreases with increasing altitude. On the other hand, if we measure the temperature of a room at two different heights, we may expect the values to be approximately the same, as the temperature is usually well-mixed throughout the room.

Similarly, the values of other measured quantities such as sound intensity, light intensity, and humidity may also differ or be the same at different heights, depending on the conditions of the measurement and the nature of the thing being measured. Therefore, it is important to consider these factors when making measurements and interpreting their results.

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Answer:

y = 3/4x-3

Step-by-step explanation:

The equation of a line in slope intercept form is

y = mx+b where m is the slope and b is the y intercept

The y intercept is -3 ( where it crosses the y axis)

The slope is  change in y over change in x

We go up 3 and over to the right 4

The slope is 3/4

y = 3/4x-3

Answer:

(d)

Step-by-step explanation:

Given

See attachment for \(\triangle BCD\) and \(\triangle B"C"D"\)

Required

The transformations

Using B and B"" as points of reference, we have:

\(B = (1,4)\)

\(B"" = (5,-1)\)

The transformation is as follows:

First, reflect across y axis.

The rule is:

\((x,y) \to (-x,y)\)

So, we have:

\(B(1,4) \to B'(-1,4)\)

Next, translate 6 units right.

The rule is:

\((x,y) \to (x + 6,y)\)

So, we have:

\(B' (-1,4) \to B"(-1 + 6,4)\)

\(B' (-1,4) \to B"(5,4)\)

Lastly, translate 5 units down

The rule is:

\((x,y) \to (x,y-5)\)

So, we have:

\(B"(5,4) \to (5,4-5)\)

\(B"(5,4) \to (5,-1)\)

Hence; (d) is correct

Answer: B

Step-by-step explanation:

A factorial is multiplying the integer and all of the integers below it together.

The product of a whole number 'n' with every whole number until 1 is called the factorial. The correct option is B.

The product of a whole number 'n' with every whole number until 1 is called the factorial. The factorial of 4 is, for example, 43221, which equals 24.

The expression 7! means 7 factorial which is expanded as,

7! = 7 × 6 × 5 × 4 × 3 × 2 × 1

Hence, the correct option is B.

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Answer: (3,-2)

Step-by-step explanation: We're reflecting to the y-axis, thus, we're going to reflect to the right.

(-x,-y) ⇒ (x,-y)

Our current coordinate is (-3,-2)...let's convert it now...

(3,-2)

I hope this helps!

Answer:

(3, -2).

Step-by-step explanation:

When you reflect across the y axis the y coordinate stays the same and the x axis changes sign : (x, y) --> (-x, y).

So B (-3, -2) --> (3, -2).

Answer:

Step-by-step explanation:

(-1,4) (1,4) 2,0

The endpoint of the line segment will be (-1, 4) and (2, 0). Then the correct options are B and E.

Dilation is the process of increasing the size of an item without affecting its form. Depending on the scale factor, the object's size can be raised or lowered. There is no effect of dilation on the angle.

A line segment in mathematics has two different points on it that define its boundaries. A line segment is sometimes referred to as a section of a path that joins two places.

Section Stomach muscle has endpoints A(- 2, 8) and B(4,0). The section is widened at the beginning by a scale variable of 0.5 to make a fragment of the Stomach muscle.

The endpoint of the line segment is given as,

A = 0.5(-2, 8)

A = (-1, 4)

B = 0.5(4, 0)

B = (2, 0)

The endpoint of the line fragment will be (- 1, 4) and (2, 0). Then the right choices are B and E.

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Answer: TV = 92

Step-by-step explanation:

since U is the mid point you would set segemnts TU and UV to equal each other and solve for x . when you solve you will get x = 9 . then you would have to add TU and UV together and pull in 9 for x and you will get the answer 92

Answer:

Well all you have to do is 4x=12 but muiltuply whatever numbers add to 12.such as 3x4=12

Step-by-step explanation:

The peach grower can maximize their harvest by planting 55 trees per acre.

A peach grower finds that if he plants 80 trees per acre, each tree will yield 60 bushels of peaches.

He wants to maximize his harvest. Given that if he plants 80 trees per acre, each tree will yield 60 bushels of peaches; therefore, the yield per acre will be

,60 × 80 = 4800 bushels of peaches.

Now, let's find out how many trees should he plant per acre to maximize his harvest. Let's assume he plants x trees per acre.

Thus, the yield of each tree will decrease by (x - 80) × 2 bushels of peaches.

Therefore, the yield of each tree will be,(60 - (x - 80) × 2) bushels of peaches.And the yield per acre will be,

The yield per acre = x × (60 - (x - 80) × 2) bushels of peaches.

Now, we need to maximize the yield per acre, we can differentiate the yield per acre with respect to x and equate it to 0.

Then solve for x to find the value of x which will give maximum yield.The yield per acre

= x(60 - 2(x - 80))

= x(220 - 2x)

Differentiate the above expression with respect to x and equate it to 0,dy/dx

= 220 - 4x = 0 ⇒

4x = 220 ⇒x = 55

Hence, he should plant 55 trees per acre to maximize his harvest.

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Answer:

1/16

Step-by-step explanation:

using a^2 +2ab + b^2

(1/2)/2 = 1/16

(1/16)^2

b = 1/16

Answer:

11:45

Step-by-step explanation:

Let x be the amount of the 30% alcohol and let y be the amount of 5% alcohol.

We want the total amount to by 25 gal, then we have:

We also want the resulting mix to be 25% alcohol, this is 0.25 in decimal form; also we know that the first type of alcohol is 30% and the second is 5%, then we have:

Hence we have the system of equations:

To solve the system we solve the first equation for y:

then we plug this value of y in the second equation:

Once we have the value of x we plug it in the expression we found for y:

Therefore, the mixture will have 20 gallons of 30% alcohol and 5 gallons of 5% alcohol.