spam: a researcher reported that 71.8% of all email sent in a recent month was spam. a system manager at a large corporation believes that the percentage at his company may be 70% . he examines a random sample of 500 emails received at an email server, and finds that 373 of the messages are spam. can you conclude that the percentage of emails that are spam is greater than 70% ? use both

Answer:

To find the resistance of a resistor, you can use the formula R = V / I, where R is the resistance in ohms, V is the voltage in volts, and I is the current in amperes. Using the values provided, we can calculate the resistance as follows:

R = 0.5 V / 0.03 A = 16.67 ohms

Rounded to the nearest hundredths, the resistance is 16.67 ohms.

Answer:

Exact form:

[tex]s = - \frac{60}{13} [/tex]

Decimal form:

[tex]s = - 4.615384[/tex]

Mixed Number Form:

[tex]s = - 4 \frac{8}{13} [/tex]

Answer: 3(x+4)

Step-by-step explanation:

Let's start with what we know. To factor problems, we just find a common divisor. Here, the common divisor is 3 so:

3(x+4)

The number pattern is 1, 1 ,2,3,7,23 ,164,3,776

What is the definition of a number pattern?

Number pattern is a pattern or sequence in a series of numbers. This pattern generally establishes a common relationship between all numbers.

1 + 1 = 2 + 0 = 2

3 x 2 = 6 + 1 = 7

7 x 3 = 21 + 2 = 23

23 x 7 = 161 + 3 = 164

164 x 23 = 3772 + 4 = 3776

Therefore, The number pattern is 1, 1 ,2,3,7,23 ,164,3,776

To learn more about the number pattern check the given link

brainly.com/question/28007133

#SPJ1

The angle B for the triangle ABC has a measure of 118° so the correct option is 118°.

The angle B and its exterior angle lie on a straight line, thus their sum is equal to 180°

From the question, we are given that;

m∠B = (12x − 26)° and the exterior angle = (7x − 22)°

so;

12x - 26 + 7x - 22 = 180° {collect like terms}

19x - 48 = 180°

19x = 180° + 48° {add 48° to both sides}

19x = 228°

x = 228°/19 {divide through by 19}

x = 12

Therefore, by putting the value 12 for x in m∠B = (12x − 26) we get the angle B as;

B = 12(12) - 26

B = 144 - 26

B = 118°

In conclusion, the triangle ABC, with m∠B = (12x − 26)° and the measure of the exterior angle to ∠B is (7x − 22) have the angle B equal to 118°.

Know more about triangles here:https://brainly.com/question/17972372

#SPJ1

The measures that the third piece cannot assume are given as follows:

A set of measurements can represent a triangle if the sum of the two smaller measurements is greater than the greater measures.

The sum of the measurements in this problem is given as follows:

x + y + z = 10.

The first piece is twice as long as the second,hence:

x = 2y.

Thus:

3y + z = 10.

The condition needed for a triangle to be formed is given as follows:

The options are missing, hence the answer was given in general terms, with the concept used presented.

More can be learned about set of measurements and triangles at brainly.com/question/24432457

#SPJ1

There are 270725 different ways to select 4 from 52 cards if I don't care about the order of cards in my hand.

Permutation and combination: The process of ordering objects or numbers is known as permutation. Combinations are a method of choosing items or numbers from a collection or group of items so that the order of the items is irrelevant.

Combinations are used to group objects or to determine how many subgroups can be formed from the given collection of objects. Additionally, we use permutations to determine the number of potential combinations of unrelated objects.

For example, if we want to select 2 players from 6. This will be:

= 6! / 2! (6 - 2)!

= 15 ways

In the given question use the combination. We can write as:

[tex]52C_{4}[/tex] = 52!/4! (52-4)!

This expression could be written in the form

[tex]52C_{4}[/tex] = 52!/4! (52-4)!

[tex]52C_{4}[/tex] = 52!/(4! (48)!)

[tex]52C_{4}[/tex] = 52 x 51 x 50 x 49 x 48!/(4 x 3 x 2 x 48!)

As, 48! cancel out. We get,

[tex]52C_{4}[/tex] = 52 x 51 x 50 x 49/24

       = 6497400/24 = 270725

Hence, there are 270725 ways.

To learn more about combination visit: https://brainly.com/question/29594894

#SPJ4

Answer: in every case, the first two number multiplied equal the third number, I don't quit understand if that's the answer you were looking for,

but that's the first thing that occurred to me

The percentage of the seats in the theater that were filled by the 6th graders on the trip is 88%.

Given that the middle school took all of its 6th-grade students on a field trip to see a ballet at a theater that has 1500 seats and the students filled 1320 of the seats in the theater.

The percentage of the seats in the theater were filled by the 6th graders on the trip will be:

= Number of 6th graders / Total students × 100

= 1320 / 1500 × 100

= 88%

The percentage is 88%.

Learn more about percentages on:

brainly.com/question/24877689

#SPJ1

557,568 inch³ of refrigerant can be held by the tubing.

Here we have to find how much a refrigerant can hold.

Data given:

outer diameter (d) = 78inch

outer radius(r) = 39 inch

inner diameter (d') = 34 inch

inner radius (r') = 17inch

Height (h) = 12 feet

= 12 × 12

= 144 inch

the formula to find the volume of the cylinder:

volume= пr²h

So here we get

Refrigerant hold = Volume of the outer cylinder - the volume of the inner cylinder

= πr²h - πr'²h

= πh(r² - r'²)

= π ×144 ( 39² - 17²)

= π × 144 ×56 × 22

= 22/7 × 144 × 56 × 22

= 557,568 inch³

Therefore the refrigerant can hold 557,568 inch³.

To know more about the volume of the cylinder refer to the link given below:

https://brainly.com/question/9554871

#SPJ4

Answer:

24

Step-by-step explanation:

Clara builds 3 parts of the fence per hour--

if she works for 8 hours-- we know she built 3 fences each hour-- you would multiply,

8(hours) x 3 (fences) = 24  

we know this is right because 3 parts are built for every hour

(3+3+3+3+3+3+3+3 = 24)

she worked for 8 hours and built 3 parts of the fence every hour

in total, she built 24 parts of the fence.

Answer:

10 nickels and 14 dimes

Step-by-step explanation:

Answer:

1080

Step-by-step explanation:

The 150 kilometres per hour is the rate or speed of object.

The kilometres is indicative of distance and hour is indicative of time. So the fraction of kilometre and hour indicates the speed or rate of object. The rate or speed find wide applicability in calculations and can be indicative of multiple things.

For instance, the distance covered in an hour can signify the rate of descendence of bucket in the well, landing or flying of airplane, and other things. The same thing can also indicate speed in terms of distance travelled by any object like car, bus, airplane, protons, neutrons, atoms, gas molecules in an hour.

Learn more about rate -

https://brainly.com/question/25537936

#SPJ4

I honestly do not know???

All the given options are correct.

what is random?

The lack of pattern or predictability in events, whether it be apparent or real, is referred to as randomness. Sometimes there is no order or discernible pattern or combination in a random series of events, symbols, or processes.

a)Random uncertainty present in the network may exhibit cumulative interactions reflecting the inherent randomness of independent activities within the network.

b)An activity having only a relative small amount of slack could potentially exceed the critical time calculated from the expected critical path.

c)As statistical variances rise in relation to expected duration, the range of uncertainty in near-critical paths will exhibit wider dispersion.

Hence all the given options are correct.

Learn more about random, by the following link.

brainly.com/question/24466382

#SPJ4

Complete Question
Why is it important to evaluate non-critical paths that possess large variances or path times that are close to critical in duration?

A) Random uncertainty present in the network may exhibit cumulative interactions reflecting the inherent randomness of independent activities within the network.
B) An activity having only a relative small amount of slack could potentially exceed the critical time calculated from the expected critical path.
C) As statistical variances rise in relation to expected duration, the range of uncertainty in near critical paths will exhibit wider dispersion.
D) All of the above.

The values they represent for each of the five data types shown are below.

What is hexadecimal numbers?

The base-16 numbering scheme is known as hexadecimal. Consequently, this system uses the digits 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, and 15. That implies that the two-digit decimal numbers 10, 11, 12, 13, 14, and 15 cannot exist in this numbering system unless they are represented by a single numeral.

For x434F4D50

Unsigned binary - 0000 0100 0011 0100 1111 0100 1101 0101 0000

1's complement - 1111 1011 1100 1011 0000 1011 0010 1010 1111

2's complement 1111 1011 1100 1011 0000 1011 0010 1011 1111

IEEE 754 Floating point - 207.302001953125

ASCII string -COMP

For x55544552

Unsigned integer: 0000 0101 0101 0101 0100 0100 0101 0101 0010

1's complement 1111 1010 1010 1010 1011 1011 1010 1010 1101

2's complement1111 1010 1010 1010 1011 1011 1010 1010 1110

IEEE floating point 1.4587137097728E13

ASCII string: UTER

To know more about hexadecimal numbers, click on the link

https://brainly.com/question/9543292

#SPJ4

Answer:

Step-by-step explanation:

o find the vertex of f(x)=x2−8x+7 , there are several things you can do. You could complete the square to get the equation into vertex ...

The slope of the line that passes through (4,1) and (2,5) is -2.The slope of a line can be expressed in many ways, including as a fraction, decimal, or even in terms of the angle of inclination.

The slope or gradient of a line in mathematics is a numerical representation of the steepness and direction of the line.The slope of a line is calculated by finding the difference in the y-values (rise) divided by the difference in the x-values (run).

In this case, the rise is 5 - 1 = 4 and the run is 2 - 4 = -2.

Therefore, the slope of the line is 4/-2 = -2.

In the case of a horizontal line, the slope is 0, and in the case of a vertical line, the slope is undefined. The slope is a useful tool in mathematics as it can be used to determine the equation of a line, the rate of change on a graph, or the amount of change for every unit of time. It can also be used to determine the area between two points on a graph. Slope is an essential concept in mathematics and can be used to solve many types of problems.

Learn more about slope here

https://brainly.com/question/3605446

#SPJ4

Answer:

4

Step-by-step explanation:

Slope form is:

y=mx+b

4 represents m

m is the slope, or change in y over change in x

Answer:

Using the slope-intercept form, the slope is −4 .

Step-by-step explanation:

The slope-intercept form is y=mx+by=mx+b, where mm is the slope and bb is the y-intercept.y=mx+by=mx+b

Using the slope-intercept form, the slope is −4-4.m=−4

The required equation of the line is given as y =3x - 3.

The slope of the line is a tangent angle made by line with horizontal. i.e. m =tanx where x in degrees.

here,

As given in the question that, the line is passing through the point (2,3), and the slope line is 3, the equation of the line is to be determined.

The standard equation of the line is given as
y=Mx + b
Substitute values of point and slope in the above equation,
3 = 2×3 + b
b = -3
Put this b and M in the standard given equation,
y= 3x - 3

Thus, the required equation of the line is given as y =3x - 3.

Learn more about slopes here:
https://brainly.com/question/3605446

#SPJ1

the probability as a fraction will be 3/12.

What is a fraction?

If the numerator is bigger, it is referred to as an improper fraction and can also be expressed as a mixed number, which is a whole-number quotient with a proper-fraction remainder.

Any fraction can be expressed in decimal form by dividing it by its denominator. One or more digits may continue to repeat indefinitely or the result may come to a stop at some point.

the letters of the word better appear on a child's blocks, one letter per block. the child arbitrarily selects two of the blocks.

PE followed R When 2blocks selected) - 5 = Bois obtaining R from the remaining 3 people selected 12 men & 10

Hence the probability as a fraction will be 3/12.

Learn more about Fraction, by the following link.

https://brainly.com/question/17220365

#SPJ4

Answer:

[tex]x = 180 - \frac{y}{2}[/tex]

Step-by-step explanation:

Our goal here is to isolate [tex]x[/tex] on one side of the equals sign

[tex]360 = 2x + y[/tex]

Here we have 2 terms on the right side of the equals sign, [tex]2x[/tex] and [tex]y[/tex]

in order isolate the [tex]x[/tex] term we must subtract [tex]y[/tex]

However, if we subtract [tex]y[/tex] from one side of the equation we must also do the same to the other side to a maintain balanced equation.

[tex]360 = 2x + y[/tex]
[tex]-y[/tex]           [tex]-y[/tex]

[tex]360 - y = 2x[/tex]

Now to remove "2" from [tex]2x[/tex] we must do the opposite of multiplication, which is division.

[tex]\frac{360}{2} - \frac{y}{2} = \frac{2x}{2}[/tex]

simplify.

[tex]180 - \frac{y}{2} = x[/tex]

Answer: 30n+45=t

Step-by-step explanation:

Answer:

Your answer is <, Hope it helps.

To solve a linear equation with fractions, more than two procedures are required. To undo each action in reverse order, use inverse operations.

Any number of equal parts is represented by a fraction, which also represents a portion of a whole.

If a mathematical equation contains fractions, divide both sides by the LCD to eliminate the fractions.

Solving a Multi-Step Equation in Steps

Step 1, eliminate the fractional equation.

Step 2: Remove the parentheses from either side using the Distributive Property.

Combining similar phrases on each side in step three.

Step 4: Reverse any additions or subtractions.

Step 5: Reverse division or multiplication.

For more information equations with fractions kindly visit to

https://brainly.com/question/12240039

#SPJ4

Answer:

25.9

Step-by-step explanation:

Tangents drawn from a common external point are equal.

[tex]10x-31=2x+17 \\ \\ 8x-31=17 \\ \\ 8x=48 \\ \\ x=6 \\ \\ \implies GE=29 \\ \\ DG=\sqrt{29^2-13^2} \approx 25.9[/tex]

The surface area of the plane is π√14 sq. units.

It is given in the question that the equation of the plane = x+2y+3z=1 and that of the cylinder

= x² + y² = 5                                                                  [1]      

Let J be the projection on the plane x+2y+3z=1

We know that the surface area of an equation is

∫∫j  √{1+(∂z/∂x)² + (∂z/∂y)²} dA

We know that the plane is inside the cylinder.

By using the coordinates of the cylinder we can get

x = r cosθ and y = rsinθ

Squaring both sides gives us

x² = r²cos²θ

y² = r²sin²θ

Therefore we get,

x² + y² =  r²cos²θ + r²sin²θ

= r²(cos²θ + sin²θ)

We know that cos²θ + sin²θ = 1. Hence,

=  r²                                                                         [2]

From equations [1] and equation [2] we get

r² =  5

or, r = √5

Hence,

J = {(r,θ)/ 0 ≤ r ≤ √5, 0 ≤ θ ≤ 2π}

Therefore,

x +2y + 3z =1

or, z = 1/3(1 - x - 2y)

Partially differentiating z with respect to x and with respect to y gives us

∂z/∂x = -1/3

and,

∂z/∂y = -2/3

Therefore,

We already know that Surface Area = ∫∫j √{1+(∂z/∂x)² + (∂z/∂y)²} dA

= ∫∫j √{1+ (-⅓) ² + (-⅔) ²} dA

= ∫∫j √(9+1+4)/√9 dA

= √14 /3∫∫j dA

=√14/2 [2π - 0]

= π√14 sq units

To know more about the Surface Area visit

brainly.com/question/14697595

#SPJ4

The interquartile range of the given data set is 2.16.

The given data is 2.35, 1.56, 1.77, 2.45, 6.02, 4.38, 2.77, 5.23, 2.22 and 3.26.

The Interquartile Range (IQR) formula is a measure of the middle 50% of a data set. The smallest of all the measures of dispersion in statistics is called the Interquartile Range. The difference between the upper and lower quartile is known as the interquartile range.

Formula to find the interquartile range is Interquartile range = Upper Quartile - Lower Quartile =Q2=Q3-Q1

The  order of the given data is 1.56, 1.77, 2.22, 2.35, 2.45, 2.77, 3.26, 4.38, 5.23, 6.02.

Here,

Q1= 1/4 (n+1) = 11/4= 2.75

= 2.22

Q3 = 3/4 (n+1) = 8.25

= 4.38

Q2 =4.38-2.22

= 2.16

Therefore, the interquartile range of the given data set is 2.16.

Learn more about the interquartile range here:

https://brainly.com/question/4135956.

#SPJ1

The best approximation for the area of the circle is 201.0in³

The size of a region on a planar or curved surface is expressed mathematically as area. The term "surface area" refers to the area of an open surface or the perimeter of a three-dimensional object, whereas "plane area" refers to the area of a shape or planar lamina. Area can be thought of as the amount of a certain thickness of material required to construct a model of the shape. For the areas of basic forms like circles, triangles, and rectangles, there are a number of well-known formulas. Any polygon can be divided into triangles to get its area using these formulas. Calculus is commonly needed to calculate the area of forms having curved boundaries. Calculus' historical growth was in large part driven by the issue of figuring out the area of plane figures.

It is possible to calculate a shape's area.

As we already know that,

The area of a circle=πr²

Here, r=8in

π=3.14

Then,

A=(3.14)(8²)

A=201.0in²

Therefore, Area=201.0in²

Hence, the best approximation for the area of the circle is 201.0in³

To know more about circle area, visit:

https://brainly.com/question/28642423

#SPJ4

The complete question is:

"What is the best approximation for the area of this circle? Use 3.14 to approximate pi. 25.1 in² 50.2 in² 201.0 in² 803.8 in² Circle with radius labeled 8 in."