If 55% of the people at a certain conference are doctors, 49% are women, and 29% are female doctors, what is the probability that a person selected at random at this conference is a doctor or woman (or both)?

Answers

Answer 1

[tex]doctors = 55\% \\ woman = 49\% \\ both = 29\%[/tex]

[tex]p(a) =0.55 + 0.49 - 0.29 \\ p(a) = 0.75[/tex]


Related Questions

Eva bought 3 rainbow trout for dinner. They weighed 3 Ib 5 oz, 2 Ib 12 oz, and 3 Ib 8 oz. She cut off the heads and the tails and was left with 8 Ib 2 oz. What was the amount of waste

Answers

The amount of waste is 22 oz

How to determine the waste amount?

The weights of the 3 rainbow trouts are:

3 Ib 5 oz, 2 Ib 12 oz, and 3 Ib 8 oz.

The total weight is:

Total = 3 Ib 5 oz + 2 Ib 12 oz + 3 Ib 8 oz

Evaluate the sum

Total = 8 Ib 25 oz

The amount she was left with is 8 Ib 2 oz

Subtract this amount from the total

Waste = 8 Ib 25 oz - 8 Ib 2 oz

Evaluate

Waste = 22 oz

Hence, the amount of waste is 22 oz

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]Triangle R Q S is cut by line segment T V. Line segment T V goes from side Q R to side R S. The length of R V is x + 10, the length of V S is x, the length of R T is x + 4, and the length of T Q is x minus 3.
Which value of x would make Line segment T V is parallel to Line segment Q S?

3
8
10
11

Answers

The value of 'x' that would make Line segment T V is parallel to Line segment Q S is 10. Option C

How to determine the value

It is important to note that for line TV to be parallel to line QS, the sides of the triangle must be divided equally.

Thus, we have

RT/TQ = RV/VS

RT = x + 10

TQ = x - 3

RV = x + 10

VS = x

Substitute the value

[tex]\frac{x + 4}{x-3} = \frac{x + 10}{x}[/tex]
Cross multiply

(x+ 4) × x = (x + 10) × (x-3)

x² + 4x =  x² -3x + 10x -30

Divide through by x²

4x = -3x + 10x - 30

Collect like terms

4x + 3x - 10x = - 30

-3x = -30

x = -30/ -3

x = 10

Thus, the value of 'x' that would make Line segment T V is parallel to Line segment Q S is 10 Option C

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A deck has side lengths 16 feet, 18 feet, 16 feet, 8 feet, and 12 feet.

The dimensions of a proposed deck are written on the floor plan. What is the area of the proposed deck? Round to the nearest square foot.

317 square feet
413 square feet
437 square feet
513 square feet

Answers

The area of the deck is 413 square feet

How to determine the area of the proposed deck?

Start by calculating the area of the outer rectangle using:

Area = Length * Width

This gives

Area1 = (18 + 12) * (16 + 8)

Area1 = 720

Next, calculate the area of the inner rectangle using:

Area = Length * Width

This gives

Area2 = 16 * (18 + 8)

Area2 = 416

Subtract these areas

A1 = Area1 - Area2

A1 = 720 - 416

A1 = 304

Next, calculate the area of the outer semicircle using:

Area = 0.5πR²

This gives

Area1 = 0.5 * 3 * (12-1)²

Area1 = 181.5

Next, calculate the area of the inner semicircle using:

Area = 0.5πr²

This gives

Area2 = 0.5 * 3 * (7)²

Area2 = 73.5

Subtract these areas

A2 = Area1 - Area2

A2 = 181.5 - 73.5

A2 = 108

Add A1 and A2

A = 304 + 108

Evaluate the sum

A = 412

Hence, the area of the deck is 413 square feet

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For the following exercises, graph the given functions by hand.
48. f(x) = | 2x − 4 | − 3

Answers

A horizontal translation of the function by 4 units and a vertical translation down by 3 units

Graph of modulus function

The parent function of the given function is g(x) = |x|. The resulting function (x) = | 2x − 4 | − 3 shows the following translations

A vertical stretch of the graph by 2 units

A horizontal translation of the function by 4 units and a vertical translation down by 3 units

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In circle S, m/TSU = 72º and the length of TU = 67. Find the length of ST.

Answers

Using the arc length formula, the length of ST in the circle is: 15 units.

What is the Arc length Formula?

Arc length of a circle = ∅/360 × 2πr.

In the image given, we have:

∅ = m∠TSU = 72º

Arc length TU = 6π

r = ST

Plug in the values

6π = 72/360 × 2π(ST)

6π = 0.2 × 2π(ST)

6π/2π = 0.2 × ST

3 = 0.2(ST)

3/0.2 = ST

ST = 15 units.

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Simplify and state any restrictions on the variable. Remember the order of operations. Show all your work for full
marks!

Answers

Step-by-step explanation:

6+8-90+90008-70000000

Which of the following expressions are equivalent to -3 x -6/10

A. 3/6 x 1/10

B. -3/10 x -6

C. None of the above

Answers

ANSWER : B

A
Cross out the common factor:
Determine the sign:
Write as a single fraction:
Calculate the product or quotient:
Write as a single fraction:
Calculate the product or quotient:
Cross out the common factor:
Check equivalency: False
Answer: False
B
Cross out the common factor:
Determine the sign:
Write as a single fraction:
Calculate the product or quotient:
Determine the sign for multiplication or division:
Cross out the common factor:
Write as a single fraction:
Calculate the product or quotient:
Check equivalency: True
Answer: True
C
Cross out the common factor:
Determine the sign:
Write as a single fraction:
Calculate the product or quotient:
Write as a single fraction:
Calculate the product or quotient:
Cross out the common factor:
Check equivalency: False
Answer: False

Triangle QRS is to be dilated using the rule D Subscript P, three-fourths.

Point P is the center of dilation. Triangle Q R S is shown. The length of P S is 8.

What will be the distance from the center of dilation, P, to the image S'?

2 units
4 units
6 units
8 units

Answers

The distance from the center of dilation, P, to.the image vertice S' is; 6 units.

What is the distance from the center of dilation, P, to the image S'?

It follows from the task content that the center of dilation of the triangle QRS is point P and the length of segment PS in the pre-image is; 8 units.

Ultimately, since the dilation factor is; three-fourths, it therefore follows that the distance of point P to S' in the image is; (3/4) × 8 = 6 units.

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Answer: OPTION C

Step-by-step explanation:

6 in.
If you'd like,
you can use a
10 in.
SA 2πr² + 2πrh
Use 3.14 for T.
Find the surface area of
a cylinder with a height
of 10 inches and base
diameter of 6 inches.
Do NOT round your answer.
SA [?] square inches
=

Answers

The surface area of the cylinder is 244. 92 inches²

How to find surface area of a cylinder?

surface area of a cylinder = 2πr(r + h)

where

r = radiush = height

Therefore,

r = 6 / 2 = 3 inches

h = 10 inches

surface area of a cylinder =  2 × 3.14 × 3(3 + 10)

surface area of a cylinder = 18.84(13)

surface area of a cylinder = 244.92

surface area of a cylinder = 244. 92 inches²

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Kim scored 15 points, which was 30% of the team's t
How many points did the team score in all?

Answers

Answer:

50 points

Step-by-step explanation:

Let the total points scored by the team = x

30% of x = 15 points

     [tex]\sf \dfrac{30}{100}*x = 15\\\\[/tex]

              [tex]\sf x = 15* \dfrac{100}{30}\\\\ x = 50[/tex]

The team scored 50 points.

There are exactly 1,944 of the 12-, or 0.5-, cubes inside a rectangular prism.

What is the volume of the rectangular prism in cubic centimeters?

Enter your answer as a number, like this: 42

Answers

The volume of the rectangular prism is 3359232 cubic centimeters

How to determine the volume?

The length of the cube is given as:

Length, l = 12 cm

The volume of a cube is:

[tex]V = l^3[/tex]

So, we have:

[tex]V = 12^3[/tex]

Evaluate

V = 1728

The volume of 1944 cubes is then calculated as:

Volume = 1728 * 1944

Evaluate

Volume = 3359232

Hence, the volume of the rectangular prism is 3359232 cubic centimeters

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Complete question

There are exactly 1,944 of the 12 cm, or 0.5 foot cubes inside a rectangular prism.  What is the volume of the rectangular prism in cubic centimeters?

Triangle A B C is shown. Side A C has a length of 27. Side C B has a length of 54.
Based on the diagram, which expresses all possible lengths of segment AB?

AB = 25
27 < AB < 81
AB = 85
AB< 27 or AB > 81

Answers

All possible lengths of segment AB wil be 27 < AB < 81.Option b is correct

What is the triangle?

A triangle is a three-sided polygon. It is one of the most fundamental geometric forms.

Any two triangle sides' lengths added together are longer than the third side's length.

The triangular inequality theorem is applied in three ways;

1.

AC+BC > AB

27+54 > AB

81 > AB

2.

27+AB > 54

AB> 54-27

AB > -27

3.

54+AB > 27

AB > 27-54

AB > -27

All possible lengths of segment AB wil be 27 < AB < 81.

Hence option b is correct

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Answer:

27 < AB < 81

Step-by-step explanation:

The answer above is correct.

Benoît has a home business selling antique watches. If he sells x watches, in thousands, his profit, P, in thousands of dollars, is given by

P=−50x^2 + 550x − 900

Determine Benoît’s break-even points

Determine his maximum profit and how many antique watches he must sell to achieve this profit.

Answers

The number of watches that just be sold is 90 and the profit is -356400.

How to calculate the profit?

From the information given, the equation is given as:

P = −50x² + 550x − 900

P = -5x² + 55x - 90

= -5x² + 45x + 10x - 90

= -5x(x - 9) + 10(x - 9)

= (-5x + 10)(x - 9)

x - 9 = 0

x = 0 + 9 = 9

The watches that must be sold will be (9 × 10) = 90

The profit will be:

P = −50x² + 550x − 900

P = -50(90)² + 550(90) - 900

P = -405000 + 49500 - 900

P = -356400

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there are 3 students in a class who are left-handed. given that the percentage of left handed students in the class is 7.5%, find the total number of students in this class

Answers

Answer:

40 total students

Explanation:

Total students: 100%

Let the number of total students be x.

Solving stepwise:

7.5% : 100% --> 3 : x

[tex]\rightarrow \sf \dfrac{7.5}{100} = \dfrac{3}{x}[/tex]

[tex]\rightarrow \sf 7.5x = 3(100)[/tex]

[tex]\rightarrow \sf 7.5x = 300[/tex]

[tex]\rightarrow \sf x =40[/tex]

what are the domain and range of the function represented by the set of ordered pairs {(-6,5),(-3,2),(-1,0),(5,-4)}

Answers

Answer:

Greetings !

domain ={-6,-3,-1,5}

to find domain just take the first values of each ordered pairs

range ={5,2,0,-4}

to find the range just take the second values of each ordered pairs.

The label of a vial states that it contains 1g in 10ml.you know that 9.6 ml were added.what is the powder volume

Answers

Vial contains 0.96g powder.

Proportion is used to show how quantities and amounts are related to each other. The amount that quantities change in relation to each other is governed by proportion rules.

A direct and inverse proportion are used to show how the quantities and amount are related to each other. They are also mentioned as directly proportional or inversely proportional. The symbol used to denote the proportionality is ‘∝‘.  For example, if we say, a is proportional to b, then it is represented as “a ∝ b” and if we say, a is inversely proportional to b, then it is denoted as ‘a∝1/b’

The given question is the example of direct variation.

Powder volume ∝ Liquid volume

∴ We can apply cross multiplication method

Let powder volume be x

1g→ 10ml

x→ 9.6ml

cross multiplying

1 x 9.6 = 10 x [tex]x[/tex]

x = 0.96 g

Thus Vial contains 0.96g powder.

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Find from the first principle the derivative of y=sinsquare (3x-5).

Answers

Answer:

the answer is x= 3/4 I think

alguien me puede ayudar por favor se los agradeceria mucho

Answers

El cuadrado completo es:

[tex]\left[\begin{array}{ccc}0.048&0.056&0.016\\0.008&0.04&0.072\\0.064&0.024&0.032\end{array}\right][/tex]

¿Como completar el cuadrado magico?

Tenemos el cuadrado:

[tex]\left[\begin{array}{ccc}0.048&a&0.016\\b&c&0.072\\0.064&e&f\end{array}\right][/tex]

Y queremos encontrar los valores de las letras, tal que cada suma de columna, fila y de cada diagonal de 0.12,

Entonces tenemos:

0.048 + b + 0.064 = 0.12

b = 0.12 - 0.048 - 0.064 = 0.008

0.016 + 0.072 + f = 0.12

f = 0.12 - 0.016 - 0.072 = 0.032

Tambien las diagonales deben dar 0.12, entonces:

0.064 + c + 0.016 = 0.12

c = 0.12 - 0.016 - 0.064 = 0.04

Reemplazando esos valores obtenemos:

[tex]\left[\begin{array}{ccc}0.048&a&0.016\\0.008&0.04&0.072\\0.064&e&0.032\end{array}\right][/tex]

Ahora las filas tambien deben dar 0.12:

0.048 + a + 0.016 = 0.12

a = 0.12 - 0.048 - 0.016 = 0.056

0.064 + e + 0.032 = 0.12

e = 0.12 - 0.064 - 0.032 = 0.024

El cuadrado completo es:

[tex]\left[\begin{array}{ccc}0.048&0.056&0.016\\0.008&0.04&0.072\\0.064&0.024&0.032\end{array}\right][/tex]

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Triangles A B C and L M N are shown. Angle B A C is 58 degrees. Angle M L N is 78 degrees. Sides A B and L M are congruent. Sides A C and L N are congruent.

Given AC = LN and BA = ML, which statement must be true?
BC < MN
BC > MN
BC = MN
BA = LN

Answers

A triangle is a three-edged polygon with three vertices. It is a fundamental form in geometry. The correct option is A, BC < MN.

What is a triangle?

A triangle is a three-edged polygon with three vertices. It is a fundamental form in geometry. The sum of all the angles of a triangle is always equal to 180°.

As per the given conditions, the angle that will be opposite to ∠A is BC and  ∠L is MN.

Now since the measure of ∠L is more than the measure of ∠A, therefore, the side MN will be greater than BC.

Hence, the correct option is A, BC < MN.

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Answer: Option 1 or A. BC<MN

Step-by-step explanation: Trust Me!

The answer is correct on Edge.  The proof is in the pic below.

Goodluck everyone! :)

Given AC = LN and BA = ML, which statement must be true?

A. BC < MN

Which expression is equivalent to the difference shown?
5x+1/5x - 4x+1/4x

Answers

Answer:

1 9/20x or 29/20x

Step-by-step explanation:

Reorder so it can be seen better

5x-4x+1/5x+1/4x

Combine like terms

x+1/5x+1/4x

Common multiple

x+4/20x+5/20x

Combine like terms

9/20x+x

Finalize

29/20x

Simplified

1 9/20x

Answer: -1/20x

Step-by-step explanation:

got all 5 correct this one was one of my five

Which equation represents the transformed function below?
parent function; y=√x
= transformed function

Answers

If we know the concepts of transformations and horizontal translation and that f(x) = √x and k = - 2, then the transformed function is g(x) = √(x + 2).

How to determine the transformed function in terms of its parent function

The transformation of functions are operations which modify the relationship between input and outputs in a function. The parent function represents a canonical square root function and the transformed function is the consequence of applying a horizontal translation.

This kind of transformation is defined by the following expression:

g(x) = f(x - k)     (1)

Where k represents a rightward translation for k > 0.

If we know that f(x) = √x and k = - 2, then the transformed function is g(x) = √(x + 2).

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Find the tangent of each acute angle in the triangle below. Select all that apply.
OPTIONS:
17/15
8/15
15/8
8/9
8/17

Answers

Answer: 8/15, 15/8

Step-by-step explanation:

By the Pythagorean theorem, the length of the unknown side is

[tex]\sqrt{17^{2}-8^{2}}=15[/tex]

So, the tangents of the acute angles are [tex]\boxed{\frac{8}{15}, \frac{15}{8}}[/tex]

Suppose that there are 9 faculty members in the math department and 11 in the computer science department. How many ways are there to select a committee to develop a discrete math course if the committee is to consist of three faculty from the math department and four from the computer science department

Answers

There are 9240 ways to select a committee to develop a discrete math course if the committee is to consist of three faculty from the math department and four from the computer science department.

It is given that there are 9 faculty members in the math department and 11 in the computer science department.

[tex]C^{9} _{3} * C^{11} _{4}[/tex]

[tex]= \frac{9!}{(9-3)!3!} * \frac{11!}{(11-4)!4!}\\= 28 * 330\\= 9240[/tex]

Therefore, there are 9240 ways to select the committee.

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Find the value of x and uh yeah

Answers

Answer:

2nd option

Step-by-step explanation:

the quadrilateral has 1 pair of parallel sides and is therefore a trapezoid.

• each lower base angle is supplementary to the upper base angle on the same side, that is

∠ 1 + ∠ 2 = 180° , so

x + x + 50 = 180

2x + 50 = 180 ( subtract 50 from both sides )

2x = 130 ( divide both sides by 2 )

x = 65

then

∠ 1 = x = 65°

∠ 2 = x + 50 = 65 + 50 = 115°

A local pizza shop has a membership for frequently buyers. The membership cost $5 per month and members get a diamond price of 1.75 per slice of pizza. Lamonte purchased a membership to this pizza shop. How much would lamonte have to pay the pizza shop if he brought 20 slices of pizza this month? What would be the monthly cost for x slices of pizza?

Answers

Answer:

40 Including membership Price

35 Just for Pizza

Step-by-step explanation:

$5 for Membership for the month (Not sure if the final answer includes this or not)
1.75 x 20 = $35 for Pizza

Solve this system of linear equations. Separate
the x- and y-values with a comma.
-7x + 6y = -5
2x + 4y = -10
Enter the correct answer.

Answers

Answer: x=-1 and y=-2

Please help if you want, would really appreciate it

Answers

Answer: 140°

Step-by-step explanation:

- all straight lines are 180°

- since ACD and DCB help to create the straight line they must equal 180° when combined

- so 180 - 40 = 140

- therefore, ACD is 40° and DCB is 140°

hope this helps :)

Name the set(s) of numbers to which -10 belong

Answers

-10 belongs to the set of negative integers and rational numbers and also belongs to the set of real numbers.

[tex]\boxed{\bf{Help\;Please}}[/tex]
______________________
[tex]\boxed{\bf{Answer\;Requirements-:}}[/tex]
No spam
No absurd answers
[tex]\bf{Only}[/tex]
People who are good at Trigonometry
[tex]\bf{should\;answer}[/tex]

Answers

Answer:

There you go:

[tex]y = 4 \cos(4\pi \: t + \frac{\pi}{4} ) [/tex]

[tex]y = a\cos(w\: t + \alpha ) [/tex]

[tex]w = 4\pi[/tex]

[tex]2\pi \: f = 4\pi[/tex]

[tex]f = 2[/tex]

Answer:

[tex]\displaystyle 2[/tex]

Step-by-step explanation:

[tex]\displaystyle y = Acos(Bx - C) + D[/tex]

When working with a trigonometric equation like this, always remember the information below:

[tex]\displaystyle Vertical\:Shift \hookrightarrow D \\ Horisontal\:[Phase]\:Shift \hookrightarrow \frac{C}{B} \\ Wavelength\:[Period] \hookrightarrow \frac{2}{B}\pi \\ Amplitude \hookrightarrow |A|[/tex]

So, the first procedure is to find the period of this graph, and when calculated, you should arrive at this:

[tex]\displaystyle \boxed{\frac{1}{2}} = \frac{2}{4\pi}\pi[/tex]

You will then plug this into the frequency formula, [tex]\displaystyle T^{-1} = F.[/tex] Look below:

[tex]\displaystyle \frac{1}{2}^{-1} = F \\ \\ \boxed{2 = F}[/tex]

Therefore, the frequency of motion is two hertz.

I am delighted to assist you at any time.

Solve to find x and y in the diagram.

The figure shows two parallel lines and a transversal. The intersection of the first line and the transversal forms four angles, the top right angle is labeled as a right angle, the bottom right angle measures 6 times x plus 5 times y degrees. The intersection of the second line and the transversal forms four angles, the bottom right angle measures 10 times y degrees.

Answers

The values of x and y by the descriptions in the task content are; 7.5 and 9 respectively.

What are the values of x and y?

It follows from the task content that the description in the task content registers the bottom right angle measure of the second intersection as equal to 10y.

Hence, it follows that; 10y = 90 and; y = 9.

From the first intersection; 6x + 5y = 90;

6x + 5(9) = 90

6x + 45 = 90

6x = 45

x = 45/6 = 7.5

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