URGENt please help me all I need is the answer of b

The statements that are necessary to prove the two triangles are congruent by SSS are AD≅ AD, BD ≅ CD, and AB ≅ AC.

What is congruence?

In geometry, two figures or objects are said to be congruent if their shapes and sizes match, or if one is the mirror image of the other.

Here,

To prove that two triangles are congruent using the SSS Congruence criterion, we must establish that all three sides of one triangle are equal to all the corresponding sides of the other.

Thus,

Side AD in ∆ADB is congruent to side AD in ∆ADC.

Side BD in ∆ADB is congruent to side CD in ∆ADC.

Side AB in ∆ADB is congruent to side AC in ∆ADC.

Hence, based on the SSS congruence criterion, it is concluded that both triangles are congruent. i.e  AD≅ AD, BD ≅ CD, AB ≅ AC.

To learn more about the congruence from the given link

https://brainly.com/question/1675117

#SPJ1

Answer:

D

Step-by-step explanation:

To prove that two triangles are congruent using the SSS Congruence criterion, we must establish that all three sides of one triangle are equal to all the corresponding sides of the other.Thus,Side AD in ∆ADB is congruent to side AD in ∆ADC.Side BD in ∆ADB is congruent to side CD in ∆ADC.Side AB in ∆ADB is congruent to side AC in ∆ADC.Therefore, based on the SSS congruence criterion, it is concluded that both triangles are congruent.The statements necessary to prove that they are congruent by SSS is: D

Answer: 02

Step-by-step explanation: w

Answer:

book c has 130 pages

Step-by-step explanation:

let book a = x pages

book b      = 2x

book c      = 2x + 30

according to the question:

x + 2x +2x + 30 = 280

5x + 30 = 280

5x = 280-30

5x = 250

x = 250/5

x = 50

thus book c has 2(50) + 30 = 130 pages

Being a female and participating in sports are independent events for the provided data because P(girl) = P(girl participates in sports)

These are the occurrences that are independent of other occurrences.

Occurrences A and B are independent events when the likelihood of one occurring is unaffected by the occurrence of the other.

Probability of independent events formula:

"P(A∩B) = if A and B are independent occurrences P(A).P(B)

Finding the chance that an event will occur is the focus of this area of mathematics."

P(A) = n(A)/n(S), where n(A) is the number of positive outcomes and n(S) is the total number of possible outcomes for an event A.

For given question,

We have been given a table that shows the results broken down by gender.

            Play sports         Do not play sports       Total

Boy            95                          45                        140

Girl             76                           59                       135

Total          171                            104                     275

Using the definition of probability:

⇒ P(girl)  = Number of girls/ Number of students

⇒ P(girl) = 135/275

⇒ P(girl) = 0.49                    ....................(1)

Now we find the probability of girls that play a sport.

Using the definition of probability:

P(girl plays a sport)

= Number of girls who plays a sport/ number of students who plays a sport

= 76/ 171

= 0.44                                    ......................(2)

From (1) and (2),

P(girl) = P(girl plays a sport)

Thus, being a girl and playing a sport are Independent events.

Learn more about independent events here;

brainly.com/question/13488890

#SPJ1

The original cost of the speaker will be equal to $125.3. The correct option is D.

The percentage is defined as representing any number with respect to 100. It is denoted by the sign %. The percentage stands for "out of 100." Imagine any measurement or object being divided into 100 equal bits.

Given that a waterproof speaker sells for $179, which is marked up by 30% of the selling price.

The cost price of the speaker will be calculated as,

Cost price = 179 x 0.7

Cost price = $125.3

Therefore, the original cost of the speaker will be equal to $125.3. The correct option is D.

To know more about percentages follow

brainly.com/question/24304697

#SPJ1

Answer:

Target

Step-by-step explanation:

$4.40/8 is 0.55 and $7.08/12 is 0.59

a) If only your employer makes the monthly deposits into your retirement account for the future value of $500,000 in 40 years at 7% APR, your employer contributions should be $190.49.

b) If only your employer makes the monthly deposits into your retirement account for the future value of $500,000 in 40 years at 4% APR, your employer contributions should be $423.03.

The future value represents the amount expected to be the balance in the investment account after a period.

The future value can be used to determine the periodic payments required to meet the target balance, using an online finance calculator.

N (# of periods) = 480 months (40 years x 12)

I/Y (Interest per year) = 7%

PV (Present Value) = $0

FV (Future Value) = $500,000

Results:

PMT (Periodic deposits) = $190.49

Sum of all periodic payments = $91,435.07

Total Interest = $408,564.93

N (# of periods) = 480 (40 years x 12)

I/Y (Interest per year) = 4%

PV (Present Value) = $0

FV (Future Value) = $500,000

Results:

PMT (Periodic deposits) = $423.03

Sum of all periodic payments = $203,052.33

Total Interest = $296,947.67

Thus, the periodic deposits to meet the future value will depend on the interest rate.

Learn more about periodic deposits at https://brainly.com/question/13031679

#SPJ1

Answer:

34

Step-by-step explanation:

This is somewhat hard to explain for me. I attached a picture/diagram to help.

They are congruent angles.

Angle N, inside the MNP triangle is 34. Which means the adjacent angle is 56.

The interior angles of a triangle add up to 180.

So to find angle M in triangle LNM, we can do 180 - 90 - 56.

Therefore the m<LMN = 34

Answer:

  1/3log₂(x) +1/3log₂(y) +1/3log₂(z)

Step-by-step explanation:

You want the complete expansion of ...

  [tex]\log_2{\sqrt[3]{x\cdot y\cdot z\vphantom{b}}}[/tex]

The rules of logs and exponents relevant to this expansion are ...

  [tex]\log_b{(xy)}=\log_b{(x)}+\log_b{(y)}\\\\\log_b{(x^a)}=a\cdot\log_b{(x)}\\\\\sqrt[n]{\vphantom{b}a}=a^{\frac{1}{n}}[/tex]

Applying these rules to the given expression, we get ...

  [tex]\log_2{\sqrt[3]{x\cdot y\cdot z\vphantom{b}}}=\log_2{((xyz)^{\frac{1}{3}})}=\dfrac{1}{3}\log_2{(xyz)}\\\\=\boxed{\dfrac{1}{3}\log_2{(x)}+\dfrac{1}{3}\log_2{(y)}+\dfrac{1}{3}\log_2{(z)}}[/tex]

Showing that this need not be true if f is continuous but not uniformly continuous.

Given :

let f be a uniformly continuous function on a set e. show that if {xn} is a cauchy sequence in e then {f(xn)} is a cauchy sequence in f(e).

( 1 )

If f is uniformly continuous on E, then given ε > 0 there is δ > 0 such that if x, y are in E and |x−y| < δ,

then |f(x) − f(y)| < ε. Let (xn) be a Cauchy sequence in E. Then given δ > 0 there is N such that if p, q > N,

then |xp − xq| < δ, and thus |f(xp) − f(xq)| < ε, implying that (f(xn)) is a Cauchy sequence.

( 2 )

Let E = {1, 1/2, 1/3, · ·  } and f(1/n) = 1 is n is odd, f(1/n) = −1 if

n is even. Then f is continuous but not uniformly continuous. The sequence (xn) = (1/n) in E is Cauchy but the

sequence (f(xn)) = (1, −1, 1, −1, · · ·) is not Cauchy.

Learn more about the sequence here:

https://brainly.com/question/21961097

#SPJ4

Answer:

4 < x < 12

Step-by-step explanation:

x - 8 ≥ 0

x ≥ 8

If x ≥ 8

9(x-8) < 36

9x - 72 < 36

9x < 36 + 72

9x < 108

9/9 x < 108/9

x < 12

8 ≤ x < 12

if x < 8

9(-x+8) < 36

-9x + 72 < 36

-9x < 36 - 72

-9x < -36

-9/-9 x > -36/-9

x > 4

4 < x < 8

4<x<12

Answer:

1120

Step-by-step explanation:

Given the information below:

The Relative Frequency of selling a pan style pizza =

Therefore, if Valentino's Pizzeria were to sell 4000 pizzas, the expected number of Pan style pizza sold will be:

Number of Pan Style Pizza Sold = Relative Frequency of pan Style Pizza Purchase X Total Number of Sales

They should expect to sell 1120 pan Style pizzas.

f(x) = x² + 2x + 2

Solution:

Given vertex (1,1)

a = 1

Formula of quadratic equation  is :

y = a(x + b)² + c

where, a =1, x=x, b = x1, c = y1

Substituting  the values in the equation, we get

y = x² + 2x + 2

To learn more about quadratic equations :

https://brainly.com/question/1526946

#SPJ4

A quadratic function to model the graph to the right is f(x) = x² + 2x + 2

What is a quadratic equation?

A quadratic equation is an algebraic equation of the second degree in x. The quadratic equation in its standard form is ax² + bx + c = 0, where a and b are the coefficients, x is the variable, and c is the constant term.

Solution:

Given vertex (1,1)

a = 1

Formula of quadratic equation  is :

y = a(x + b)² + c

where, a =1, x=x, b = x1, c = y1

Substituting  the values in the equation, we get

y = x² + 2x + 2

To learn more about quadratic equations :

brainly.com/question/1526946

#SPJ4

If the three side lengths are all different then you will only get one triangle. However, if two or more of the side lengths are the same then you can get more than one triangle.

A triangle is a polygon with three vertices and three sides. The angles of the triangle are formed by the connection of the three sides end to end at a point. The triangle's three angles add up to 180 degrees in total

Three diagonals must meet at three different locations to form a triangle. There are five possible arrangements of three diagonals. We categorize them according on how many different diagonal endpoints there are. The quantity of triangles with 3, 4, and 5 endpoints will be counted directly.

To know more about triangle visit:

https://brainly.com/question/2773823

#SPJ1

Answer:

4 m^3 - 38 m^2 + 57 m - 72 = (4 m^2 - 6 m + 9)(m - 8) + 0

Step-by-step explanation:

Compute (4 m^3 - 38 m^2 + 57 m - 72) ÷ (m - 8) using polynomial long division:

m - 8 | 4 m^3 | - | 38 m^2 | + | 57 m | - | 72

To eliminate the leading term of the numerator, 4 m^3, multiply m - 8 by 4 m^2 to get 4 m^3 - 32 m^2. Write 4 m^2 on top of the division bracket and subtract 4 m^3 - 32 m^2 from 4 m^3 - 38 m^2 + 57 m - 72 to get -6 m^2 + 57 m - 72:

| | | 4 m^2 | | | |

m - 8 | 4 m^3 | - | 38 m^2 | + | 57 m | - | 72

| -(4 m^3 | - | 32 m^2) | | | |

| | | -6 m^2 | + | 57 m | - | 72

To eliminate the leading term of the remainder of the previous step, -6 m^2, multiply m - 8 by -6 m to get -6 m^2 + 48 m. Write -6 m on top of the division bracket and subtract -6 m^2 + 48 m from -6 m^2 + 57 m - 72 to get 9 m - 72:

| | | 4 m^2 | - | 6 m | |

m - 8 | 4 m^3 | - | 38 m^2 | + | 57 m | - | 72

| -(4 m^3 | - | 32 m^2) | | | |

| | | -6 m^2 | + | 57 m | - | 72

| | | -(-6 m^2 | + | 48 m) | |

| | | | | 9 m | - | 72

To eliminate the leading term of the remainder of the previous step, 9 m, multiply m - 8 by 9 to get 9 m - 72. Write 9 on top of the division bracket and subtract 9 m - 72 from 9 m - 72 to get 0:

| | | 4 m^2 | - | 6 m | + | 9

m - 8 | 4 m^3 | - | 38 m^2 | + | 57 m | - | 72

| -(4 m^3 | - | 32 m^2) | | | |

| | | -6 m^2 | + | 57 m | - | 72

| | | -(-6 m^2 | + | 48 m) | |

| | | | | 9 m | - | 72

| | | | | -(9 m | - | 72)

| | | | | | | 0

The quotient of (4 m^3 - 38 m^2 + 57 m - 72)/(m - 8) is the sum of the terms on top of the division bracket. Since the final subtraction step resulted in zero, m - 8 exactly divides 4 m^3 - 38 m^2 + 57 m - 72, and there is no remainder.

| | | 4 m^2 | - | 6 m | + | 9 | (quotient)

m - 8 | 4 m^3 | - | 38 m^2 | + | 57 m | - | 72 |

| -(4 m^3 | - | 32 m^2) | | | | |

| | | -6 m^2 | + | 57 m | - | 72 |

| | | -(-6 m^2 | + | 48 m) | | |

| | | | | 9 m | - | 72 |

| | | | | -(9 m | - | 72) |

| | | | | | | 0 | (remainder) invisible comma

(4 m^3 - 38 m^2 + 57 m - 72)/(m - 8) = (4 m^2 - 6 m + 9) + 0

Write the result in quotient and remainder form:

Answer: 4 m^3 - 38 m^2 + 57 m - 72 = (4 m^2 - 6 m + 9)(m - 8) + 0

The required answer in the given problem, given weight of 5 kilograms and  convert it to 11.02 pounds. By multiplying the given weight by the conversion factor of 2.204 pounds/kilogram,  obtain the weight in pounds.

Conversion from kilograms to pounds:

To convert a weight value from kilograms to pounds, we use the conversion factor of 1 kilogram equals 2.204 pounds. This means that for every 1 kilogram, there are 2.204 pounds. To convert a weight from kilograms to pounds, we multiply the given value in kilograms by the conversion factor.

To convert 110 kilograms to pounds, we can use the conversion factor that states 1 kilogram is equal to 2.204 pounds. Here's the step-by-step process:

Step 1: Write down the given weight in kilograms, which is 110 kilograms.

Step 2: Multiply the given weight by the conversion factor:

110 kilograms x 2.204 pounds/kilogram

Step 3: Perform the multiplication:

110 x 2.204 = 242.44 pounds

Therefore, 110 kilograms is equal to 242.44 pounds.

In the given problem, given weight of 5 kilograms and  convert it to 11.02 pounds. By multiplying the given weight by the conversion factor of 2.204 pounds/kilogram,  obtain the weight in pounds.

Learn more about unit conversions and the relationship between kilograms and pounds here:

https://brainly.com/question/15537587

#SPJ6

The events P(A) = 0.22 P(B) = 0.45, P(A and B) = 0.099 and rolling a pair of dice at the same time are independent events. Others are dependent events.

Independent events are events for which the occurrence of this event does not depend on any other events.

Dependent events are those events for which it's occurrence depends on other events.

Two events A and B are independent, if

P(A | B) = P(A)

P(A and B) = P(A) × P(B)

P(A) = 0.65, P(B) = 0.25 and P(A and B) = 0.40

P(A) × P(B) = 0.65 × 0.25 = 0.1625 ≠ P(A and B)

∴ A and B are dependent events.

P(A) = 0.22 P(B) = 0.45 and P(A and B) = 0.099

P(A) × P(B) = 0.22 × 0.45 = 0.099 = P(A and B)

∴ A and B are independent events.

P(A) = 0.42 P(B) = 0.62 and P(A| B) = 0.2604

P(A| B) = 0.2604 ≠ P(A)

∴ A and B are dependent events.

If you roll a pair of dice at the same time, probability for any number to occur on dice 1 does not affect the probability of any number to occur on dice 2.

∴ A and B are independent events.

If you choose two marbles from a bag, when the first marble is chosen, then the second marble you choose will not be the first marble in any case. So second event depends on the first event.

∴ A and B are dependent events.

Hence, as P(A and B) = P(A) × P(B) satisfies for the events P(A) = 0.22 P(B) = 0.45, P(A and B) = 0.099, is is independent events. Also rolling a pair of dice at the same time is also independent events. The rest of the events are dependent events as it does not satisfies the condition for independent events.

To learn more on Independent Events, click:

https://brainly.com/question/13488890

#SPJ1

83.01dB is approximate combined sound pressure level.

What is sound pressure level?

The result of the pressure changes in the air caused by sound waves is sound pressure, often known as sound pressure level. The hearing threshold is the lowest sound pressure that a human can hear, and the pain threshold is the maximum sound pressure that a person can tolerate.

The difference between sound pressure at the pain threshold and the hearing threshold is a million times higher.

We have sound pressure level denoted as (Lp) of each machine

i.e 80 dB,(given).

Therefore, we can calulate sound pressure level from both machines combined by given formula,

SPL = 10 * Log(10^(SPL(1) /10)  + 10^(SPL(2) /10) +10^(SPL(3) /10) + ............)

   where,

      SPL= sound pressure level(dB)

 => SPL = 10 * Log(10^(80 /10) + 10^(80 /10))

 => SPL = 10 * Log(10^8 + 10^8)

 => SPL = 10 * 8.301

 => SPL = 83.01dB

Hence, 83.01dB is approximate combined sound pressure level.

Learn more about sound pressure level link below

https://brainly.com/question/13155295

#SPJ1

if the markup is 11%, well, we simply add that to the cost of the item, in this case 18.

[tex]\begin{array}{|c|ll} \cline{1-1} \textit{\textit{\LARGE a}\% of \textit{\LARGE b}}\\ \cline{1-1} \\ \left( \cfrac{\textit{\LARGE a}}{100} \right)\cdot \textit{\LARGE b} \\\\ \cline{1-1} \end{array}~\hspace{5em}\stackrel{\textit{11\% of 18}}{\left( \cfrac{11}{100} \right)18}\implies 1.98~\hfill \underset{selling~price}{\stackrel{18 ~~ + ~~1.98}{\text{\LARGE 19.98}}}[/tex]

The concurrent parts in the given ABDE are Side AB ≅ Side ED and Side AE ≅ Side BD.

Two triangles are said to be congruent if all three corresponding sides and all three corresponding angles have the same size. These triangles may be moved, flipped, twisted, and turned to get a similar effect. When relocated, they are parallel to one another. The concurrence sign is '≅'.

Here we have,

ABDE is an isosceles trapezoid.  

Draw 2 diagonals in a given trapezoid

Then the 2 diagonal  will divide the trapezoid into 4 triangles

Here ΔAOB, ΔBOD, ΔEOD, and AOE

From the formed triangles

ΔAOB and ΔEOD will be two concurrent triangles

Then Side AB ≅ Side ED  

ΔBOD and AOE will be two concurrent triangles

Side AE ≅ Side BD    

Therefore,

The concurrent parts in the given ABDE are Side AB ≅ Side ED and Side AE ≅ Side BD.    

Learn more about Trapeziam at

brainly.com/question/29539075

#SPJ4

Answer:

c

...................

Answer:

the answer is the option C

Both the expressions are equivalent to each other.

What do you mean by algebraic expression?

The concept of algebraic expressions is the use of letters or alphabets to represent numbers without providing their precise values. We learned how to express an unknown value using letters like x, y, and z in the fundamentals of algebra. Here, we refer to these letters as variables. Variables and constants can both be used in an algebraic expression. A coefficient is any value that is added before a variable and then multiplied by it.

Given expression:

LHS

0.4(k+3)

= 0.4k + 0.4 × 3

= 0.4k + 1.2

RHS

0.4 k+1.2

LHS = RHS

Therefore, both the expressions are equivalent to each other.

To learn more about the algebraic expression from the given link.

https://brainly.com/question/4344214

#SPJ4

Answer:

11.6 years

Step-by-step explanation:

1800 = 900 x (1 + 0.06/12)^ 12t

1800 = 900 x (1 + 0.005)^12t

1800 = 900 x (1.005)^12t

1800 = 900 x 1.061678^t

1800/900 = (900 x 1.061678^t)/ 900

2 = 1.061678^t

log(1.061678) 2 = t

t = 11.5813

t = 11.6

The doubling period of a bacterial population is 15 minutes. the initial population at time t=0 is 351.56. the size of the bacterial population after 3 hours is:359,997.44.

y = total amount of bacteria

a = initial bacterial at time 0

b = growth factor

t=120 minutes =15 minutes 8 times

So,

t=8

90000 =  a (2)^8

90000 = a (256)

90000/256 = a

351.56 = a (initial population)

Equation:

y = 351.56 (2)t

After 3 hours (15 minutes 10 times), or at t = 10

y = 351.56 (2)^10

y= 359,997.44

Therefore the initial population at time t=0 is 351.56. the size of the bacterial population after 3 hours is:359,997.44.

Learn more about initial population here:https://brainly.com/question/29051789

#SPJ1

Percent is from the Latin adverbial phrase per centum meaning “by the hundred.”

Using concepts of percentage,

3 is 16.63% of 22.

22 is 13.41% of 164.

0.88 is 4% of 22.

8 is 22% of 36.36.

1.1 is 5% of 22.

A percentage is a number or ratio expressed as a fraction of 100.

Let 3 be x% of 22.

=x/100*22=3

=x=3*100/22=13.63

3 is 13.63% of 22.

Let 22 be y % of 164.

=y/100*164=22

=y=22*100/164=13.41

13.41% of 164 is 22.

4% of 22 = 0.88

=4/100*22=0.88

Let 8 is 22% of z.

=22/100*z=8

=8*100/22=36.36

5% of 22 = 1.1

To learn more about percentage here:

https://brainly.com/question/24159063

#SPJ1

There are total 42,072,307,200 different passwords are possible .

What are combinations ?

A combination is a mathematical technique that determines the number of possible arrangements in a collection of items where the order of the selection does not matter. In combinations, you can select the items in any order.

Combinations can be confused with permutations. However, in permutations, the order of the selected items is essential. For example, the arrangements ab and ba are equal in combinations (considered as one arrangement), while in permutations, the arrangements are different.

Given: A password is required to log into a system that only recognizes numbers and letters of the alphabet

Since , there are total 26 letters and 10 numbers are possible that can be used to create a password . Hence , there are 36 character in total to be used.

Also , repetition of character is not allowed. Therefore , the chance of selecting every character decreases by 1 in comparison to its preceding character .

Chance of selecting first character = 36

Chance of selecting second character = 35

Similarly for seventh = 30

Thus , different passwords that are possible  using 7 numbers or letters, without reusing any of them = 36*35*34*33*32*31*30 = 42,072,307,200 .

Learn more about Combinations at :

https://brainly.com/question/11732255

#SPJ1

Yes, it makes sense to discuss the similarity between these shapes.

Two shapes are considered similar if they have the same shape, but possibly different sizes. This means that the angles of the shapes are the same and the sides of the shapes are in the same ratio.

Two rhombi are similar if they have the same angle measures and the lengths of their sides are in the same ratio.

Two squares are similar if they have the same angle measures and the lengths of their sides are in the same ratio.

Two rectangles are similar if they have the same angle measures and the lengths of their sides are in the same ratio.

Two parallelograms are similar if they have the same angle measures and the lengths of their sides are in the same ratio.

Two congruent polygons are similar by definition, since congruent shapes are identical in size and shape.

It is important to note that similarity is different from congruence. Congruent shapes are identical in size and shape, whereas similar shapes have the same shape but possibly different sizes.

Learn more about conguent polygons on:

brainly.com/question/1675117

#SPJ1

Answer: The correct answer is (d) 89,200 games.

To find the number of games that must be sold, we need to set up an equation to represent the total revenue from the game sales and solve for the number of games sold.

The total revenue from the game sales is equal to the number of games sold multiplied by the price per game, minus the cost of research and development.

Let X be the number of games sold

Total revenue = X * $2 - $160,000

We also know that the total cost of producing the games is equal to the number of games produced multiplied by the cost per game.

Total cost = X * $0.20

We can set the total revenue equal to the total cost and solve for X:

X * $2 - $160,000 = X * $0.20

X = 89,195

Since we gave away the first 275 games for free, we need to add 275 to the number of games sold to find the total number of games that must be sold.

Total number of games sold = X + 275 = 89,195 + 275 = 89,470

Therefore, the correct answer is (d) 89,200 games.