if D is the midpoint of segment AC, C is the midpoint of segment AB and AD=3cm what is the length of segment BC

9514 1404 393

Answer:

 10 square units

Step-by-step explanation:

The given equation is in "intercept form." This lets you see immediately the x-intercept is 4, and the y-intercept is 5. This makes the area be that of a right triangle with base 4 and height 5:

  A = 1/2bh = 1/2(4)(5) = 10 . . . . square units

The perimeter of the elliptical table is given by the path traced with the

string attached to the foci of the ellipse.

Reasons:

The shape of the table top = An ellipse

The dimensions of the plywood = 4 foot by 6 foot

Required:

The distance between the thumbtacks of the largest possible ellipse

Solution:

The major axis of the largest possible axis = 6 foot

The minor axis of the ellipse = 4 foot

[tex]The \ semi \ major \ axis, \ a = \dfrac{6}{2} = 3[/tex]

[tex]The \ semi \ minor \ axis, \ b = \dfrac{4}{2} = 2[/tex]

Which gives;

The focus, c² = a² - b²

Therefore;

c² = 3² - 2² = 5

c = √(5)

The distance between the two thumbtacks = c - (-c) = c + c = 2·c

Therefore;

The distance between the two thumbtacks = 2·√(5)

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Answer:

Answer is given in the attachment

hope it's helpful!!

(94.50 - 18.50) ÷ f = a

f=family members

a=answer

I don't know how many family members there are, but you would just replace f with the amount.

Answer:

m∠O = 80°

Step-by-step explanation:

m∠O = 4x - 20

m∠Q = 3x + 5

m∠O and m∠Q are congruent

4x - 20 = 3x + 5

Solve for x = 25

Plug back in

m∠O = 4(25) - 20

m∠O = 100 - 20

m∠O = 80°

Answer:

What even is this question?

Answer: Percentage decrease = 20% × 7,720

New value = 7,720 - Percentage decreaseNew value =

7,720 - Percentage decrease =

7,720 - (20% × 7,720) =

7,720 - 20% × 7,720 =

(1 - 20%) × 7,720 =

(100% - 20%) × 7,720 =

80% × 7,720 =

80 ÷ 100 × 7,720 =

80 × 7,720 ÷ 100 =

617,600 ÷ 100 =

6,176

New value - 7,720 =

6,176 - 7,720 =

- 1,544

Step-by-step explanation:

Answer:

The result can be shown in multiple forms.

Exact Form: 4√3 = √48

Step-by-step explanation:

Answer: The answer to this math question about completing the equation in order to calculate the cost of the portable speaker, including the sales tax is $94.34.

Step-by-step explanation: I don't have any step-by-step explanation, I'm sorry about that, but anyway, I hope that my given short answer is very helpful to your own math question about completing the equation in order to calculate the cost of the portable speaker, including the sales tax, please mark me as Brainliest, take care, always be safe, and have a great rest of the day! :D

Sincerely,

Jason Ta,

The Ambitious of The Brainly And The Role of The TDSB And WHCI Student of The High School.

We have a sequence that meets the given criteria, and with that information, we want to get the sum of all the terms in the sequence.

We will see that the sum tends to infinity.

So we have 5 terms;

A, B, C, D, E.

We know that the sum of each term and its neighboring terms is 15 or 25.

then:

Now, we want to find the sum of all the terms in the sequence (not only the 5 given).

Then let's assume we write the sum of infinite terms as:

[tex]a_1 + a_2 + a_3 + a_4 + a_5 + a_6 + ...[/tex]

Now we group that sum in pairs of 3 consecutive terms, so we get:

[tex](a_1 + a_2 + a_3) + (a_4 + a_5 + a_6) + ...[/tex]

So we will have a sum of infinite of these, and each one of these is equal to 15 or 25 (both positive numbers). So when we sum that infinite times (even if we always have the smaller number, 15) the sum will tend to be infinite.

Then we have:

[tex](a_1 + a_2 + a_3) + (a_4 + a_5 + a_6) + ... \to \infty[/tex]

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Answer:

35

Step-by-step explanation:

absoulute value of a=7

so 2x7=14

ab=-7x3= -21

14- (-21)= 35

Answer:

It's the one under the one you have selected.

Step-by-step explanation:

7:2

14:4

28:8

56:16

Divide the first number by 7 then multiply it by 2.

Example: 56/7=8, 8*2=16 so it's correct.

Answer:

could be d

Step-by-step explanation:

Answer:

Part A: Total amount of juice left = 0.25 + 0.30 + 0.75 - 0.20

Answer:

6 employees bring pencils

8 employees brings paper

6+8=14

Company:24 employees- 14 employees who brong paper and pencils.=10 so 10 employees brings notebooks.

Step-by-step explanation:

Answer:

6 employees bring pencils

8 employees bring paper

10 employees bring notebooks

Step-by-step explanation:

1/4= 6

1/3= 8

the rest = 10

Answer:

2

Step-by-step explanation:

when the value is below 2

a situation in which no identifiable relationship exists between the values of the error term.

The value of Durbin–Watsons statistic indicates no autocorrelation is present is 2.

The output of a regression model is tested for autocorrelation using the Durbin-Watson statistic. Zero autocorrelation is indicated by a value of 2.0 in the DW statistic, which has a range of zero to four. Positive autocorrelation is indicated by values below 2.0, and negative autocorrelation is shown by values over 2.0.

As, The range of the Durbin-Watson statistic is 0–4. There is no first-order autocorrelation when the number is 2 or close to 2.

The range of 1.50 to 2.50 is suitable.

A number between 0 and 4 will always be assigned to the Durbin-Watson statistic.

A value of 2.0 means that no autocorrelation in the sample was found. Positive autocorrelation is shown by values between 0 and less than 2 whereas negative autocorrelation is indicated by values between 2 and 4.

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Answer:

200

Step-by-step explanation:

I think sorry if I am wrong

Answer:

V = 432pi cm^3

Step-by-step explanation:

Pi x r^2 x h

Pi x 6^2 x 12 cm = 432 pi cm^3

Answer:

The percentage of decrease is approximately 0.14%.

Step-by-step explanation:

35 - 5 = 30

What percentage is 5 of 35 (x/100 = is/of)

x/100 = 5/35 (cross multiply)

(5*100)/35 = 14.29%

it's C  

hoped this helped you with your problems

Answer:

19

Step-by-step explanation:

it is 19

yes

wait no its 100000000000

I big brain UwU

Answer:

Step-by-step explanation:its 21

Answer:

Henry will get $15.77 back.

Step-by-step explanation:

20 - 4.23 = 15.77

Answer:

A

Step-by-step explanation:

The Explication 0 (7+4i)+(7-4i) = 14

The correct equation which demonstrates the additive identity property is,

⇒ (7 + 4i) + 0 = 7 + 4i

The process of combining two or more numbers is called the Addition. The 4 main properties of addition are commutative, associative, distributive, and additive identity.

Now, If we add a real number to zero or add zero to a real number, then we get the same real number back.

Hence, The number zero is known as the identity element, or the additive identity.

For example: a + 0 = a

Hence, we can see that;

⇒ (7 + 4i) + 0 = 7 + 4i

Since, 0 is the additive identity here.

Thus, The correct equation which demonstrates the additive identity property is,

⇒ (7 + 4i) + 0 = 7 + 4i

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Answer:

D. As the Radius of the can get larger  and larger, the label gets further and further from zero (0)

Hope this helps, have a nice day/night! :D

Answer:

2/3

Step-by-step explanation:

1. The easiest way to find the slope of the line is by converting this equation into slope-intercept form (y = mx + b).

2. (Solving)

Step 1: Simplify both sides of the equation.

Step 2: Add 3 to both sides.

Step 3: Divide both sides by 3.

3. Since 2/3 is in place of m, the slope, the slope of the line is 2/3.

Answer:

the answer is 3

Step-by-step explanation:

take 18 and divide it by 6 and you get 3

Answer:

1. y = 2

2. y = -3 + 5z, zeR

3. x = ^-10/3 + 3/2^y ^-2/3^z, yeR, zeR

Step-by-step explanation:

If you would like me to explain, comment on this answer!

Answer:

69.9 (nice)

Step-by-step explanation:

To solve this, use the order of operations: PEMDAS (Parenthasis, exponents, Multiplication/Division, Addition/subtraction) In order.

1. Solve in the parenthasis, (2+3³).  3³ = 27, so 2+27 is 29. Plug in 29 to the equation: 5³-29×1.9

2. Next is exponents. 5³ has an exponent, which equals 125. Now you plug that into the equation to be 125-29×1.9

3. Now comes multiplication/division. In this case, it's multiplication. -29×1.9 . This equals -55.1, and you once again plug  this into the equation to simplify which gives you 125 - 55.1

4. Last in the order of PEMDAS is addition/subtraction. The final simplification of the equation is 125 - 55.1 which is subtraction and this equals 69.9 (nice)

So in conclusion, your answer is 69.9 (nice)

Answer:

0.41, 2 is lower than 5 so we round down

Answer:

0.41300

Step-by-step explanation:

0.41275.

0.4: tenths place. 0.01: hundredths place. ...

Now look at the next decimal place, which is 0.0007: the ten thousandths place . This number determines whether the thousandths place will be rounded up or down. ...

Therefore, 0.41275 rounded to the nearest thousandth is:

Answer:

[tex]2^1^5[/tex]

Step-by-step explanation:

Power rule: you multiply the exponent.

Think of it this way: [tex]X ^3 = X \times X \times X[/tex]. In this case, [tex]X = 2^5[/tex]

At this point our original number is [tex]2^5 \times 2^5 \times 2^5 = 2\times2\times2... \times 2[/tex]  with 15 2s

Which is, by definition, [tex]2^1^5[/tex]

Answer:

1.5

Step-by-step explanation:

to find one hour you divide both answers by 1.5 giving you one hour and 1.5

1.5 yards did you mow in 1 hour when, You mowed 2.25 yards in 1.5 hours.

Division is the process of splitting a number or an amount into equal parts.

Division is one of the four basic operations of arithmetic, the ways that numbers are combined to make new numbers. The other operations are addition, subtraction, and multiplication.

here, we have,

You mowed 2.25 yards in 1.5 hours.

in 1 hours I mowed = 2.25/1.5

                               =1.5

Hence, 1.5 yards did you mow in 1 hour.

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Answer:

Yes.

Step-by-step explanation:

Because

6*4 =24

and 4*0 = 0,

24+0=24

have a nice day!!!