Which of the following statements is true?

A.A radius is always a chord.
B.A tangent is always a secant.
C.A diameter is always a chord.
D.A chord is always a diameter.
Please help

Answers

Answer 1
A isnt correct because radius goes from center of circle to any point on circle. Chord on the other hand connects 2 points on circle...

B is also false. Secant goes through circle while tangent only touches it in one point. 

C is correct. Chord connects as said before 2 points on circle and in some cases it can connect 2 points in such way that it goes through center which is diameter.

D is not correct because chord doesnt have to pass trought center of circle in order to connect any 2 points on circle.

Related Questions

Is 35 prime or a composite

Answers

 35 is  a composite number. 

Answer: Composite

Step-by-step explanation: To see if 35 is a prime number or a composite number, let's first start by finding the factors of 35.

To find the factors of 35, begin by dividing 35 by 1 which gives us 35. This means that 1 and 35 are factors.

Next, since 35 is not divisible by 2, 3, or 4, we divided 35 by 5 which gives us 7. This means that 5 and 7 are factors.

Next, since 35 is not divisible by 6, we divide 35 by 7 which gives us 5. Notice that 7 and 5 are repeat factors and once we hit repeat factors, this means that all other factors we try will repeat.

Therefore, the factors of 35 are 1, 5, 7, and 35.

Since 35 has more than two factors, it's called a composite number.

3/4 1 1/2 simplest form

Answers

If Multiplication : 1 1/8

If Addition : 2 1/4

 If Subtraction : -3/4

 If Division : 1/2

Those are all the answers to the problem in which property you are doing.

In circle P, diameter QS measures 20 centimeters.



What is the approximate length of arc QR? Round to the nearest tenth of a centimeter.

9.9 centimeters
19.9 centimeters
21.5 centimeters
43.0 centimeters

Answers

It's 19.9 Centimeters

Answer:

the answer is 19.9 cm

List the multiples of 3 that are also multiples of 5.

Answers

15,30,45,60,75,90 and most must mutiple of 15 i think

Write a conditional statement from the sentence. "parallel lines do not intersect."

Answers

The conditional statement for the sentence "Parallel lines do not intersect" is:
If two lines are parallel, then they do not intersect.
The condition is that two lines are not parallel so that they could intersect - but since that condition is not met, they do not intersect. 

Quadrilateral ABCD has 2 pairs of parallel sides, and perpendicular diagonals. What is the MOST SPECIFIC name for the quadrilateral?
A)
parallelogram
B)
rectangle
C)
rhombus
D)
square ...?

Answers

Answer:

C - Rhombus

Step-by-step explanation:

A rhombus ALWAYS has perpendicular diagonals. A rhombus is just a parallelogram with four equal sides, so two of them have to be parallel, at least.

Answer:

it's a parallelogram


What is the solution set of 2x2 7x 5=0??

Answers

9-7x= 0
x=0
\/////////////

What to the second power equals 9/16?

Answers

3/4

(3/4)^2 = (3^2)/(4^2) = 9/16
Final answer:

The number that, when squared, equals 9/16 is 3/4 as the square root of a fraction is the square root of the numerator divided by the square root of the denominator.

Explanation:

The question is asking what number raised to the second power (or squared) equals 9/16. In mathematical terms, it's asking for a number n whereby n² = 9/16. Since squaring a number means multiplying it by itself, we can say that n = √(9/16).

The square root of 9/16 can be found by taking the square root of 9 and the square root of 16 separately. This is possible because the square root of a fraction is equal to the square root of the numerator divided by the square root of the denominator (√a/b = √a / √b).

So, the square root of 9 is 3 and the square root of 16 is 4. Therefore, √(9/16) = 3/4. Hence, the number that when squared gives 9/16 is 3/4.

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The equation h = -16t^2 + 32t + 9 gives the height of a ball, h, in feet above the ground, at t seconds after the ball is thrown upward. How many seconds after the ball is thrown will it reach its maximum height? What is its maximum height?

Answers

It would take 1 second to reach its maximum height, which would be 25 feet.

h=−16(1^2)+(32)(1)+9 If you substituted t as 1, you would find that after simplification, h would be 25.

You would find out that as you increased t, h would get smaller.

List the following numbers in order from least to greatest 2.8,2.8x10^2,2.8x10^-3,2.8x10^4,2.8x10^-5

Answers

This is the list of the numbers from least to greatest:
2.8x10^-5
2.8x10^-3
2.8
2.8x10^2
2.8x10^4

Answer:

[tex]2.8\times 10^{-5},2.8\times 10^{-3},2.8, 2.8\times 10^2,2.8\times 10^4,[/tex]

Step-by-step explanation:

We have been given several numbers and we are asked to order them in least to greatest order.

Given numbers: [tex]2.8, 2.8\times 10^2,2.8\times 10^{-3},2.8\times 10^4,2.8\times 10^{-5}[/tex]

We know that the number with negative power will be smaller than the number with positive powers.

We can see from our given numbers that [tex]2.8\times 10^{-5}[/tex] has a negative power. We can rewrite this as [tex]2.8\times \frac{1}{10^5}[/tex]. This will be the smallest number.

Upon arranging our given number from least to greatest we will get,

[tex]2.8\times 10^{-5},2.8\times 10^{-3},2.8, 2.8\times 10^2,2.8\times 10^4,[/tex]

Order these numbers from least to greatest. 8 7/11 , 8.17 , 8.174 , 173/20

Answers

8.17,8.174,8 7/11, 173/20

The numbers are ordered from least to greatest by first converting them all to decimals, resulting in the order: 8.17, 8.174, 8 7/11 (8.6363), and 173/20 (8.65).

First, we need to convert all the numbers to similar formats, either as decimals or fractions, to compare them accurately. Here's what we have:

8 7/11 = 8 + 7/11 = 8.6363 (rounded to four decimal places)8.17 (already a decimal)8.174 (already a decimal)173/20 = 8.65 (as a decimal)

Now, we can easily order these from least to greatest:

8.178.1748 7/11 (8.6363)173/20 (8.65)

What are the earnings for:
1. 5 days at $69.00 a day = $
2. 3.5 days at $27.75 a day = $

Answers

1. 5*69$ = 345$ , the earning is 345 dollars.
2. 3.5*27.75 = 97.125$, the earning is 97.125 dollars.

Answer:

1. 345 dollars

2. 97.125 dollars

Step-by-step explanation:

1) What are the earnings for 5 days at 69 dollars a day?

If a person makes 69 dollars a day and we want to know the earning of 5 days, we would have to multiply the earnings per day by the number of days.

69 x 5 = 345.

2) What are the earnings for 3.5 days at 27.75 dollars a day?

If a person makes 27.75 dollars a day and we want to know the earning of 3.5 days, we would have to multiply the earnings per day by the number of days.

27.75 x 3.5 = 97.125

The diameter of a circular garden is 16 feet. What is the approximate area of the garden?

A.
50 square feet

B.
100 square feet

C.
201 square feet

D.
803 square feet

Answers

[tex]A = \pi r^2[/tex]

radius = half the diameter  ------> 16/2 = 8

[tex]A = \pi (8^2) = 64 \pi [/tex]

pi = 3.14

64*3.14 = 201
Well I believe that the equation for the area of a circle is [tex] \pi r^{2} [/tex]. Pi*Radius^2 
The radius of the garden is 8ft because it's half of the diameter. 8^2 is 64. Multiply that by 3.14 and you will get approximately 201 square feet so the answer is:

C) 201 square feet

a piggy bank contains only nickels and quarters. The total value in the back is $3.80. Write an equation in standered form that models the possible combinations of nickels and quarters in the piggy bank

Answers

Ax + By = C....standard form

0.05n + 0.25q = 3.80....I just used the variables (n) for nickels and (q) for quarters....but u could use x and y if u want to. But if u do this, be sure and label ur variables

The cost, c(x), for a taxi ride is given by c(x) = 2x + 4.00, where x is the number of minutes. What does the slope mean for this situation
A. The taxi ride costs a total of $4.00

B. The taxi ride costs $2.00 per trip.

C. The rate of change of the cost of the taxi ride is $2.00 per minute.

D. The rate of change of the cost of the taxi ride is $4.00 per minute.

Answers

As m is a constant that is applied to x, it has to have something to do with minutes, eliminating A and B. As the constant is 2, it has to have something to with 2, eliminating D, meaning your answer is C. This is because a slope is the rate of change of y in relation to x, so it would be rate of change of y is a (a being your constant, in this case 2) per x. With your case, y is cost and x is minutes, leading to answer choice C.

The interpretation is (c) the rate of change of the cost of the taxi ride is $2.00 per minute.

How to interpret the slope?

The function is given as:

c(x) = 2x + 4.00

A linear equation is represented as:

c(x) = Slope * x + y-intercept

By comparison, we have:

Slope = 2

This means that the slope of c(x) = 2x + 4.00 is 2

Hence, the interpretation is (c) the rate of change of the cost of the taxi ride is $2.00 per minute.

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What is the volume of a cone with a radius of 18 cm and a height of 10 cm? Use 3.14 for pi. Round your answer to the nearest tenth

Answers

The correct answer is 3391.2cm^3

a. Show that the system of rational expressions is closed under addition, or give an example showing the contrary.

Answers

A "rational expression" is a fraction in which the numerator and the denominator are both polynomials. The sum of two such expressions will always produce another such expression, viz., 
p(x)/q(x) + r(x)/s(x) = [p(x)s(x) + q(x)r(x)] / [q(x)*s(x)]. 
The numerator and denominator of the sum will both be polynomials when fully expanded

Explain why 17:3 and 68:12 are equivalent ratios

Answers

17 times 4 is 68 and 3 times 4 is 12. 17:3 and 68:12 are equivalent because you can times and devide them into each other

The name of the compound kf is.....
a. sodium chloride
b. potassium fluoride

Answers

B. Potassium Fluoride

A social service agency finds that, on the average, 2.86 of every 100 families need help from the agency. About how many families can they expect to help in a town of 976 families?

Answers

They can expect to help around 28 Families. 

what is 6.02 + 1.3 - _________ = 4.39

Answers

x= 2.93
Or the blank is 2.93

Final answer:

To find the missing number in the equation 6.02 + 1.3 - __ = 4.39, you need to first add 6.02 and 1.3, and then subtract the result from 4.39 to obtain the missing number, which is -2.93.

Explanation:

What you need to do in this question is solve for the missing number to make the equation true: 6.02 + 1.3 - x = 4.39.

First, add 6.02 and 1.3: 6.02 + 1.3 = 7.32.

Next, subtract 7.32 from 4.39 to find the missing number: 4.39 - 7.32 = -2.93. Therefore, the missing number is -2.93.

Find the midpoint of each side of the trapezoid. Connect the midpoints. What is the most precise classification of the quadrilateral formed by connecting the midpoints of the sides of the trapezoid?
(photo)

Answers

The midpoints of the sides of the trapezoid are:
M  ( - 1 , 1 ), N ( 1, - 1 ), P ( 3, 1 ), Q ( 1, 3 ).
MN = NP = PQ = QM = √ ( 2² + 2² ) = √ 8 = 2√2
∠MNP = ∠NPQ = ∠PQM = ∠QMN = 90°
Answer:
The quadrilateral formed by joining the midpoints of the sides of the trapezoid is a square

Sinea spent $8 on games and $12 on souveniers. if she spends $26 on games, how much will she spend on souveniers?

Answers

there should always be an interval of $4 so just take $26 - $4 = $22 that will be spent on souvenirs.
Hope this will help.

Wriye the mixed number as a fraction 4 1/3

Answers

A mixed number is a fraction but if you want it as a improper fraction, multiply the denominator by the unit so, 
4*3=12 
add 1 (from the numerator) 
12+1=13  

Your fraction would be 13/3 because the denominator stays the same.  

Write two million three hundred and twenty thousand five hundred and two as a number.

Answers

2,320,502. That would be the answer.

Step-by-step explanation:

i was trying to figure out if I can always handle your math exams would it be possible

#1: The theoretical yield of a reaction is 5.00 moles of potassium permanganate (KMnO4). If the reaction actually produces 695.2 g KMnO4, what is the percent yield of the reaction?

A. 78%

B. 83%

C. 88%

D. 120%

Answers

Final answer:

To calculate the percent yield, the actual yield in moles of potassium permanganate was found to be 4.40 moles from 695.2 g, using the molar mass of KMnO4. Then, the percent yield was calculated using the theoretical yield of 5.00 moles, resulting in 88%.

Therefore, the correct answer is C. 88%

Explanation:

To calculate the percent yield of the reaction, we first need to know the moles of potassium permanganate (KMnO4) that correspond to 695.2 g. We use the molar mass of KMnO4 which is 158.04 g/mol to convert grams to moles.

Actual yield in moles = mass (g) / molar mass (g/mol) = 695.2 g / 158.04 g/mol = 4.40 moles of KMnO4

Now, with the theoretical yield of 5.00 moles, we can find the percent yield using the formula:

Percent yield = (actual yield / theoretical yield) × 100%

Percent yield = (4.40 moles / 5.00 moles) × 100% = 88%

Therefore, the correct answer is C. 88%

what is the solution for the equation for X -10 equals 2X? X equals blank

Answers

x - 10 = 2x
- x
-10 = x
Hope this helps!

What's the answer ?????

Answers

1/2 because it's 2 times smaller

The ratio of the number of cars to the number of motorcycles in a parking lot is 10:3. The ratio of the number of motorcycles to the number of vans is 2:5. There are 30 cans in the parking lot. How many more cars than vans are there?

Answers

I thought it was motorcycles I don't get it

How much money will Rachel have in her account in ten years

Answers

200(1+0.06/2)^2*10==361.22
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