The radius of circle L is 22 cm. What is the length of its diameter? A. 88 cm B. 44 cm C. 22 cm D. 11 cm

QUESTION POSTED AT 18/01/2020 - 07:03 AM

Related questions

True or false. The sine of an angle in a right triangle is equal to the ratio of the length of the side adjacent to the angle divided by the length of the hypotenuse. ...?

Answer:  The given statement is FALSE.

Step-by-step explanation:  We are given to check whether he following statement is true or false :

"The sine of an angle in a right triangle is equal to the ratio of the length of the side adjacent to the angle divided by the length of the hypotenuse. "

Let us consider the right-angled triangle ABC as shown in the attached figure below.

With respect to acute angle C, we can see that

perpendicular, p = AB

base, b = BC

and

hypotenuse, h = AC.

We know that

sine of an angle in a right-angled triangle is equal to the ratio of the perpendicular to the base.

So, we must have

\sin \angle C=\dfrac{p}{h}\\\\\\\Rightarrow \sin \angle C=\dfrac{AB}{AC}.

Since AB is the opposite side to angle C, not adjacent, therefore

sine of any angle in a right-angled triangle is the ratio of the length of the OPPOSITE SIDE to length of the hypotenuse.

Thus, the given statement is FALSE.

ANSWERED AT 16/02/2020 - 06:38 PM


QUESTION POSTED AT 16/02/2020 - 06:38 PM

Find the area of the regular polygon. Give the answer to the nearest tenth. dodecagon with a perimeter of 108 cm ...?

A regular dodecagon is a polygon with 12 equal sides.
Length of each side = 108/12 = 9 cm.

Length of the apothem = (9/2)/tan 15 = 9/2tan 15 = 16.79 cm

Area of each triangle = 9/2(16.79) = 75.57 cm^2

Therefore, area of the dodecagon = 12(75.57) = 906.9 cm^2

ANSWERED AT 16/02/2020 - 06:36 PM


QUESTION POSTED AT 16/02/2020 - 06:36 PM

A rectangular table is two times as long as it is wide. If the area is 50ft^2, find the length and the width of the table.

10ftx5ft .........................................................................................................................................................................................................................................................................................

ANSWERED AT 16/02/2020 - 06:32 PM


QUESTION POSTED AT 16/02/2020 - 06:32 PM

The medians of a triangle are the line segments from each vertex to the midpoint of the opposite side. Find the lengths of the medians of the triangle with vertices at A=(0,0), B=(6,0), C=(4,4) ...?

Answer:

\sqrt{29} , \sqrt{20} , \sqrt{17}

Step-by-step explanation:

Consider ΔABC with vertices A\left ( 0,0 \right )\,,\,B\left ( 6,0 \right )\,,\,C\left ( 4,4 \right ) such that P , Q , R are midpoints of sides BC , AC and AB .

We know that midpoint of line segment joining points \left ( x_1,y_1 \right )\,,\,\left ( x_2,y_2 \right ) is equal to \left ( \frac{x_1+x_2}{2}\,,\,\frac{y_1+y_2}{2} \right )

Midpoints P , Q , R :

P\left ( \frac{6+4}{2}\,,\,\frac{0+4}{2} \right )=P\left ( 5\,,\,2 \right )\\Q\left ( \frac{0+4}{2}\,,\,\frac{0+4}{2} \right )=Q\left ( 2\,,\,2 \right )\\R\left ( \frac{6+0}{2}\,,\,\frac{0+0}{2} \right )=R\left ( 3\,,\,0 \right )

We know that distance between points \left ( x_1,y_1 \right )\,,\,\left ( x_2,y_2 \right ) is given by \sqrt{\left ( x_2-x_1 \right )^2+\left ( y_2-y_1 \right )^2}

Length of AP :

AP = \sqrt{\left ( 5-0 \right )^2+\left ( 2-0\right )^2}=\sqrt{25+4}=\sqrt{29}

Length of BQ :

BQ = \sqrt{\left (2-6 \right )^2+\left ( 2-0 \right )^2}=\sqrt{16+4}=\sqrt{20}

Length of CR :

\sqrt{\left (3-4\right )^2+\left ( 0-4 \right )^2}=\sqrt{1+16}=\sqrt{17}

ANSWERED AT 16/02/2020 - 05:32 PM


QUESTION POSTED AT 16/02/2020 - 05:32 PM

name the property used in each equation. then find the value of n. 2.) 1·n=8 3.) 28·n=0 4.) 0+n=22 5.) 1/4·n=1

2. n = 8 (Identity property)
3. n = 0 (Zero Property)
4. n = 22 (Additive Identity Property)
5. n = 4 (Fractal property)

ANSWERED AT 16/02/2020 - 05:29 PM


QUESTION POSTED AT 16/02/2020 - 05:29 PM

find a ratio equivalent to each ratio ` then use the ratios to write a proportion * 1) 22 / 30 2) 7 / 9 3) 18 / 54 4) 10 / 17

22/30 = 11/15
7/9 = 14/18
18/54 = 1/3
10/17 = 20/34

A proportion can be set up by using the general formula:
a/b = c/d
ad = bc

ANSWERED AT 16/02/2020 - 04:10 PM


QUESTION POSTED AT 16/02/2020 - 04:10 PM

Write the equation of the circle with center (-11, 3) and radius r = 9. Use the ^ key for the exponents. Write your answer as the example: (x - 4)^2+(y+8)^2=25

The equation of a circle with center (a, b) and radius = r is given by (x - a)^2 + (x - b)^2 = r^2
If center is (-11, 3) and radius is 9, then equation is
(x - (-11))^2 + (y - 3)^2 = 9^2
(x + 11)^2 + (y - 3)^2 = 81

ANSWERED AT 16/02/2020 - 04:09 PM


QUESTION POSTED AT 16/02/2020 - 04:09 PM

Two similar prisms have heights 4 cm and 10 cm. What is the ratio of their surface areas? A) 2:5 B) 4:25 C) 4:10 D) 8:125

H 1 : H 2 = 4 : 10
H 1 = 2/5 H 2
and also for the base: L 1 = 2/5 L 2 and W 1 = 2/5 L 2
 A 1 = 2 L 1 x W 1 + 2 L 1 x H 1 + 2 W 1 x H 1
A 2 = 2 L 2 x W 2 + 2 L 2 x H 2 + 2 W 2 x H 2
A 1 / A 2 = 4/25 *( 2 L 2 x W 2 + 2 L 2 x H 2 + 2 W 2 H 2 ) /
                 / ( 2 L 2 x W 2 + 2 L 2 x H 2 + 2 W 2 x H  2 ) =
= 4/5
A 1 : A 2 = 4 : 25
Answer:  B ) 4 : 25

ANSWERED AT 16/02/2020 - 04:08 PM


QUESTION POSTED AT 16/02/2020 - 04:08 PM

A ferris wheel is 35 meters in diameter and boarded at ground level. The wheel makes one full rotation every 8 minutes, and at time t = 0 you are at the 9 o'clock position and descending. Let f(t) denote your height (in meters) above ground at t minutes. Find a formula for f(t).

F(t) = -17.5sin((t/4)*pi) + 17.5
Because the ferris wheel is a circle you can use sine and cosine. As we are descending and in the middle of the descent the use of negative sine makes the most sense.
Period = 2pi.
Our period is 8 minutes.
8 minutes*w = 2pi
w = (t/4) * pi.
The 17.5 at the end is to take into account that we are 17.5 meteres up in the air at the start.

ANSWERED AT 16/02/2020 - 04:07 PM


QUESTION POSTED AT 16/02/2020 - 04:07 PM

The function h(d) = 2d+4.3 relates the h height of the water in a fountain in feet to the d diameter of the pipe carrying the water. Graph the function on a calculator and use the graph to find the height of the water when the pipe has a diameter of 1.5 inches

You can do what the directions say and enter the function into a calculator. if you're having trouble learning how to graph on a calculator, i would suggest looking up a tutorial with pictures or videos, since it would be really confusing to explain through text alone on this site.

however, you can solve it without use of a calculator; just plug in 1.5 inches for d.

h = 2(1.5) + 4.3
h = 7.3

the height is 7.3 when the diameter is 1.5

the way you should find this on a graph entered into a calculator would be by "tracing" the graph ("trace" should be a button on your calc). it prompts you to pick like a left/right bound, if i remember correctly, and it'll guess the point in the middle of them. if a graphing tutorial isn't helpful, you can always refer to the table function as well and change the settings so that it lets you enter your own x-values (yet another thing you can find how to do in the instruction booklet that came with your calc, or a visual tutorial). sorry i couldn't be more helpful in regards to the actual graphing! it's just a pretty confusing process to explain unless you can physically show the person with a calc of your own

ANSWERED AT 16/02/2020 - 04:02 PM


QUESTION POSTED AT 16/02/2020 - 04:02 PM

Steven cuts a 25-foot board into 2 pieces. One piece is 4 feet more than 2 times the length of the second piece. What is the length of the second, shorter, piece of the board?

Answer:

The length of the shorter piece of the board is 7 ft.

Step-by-step explanation:

Given,

The 25-foot board into 2 pieces.

Let x be the length of one piece,

So, the length of the other piece = ( 25 - x ) feet,

Now, according to the question,

25 - x = 2x + 4

-x - 2x = 4 - 25

-3x = - 21

x = 7

Hence, the length of two pieces are 7 feet and 18 feet,

In which 7 feet is the length of shorter piece.

ANSWERED AT 16/02/2020 - 04:02 PM


QUESTION POSTED AT 16/02/2020 - 04:02 PM

What is the volume of a cube that's length is 6 yards

I think the volume is 24

ANSWERED AT 16/02/2020 - 06:11 AM


QUESTION POSTED AT 16/02/2020 - 06:11 AM

I still don't understand y help me on 11 and 12 HELP ME PLZ?!?

Number 11 is first it goes down by 3 then it goes down by 2 then is goes down by one

ANSWERED AT 16/02/2020 - 06:05 AM


QUESTION POSTED AT 16/02/2020 - 06:05 AM

Laura spun a blue and green spinner 23 times. It landed on green 11 times. How many times did it land on blue ?

It landed on blue 12 times

ANSWERED AT 16/02/2020 - 05:07 AM


QUESTION POSTED AT 16/02/2020 - 05:07 AM

Kevin can travel 22 1/2 miles in 1/3 hour. What is the average speed in miles per hour?

67.5 45/2/1 = 1/3 * 45/2=1/3.1/3 * X=135/2=67.5 mies *

ANSWERED AT 16/02/2020 - 02:14 AM


QUESTION POSTED AT 16/02/2020 - 02:14 AM

The length of a rectangular poster is 2 times its width. if the perimeter is 24 inches, what is the area of the poster?

I think it is 48 I'm not positive

ANSWERED AT 16/02/2020 - 02:09 AM


QUESTION POSTED AT 16/02/2020 - 02:09 AM

If the radius of a circle is 5 centimeters, how long is the arc subtended by an angle measuring 60°?

The formula of getting the arc length is
arc length = angle * pi / 180 * r
arc length = 60 * pi / 180 * 5
arc length = 300 * pi / 180
arc length = 5pi / 3

The correct answer is letter A) 3/5π cm

ANSWERED AT 16/02/2020 - 02:07 AM


QUESTION POSTED AT 16/02/2020 - 02:07 AM

Please explain how to solve these using either slope intercept form or point slope form, thank you! (22-33)

I think it's -11. That's because the highest number u can subtract from 22 is 22. 33 minus 22 is ll. There's still that 11 u can't subtract because ur up to 0. So let's go past 0 to the negative numbers. And u get -11. It's like in stead of 22-33 it's 33-22! I hope that helped.

ANSWERED AT 16/02/2020 - 01:55 AM


QUESTION POSTED AT 16/02/2020 - 01:55 AM

Three friends each have some ribbon. Carol has 42 inches of riribbon, Tino has 2.5 feet of ribbon, and Baxter has 1.5 yards of ribbon. Express the total length of ribbon the three friends have in inches, feet, and yards.

It should be 126in 10.5ft and 3.5 yards. First convert to inches then divide by 12 for feet then divide by 3 for yards.

ANSWERED AT 16/02/2020 - 12:42 AM


QUESTION POSTED AT 16/02/2020 - 12:42 AM

How do you write 4 hundred-thousands,13 thousands,11 hundreds, 4 ones in standard form?

4 hundred thousands = 400 000 = 4.0 x 10^5
13 thousands = 13 000 = 1.3 x 10^4
11 hundreds = 1100 = 1.1 x 10^3
4 ones = 4 = 4.0 x 10^0

ANSWERED AT 16/02/2020 - 12:27 AM


QUESTION POSTED AT 16/02/2020 - 12:27 AM

Farrah's gross pay is $4210. Her deductions total $911.47. What percent of her gross pay is take-home pay? Question 5 options: 22% 28% 60% 78% Save

Hello,

Shall we begin?

4210.....................100%
911.47..................x

4210x = 100*911.47
4210x = 91,147
x = 91,147/4210
x = 22%

take-home pay
= 100%-22%
= 78%
 

Answers: 78%

ANSWERED AT 16/02/2020 - 12:13 AM


QUESTION POSTED AT 16/02/2020 - 12:13 AM

K is the midpoint of . if = 3x + 1 and , find the length of

3x + 1 = 1/3x + 9 Multiply through by 3 
9x + 3 = x + 27 Subtract x 
8x + 3 = 27 Subtract 3 
8x = 24 
x = 3 

AK = 3*3 + 1 = 10 

AB = 2*AK = 20

ANSWERED AT 16/02/2020 - 12:09 AM


QUESTION POSTED AT 16/02/2020 - 12:09 AM

PLEASE SOMEONE HELP ME PLEASE HELPPPPP!!!!! UNIT NAME: REAL NUMBERS AND THE COORDINATE PLANE Directions: Follow the directions to complete a posting for the CoolCrafts website explaining how to create a string of pennant flags. Your completed posting will be submitted as your portfolio assessment. Try It The best way to explain a process is to first follow the process yourself! Follow these instructions to design your own string of pennant flags. 1. Choose a room you would like to decorate. Measure its length or width. This measurement will be the length of your pennant string. 2. Choose a size of paper square to use. (Hint: Whole number side lengths will make the calculations easier.) 3. Cut the square in half along the diagonal to form two paper triangles (pennant flags). 4. Measure the length of the diagonal. Then use the Pythagorean Theorem to find its exact length. 5. You will attach each triangle to the string along its diagonal side, with no space between triangles. Divide the length of the string by the length of the diagonal to determine how many triangles you will need. © 2015 Connections Education LLC. All rights reserved. 2 Analyze It Use your pennant string design to analyze the process.  Why is your measurement of the diagonal's length different than the length you found using the Pythagorean Theorem?  Which special version of the Pythagorean Theorem can you use to find the length of any square's diagonal, d, using only the length of its side, s?  Why do you have to use estimation to find the number of triangles you need for the string? Explain It Use your design and analysis to write a website posting describing the process readers can use to make a string of pennant flags using any length string and any size square. Your posting should include the following:  step-by-step instructions  a formula that can be used to find the diagonal length of any paper square and a formula that can be used to find the total number of triangles needed  diagrams that make the instructions and formulas easier to understand  an explanation of why this craft project must involve estimation and your recommended level of precision that readers should use You may also wish to include a photograph of your string of pennant flags in your posting. Alternatively, you can include a drawing of your completed project.

What is the qusyionion 

ANSWERED AT 16/02/2020 - 12:07 AM


QUESTION POSTED AT 16/02/2020 - 12:07 AM