Mathematics High School

Agree & disagree statements: CIrcles

Circle A has a diameter of 18 inches.
Circle B has a circumference of 36 inches.

write the letter of the card in the correct column next to the letter, write your explanation as to why it belongs in the agree or disagree columns.

1. Circle A has an approximate circumference of 56.5 inches. true or false? explain.
2. Circle A has an area of 324r in2, True or false? explain
3. Circle A is approximately 151 square inches greater than Circle b. True or false ? explain.

Answers

Answer 1

Answer:

Hope the pictures will help you

Agree & Disagree Statements: CIrcles Circle A Has A Diameter Of 18 Inches.Circle B Has A Circumference

Related Questions

Brian bought 22 pounds of flour for $10. How many pounds of flour did he get per dollar?

Answers

Answer:

$2.20

You do 22÷10 and you get 2.20

please explain every step

Answers

Answer:

761680

Explanation:

[tex]\sf \boxed{\sum _{n=1}^{44}\:60\left(1.2\right)^{n-2}}[/tex]

Identify the following's:

First Term [a] = 60(1.2)ⁿ⁻² = 60(1.2)¹⁻² = 50

Common ratio [r] = 1.2

Total Terms [n] = 44

===========================

[tex]\sf Geometric \ Sum \ of \ Terms = \dfrac{a(r^n - 1)}{r-1}[/tex]

===========================

Solving Steps:

[tex]\rightarrow \sf \dfrac{a(r^n - 1)}{r-1}[/tex]

[tex]\rightarrow \sf \dfrac{50(1.2^{44} - 1)}{1.2-1}[/tex]

[tex]\rightarrow \sf 761679.5808[/tex]

[tex]\rightarrow \sf 761680 \ \ \ (rounded \ to \ nearest \ integer)[/tex]

Convert the polar coordinates (3, -5 pi/3). to rectangular coordinates.

Answers

Answer:

See below

Step-by-step explanation:

x = 3 cos (-5pi/3) = 1.5

y = 3 sin (-5pi/3) = 2.598

what is the slope this? please help thanks

Answers

Answer: the area of the X???

Step-by-step explanation:

the slope is 1/4

because it goes across by 4 and up by 1

please solve this for me ASAP

Answers

The correct answer is thermoelectric generator because it transfers heat to electricity directly or converts electrical energy to thermal power for heating or cooling.

What is a thermoelectric generator?

Thermoelectric generators are semiconductor solid-state devices that convert a temperature difference and heat flow into a usable DC power source.

The Seebeck effect is used to create voltage in thermoelectric generator semiconductor devices. This voltage is used to drive electrical current and generate usable power at a load.

From the statement given, it is a thermoelectric generator because a thermoelectric power generator transfers heat to electricity directly or converts electrical energy to thermal power for heating or cooling.

Thus, the correct answer is thermoelectric generator because it transfers heat to electricity directly or converts electrical energy to thermal power for heating or cooling.

Learn more about the thermoelectric generator here:

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Identify the equations of ellipses whose major axis lengths are twice their minor axis lengths.

Answers

The equations of ellipses whose major axis lengths are twice their minor axis lengths are

(x - h)²/4b² + (y - k)²/b² = 1 and (x - h)²/b² + (y - k)²/4b² = 1

To answer the question, we need to know what an ellipse is.

What is an ellipse?

An ellipse is part of a conic section.

The equation of the ellipse

The equation of an ellipse centered at (h,k) with major axis on the x-axis and major axis length, 2a and minor axis length 2b is

(x - h)²/a² + (y - k)²/b = 1

The equation of ellipse with major axis x-axis

The equations of ellipses whose major axis lengths are twice their minor axis lengths with ellipse centered at (h,k) with major axis on the x-axis. Since the major axis is twice the length of the minor axis, a = 2b.

So, (x - h)²/a² + (y - k)²/b² = 1

(x - h)²/(2b)² + (y - k)²/b² = 1

(x - h)²/4b² + (y - k)²/b² = 1

The equation of ellipse with major axis y-axis

The equations of ellipses whose major axis lengths are twice their minor axis lengths with ellipse centered at (h,k) with major axis on the y-axis. Since the major axis is twice the length of the minor axis, a = 2b.

So, (x - h)²/b² + (y - k)²/a² = 1

(x - h)²/b² + (y - k)²/(2b)² = 1

(x - h)²/b² + (y - k)²/4b² = 1

So, the equations of ellipses whose major axis lengths are twice their minor axis lengths are

(x - h)²/4b² + (y - k)²/b² = 1 and (x - h)²/b² + (y - k)²/4b² = 1

Learn more about ellipse here:

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100 divided by 360 please help I’m gonna cry

Answers

Simple division.

360 ÷ 100 = 3.6

[tex]\bf{\begin{matrix}\:\:\:\:\:\:\:\:\:\:\:\:\emptyspace3.\emptyspace6\:\:\:\:\:\:\:\:\:\\ 100\overline{|\smallspace360.0}\:\:\:\:\:\:\:\:\:\\ \:\:\:\:\:\:\:\:\underline{\emptyspace3\emptyspace0\emptyspace0}\:\:\:\:\:\:\:\:\:\:\:\:\\ \:\:\:\:\:\:\:\:\:\:\emptyspace6\emptyspace0\emptyspace0\:\:\:\:\:\:\:\:\:\:\\ \:\:\:\:\:\:\:\:\:\:\underline{\emptyspace6\emptyspace0\emptyspace0}\:\:\:\:\:\:\:\:\:\:\\ \:\:\:\:\:\:\:\:\:\:\:\:\:\:\emptyspace0\:\:\:\:\:\:\:\:\:\:\end{matrix}}[/tex]

I hope it helps you...Salu2!!!!

Answer:

0.277778

Step-by-step explanation:

hope this helps also please don't cry everyone loves you

What is the best way to get points on DRFROSTMATHS? BRAINLIEST TO BEST ANSWER!

Answers

Answer:

You can see your total points on your dashboard. You can see points for individual topics on the Topic Explorer. After answering each question you will see how your points have changed.

Step-by-step explanation:

PLEASE HURRY!!
What is the slope of the line that passes through (1, 4) and (-3, -3)?
A. -7/4
B. 7/4
C. -4/7
D. 4/7

Answers

Answer:

The slope of the line is option B

how do you find surface area of a rectangular prism

Answers

Answer:

To find the surface area of a rectangular prism, measure the length, width, and height of the prism. Find the area of the top and bottom faces by multiplying the length and width of the prism. Then, calculate the area of the left and right faces by multiplying the width and height.

Simplify the expression. Write your answer as a power.
64⁴/64³
The simplified expression is

Answers

Answer:

[tex]64^1\:\text{or}\:64[/tex]

Step-by-step explanation:

[tex]\displaystyle \frac{64^4}{64^3}=64^{4-3}=64^1=64[/tex]

Step-by-step explanation:

64^4/64^3= 64^(4-3)= 64^1= 64

Luke gets paid $13/hour. He got an
additional bonus of $50 for staying late one
day. He got paid $641.50 this month.
Write an equation, define your variable and
solve. How many hours did he work?

Answers

Answer:

13x+50=641.50, where x is the about of hours Luke worked. (x=45,5[h])

#95 will give brainliest to best answer!

Answers

Answer:

3/10

Step-by-step explanation:

The probability of drawing a blue card first is 3/5 (3 blue cards out of a total of 5 cards). Then the probability of drawing a blue card again will be 2/4 (the blue card you drew first is removed so there are only 2 blue cards and 4 total cards). Now we multiply the probabilities together to get the probability of drawing a blue card, not replacing it, and then drawing another blue card = (3/5)(2/4) = 6/20 = 3/10.

Hope this helps! :)

Can someone please answer this, ill give you brainliest Would be very appreciated.

Answers

Answer:

x-intercept: (4, 0), (-5, 0)

y-intercept: (0, -20)

Explanation:

x² + x - 20x² + 5x -4x -20x(x+ 5) -4(x +5)(x-4)(x + 5)

Their x-intercept: (at x intercept, y will be 0)

(x-4)(x + 5) = 0x = 4, x = -5

Their y intercept: (at y intercept, x will be 0)

y = (x-4)(x + 5)y = (0-4)(0 + 5)y = -20

Answer:

x-intercepts : (4, 0) and (-5, 0)y-intercept : (0, -20)

Step-by-step explanation:

Finding x-intercept(s)

The x-intercept's y-coordinate will be 0⇒ 0 = (x - 4)(x + 5)⇒ x = 4 and x = -5The x-intercepts are : (4, 0) and (-5, 0)

Finding y-intercept

The y-intercept's x-coordinate will be 0⇒ y = 0² + 0 - 20⇒ y = -20The y-intercept will be (0, -20)

......................
[tex]3 \times (6 + 2) - 3 + 4 \div 2 =[/tex]

Answers

Answer:

Step-by-step explanation:

Follow the PEMDAS order of operations

3 x (6 + 2) - 3 + 4 ÷ 2

Parenthesis (P):

(6 + 2) = (8)

Exponents (E):

none

Multiply/Divided (MD) left to right:

Multiply: 3 x 8 = 24

= 24 - 3 + 4 ÷ 2

Divided: 4 ÷ 2 = 2

= 24 - 3 + 2

Add/Subtract (AS) left to right:

Subtract: 24 - 3 = 21

= 21 + 2

Add: 21 + 2 = 23

see attached image.

Answers

Answer:

whats the question?

Step-by-step explanation:

what is the area of a cylinder

Answers

A cylinder's volume is =

π r² h,

and its surface area is =

2π r h + 2π r².

A circle is centered at (−4, 9) and has a radius of 11.

What is the equation of the circle?

Answers

Answer:

(x +4)² +(y -9)² = 121

Step-by-step explanation:

The equation of a circle with center (h, k) and radius r is ...

(x -h)² +(y -k)² = r²

We are given that (h, k) = (-4, 9) and r = 11. When we put these values into the equation, it becomes ...

(x -(-4))² +(y -9)² = 11²

We can simplify this a bit to ...

(x +4)² +(y -9)² = 121

Graph the following system of inequalities.
y≤ 2c + 1
y<-x-1

Answers

For equation 1:

y ≤ 2c + 1

y intercept = (0, 1)

x intercept = (-0.5, 0)

Graph Plotted Below the Line

For equation 2:

y < -x -1

y intercept = (0, -1)

x intercept = (-1, 0)

Graph Plotted Below the Line

Option B is correct

Please can anybody help me with this:
Show that (x − 9)(x − 1) ≡ x^2 − 10x + 9

Answers

We will expand the factored form of (x − 9)(x − 1) into the same form as x² − 10x + 9 to show they are equal.

Distribute and multipy out:

(x − 9)(x − 1)

x * x = x²

x * -1 = -x

x * -9 = -9x

-9 * -1 = 9

Add together:

x² + -x + -9x + 9

x² − 10x + 9

Use the Reflexive property:

x² − 10x + 9 = x² − 10x + 9 ✓

Ships arriving in U.S. ports are inspected by Customs officials for contaminated cargo. Assume, for a certain port, 20% of the ships arriving in the previous year contained cargo that was contaminated. A random selection of 50 ships in the current year included 5 that had contaminated cargo. Does the data suggest that the proportion of ships arriving in the port with contaminated cargoes has decreased in the current year

Answers

The value of the np is 10, and the value of the nq is 40 which is less than 5 also the hypothesis H0: p = 0.20 versus H1: p<0.20

What are the null hypothesis and alternative hypothesis?

The null and alternative hypotheses are two generalizations about a population that are strictly contradictory. The null hypothesis can be denoted by H₀ and the alternative hypothesis can be denoted by H₁.

We have:

n = 50

p = 20% = 0.02

q = 1-p = 1- 0.02 = 0.08

[tex]\rm n_p = 50 \times 0.20 = 10\\\\\rm n_q = 50\times 0.80 = 40[/tex]

[tex]\rm n_q > 5\\\\\rm n_p > 5[/tex]

The conditions are verified for this test.

Null hypothesis H0: The number of ships arriving in ports with hazardous cargoes has remained constant.

Alternative hypothesis H1: The number of ships arriving in port with polluted goods has dropped.

H0: p = 0.20 versus H1: p<0.20

Thus, the value of the np is 10, and the value of the nq is 40 which is less than 5 also the hypothesis H0: p = 0.20 versus H1: p<0.20

Learn more about the null hypothesis and alternative hypothesis here:

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A hotel with 80 rooms has 45 for doubles
and 35 singles. Singles can be booked in
any room, but reservations for two or
more people must be booked in double
rooms.
Let x be the number of single reservations and y
the number of reservations for two or more.
Which system of inequalities represents this
situation?
Click on the correct answer.
x ≥ 35 x + y ≤ 80
y ≤ 45 x + y ≤ 80
x≤ 35 x+y≤ 80
y≥ 45 x + y ≤ 80

Answers

Answer:

y ≤ 45

Step-by-step explanation:

First y must be less than or equal to 45.

y ≤ 45 x + y ≤ 80

And total number of reservations cannot exceed 80:

x + y ≤ 80.

HOWW DO I DO THIS????
WEIRD EXACT TRIG QUESTION (cannot use a calculator)

Answers

Answer:

[tex]\huge{\red{\angle ABC = \boxed{30}\degree}}[/tex]

Step-by-step explanation:

[tex]\sin \angle ABC =\frac{p}{30}......(1)[/tex] (Given)

In [tex] \triangle ABC,[/tex] sin ratio of [tex] \angle ABC[/tex] can be given as:

[tex]\sin \angle ABC =\frac{AC}{AB}[/tex]

[tex]\implies \sin \angle ABC =\frac{2p+10}{80}......(2)[/tex]

From equations (1) and (2), we find:

[tex] \frac{p}{30}=\frac{2p+10}{80}[/tex]

[tex]\implies 80(p)=30(2p+10)[/tex]

[tex]\implies 80p=60p+300[/tex]

[tex]\implies 80p-60p=300[/tex]

[tex]\implies 20p=300[/tex]

[tex]\implies p=\frac{300}{20}[/tex]

[tex]\implies p=15[/tex]

[tex]\implies \sin \angle ABC =\frac{15}{30}[/tex]

[tex]\implies \sin \angle ABC =\frac{1}{2}[/tex]

[tex]\implies \sin \angle ABC =\sin 30\degree\:\:\:\:(\because \sin 30\degree=\frac{1}{2})[/tex]

[tex]\implies \huge{\red{\angle ABC = \boxed{30}\degree}}[/tex]

A $52.50 screen door is on
sale for $42. Find the percent
of discount on the door.

Answers

Answer:

20%

Step-by-step explanation:

Given/To Find:

A $52.50 screen door is on

sale for $42. Find the percent

of discount on the door.

Solve:

Formula: Value 1 - Value 2 ÷ Original Value × 100

Hence we have:

52.50 - 42 = 10.5

10.5 ÷ 52.50 = 0.20

0.20 × 100

=20%

Check Answer:

52.50 × 20% = 10.5

52.50 - 10.5 = 42

Hence, the percent of discount on the door is 20%

Kavinsky

Can someone say the answer to this question with steps?
¬

Answers

Answer:

729

Step-by-step explanation:

Can someone help me with this please

Answers

I have the same name as you my name is also Jocelyn

A geometry teacher asked Charlene to define “acute triangle.” Charlene said that an acute triangle is a triangle whose three interior angles have measures less than 90°. Is Charlene’s definition valid?

Answers

Answer:

YES BECAUSE THIS DEFINITION FITS ALL ACUTE TRIANGLES AND DOES NOT FIT TRIANGLES THAT ARE NOT ACUTE

Step-by-step explanation:

i got it right on TTM

Which transformations would result in the image shown?

ABCD is reflected over both axes.
ABCD is translated right 4 units and down 3 units.
ABCD is reflected over the x-axis and translated right 4 units.
ABCD is reflected over the y-axis and translated down 3 units.
Best answer gets brainliest!

Answers

Answer:

the answer is reflected over both axes hope this helped

Can someone help

kaitlin buys candy that costs $8 per pound. she will spend less than $40 on candy. what are the possible numbers of pounds she will buy?
use p for the number ofpounds kaitlin will buy.
write your answer as an inequality solved for p.

Answers

Answer:

x≤5p

Step-by-step explanation:

40/8=5 Kaitlin can buy UP TO 5 pounds of candy at $8/pound. So she will buy less than or equal to 5 pounds

What is the scale factor of the dilation of triangle def? three-tenths three-sevenths seven-thirds 7

Answers

The scale factor of the dilation of triangle def is three-tenths i.e. 3/10

How to determine the scale factor of dilation?

From the complete question, the corresponding sides are:

DE = 10

D'E' = 3

The scale factor k is then calculated using"

DE * k = D'E'

So, we have:

10* k = 3

Divide both sides by 10

k = 3/10

Hence, the scale factor of the dilation of triangle def is three-tenths i.e. 3/10