Faiza is in a dark room. She turned on her torch and directly aimed it downwards. As a result, she saw a circular region of 6 cm diameter being lit by the torch and also saw a similar shaped light region on the ceiling. Her torch's lense's diameter is 2cm. The room is 2 meters high and the torch is 1 m above the ground. What is the diameter of the light region on the ceiling in cm?

Answers

Answer 1

Answer:

hi hows your day

Step-by-step explanation:

Answer 2
The answer would be 2 centimeters

Related Questions

Please help


Quadrilateral ABCD is a parallelogram. Let E be a point on AB, and let F$\ be the intersection of lines DE and BC The area of triangle EBF is 1, and the area of triangle EAD is 9. Find the area of parallelogram ABCD.

Answers

Answer:

24

Step-by-step explanation:

It is 24
Hope this is correct

1. Rút gọn biểu thức A(x) = (x+2)(x+3)(x+5) - (x-1)(x+4)(x+7). Từ đó tìm tất cả các giá trị x sao cho A(x) = 0.

Answers

x = -29/7

Step-by-step explanation:

A(x) = (x^2 + 5x + 6)(x + 5) - (x^2 + 3x - 4)(x + 7)

= (x^3 + 10x^2 + 31x + 30) - (x^3 + 10x^2 + 17x - 28) = 14x + 58

A(x) = 0 => 14x + 58 =0 => x = -58/14 = -29/7

Answer:

778744

Step-by-step explanation:

387t98878989890

1. 4 < 7 Multiply both sides by 3, then by 2, then by 4, then by 9

2. 11 > -2 Add 3 to both sides, then add 3, then add (-4)

3. -2 < -2 Subtract 6 from both sides, then 8, and then 2

4. -4 < 8 Divide both sides by -4, then by -2

5. Write a short explanation of the effects of the above operations. Did this affect the inequality sign? Was it still true? Why or why not?

Answers

Answer:

1. 864 < 1512

2. 12 > 0

3. question 3 is wrong -2 = -2

4. -0.5 < 1

5. In the above operations, they did not effect the inequality sign because the same operation is being done to both sides, therefore the inequality sentences all remained true.

Step-by-step explanation:

1. (3)(4) < (7)(3)

(2)12 < 21(2)

(4)24 < 42(4)

(9)96 < 168(9)

= 864 < 1512

2. 3+11 > -2+3

3+ 13 > 1 + 3

-4+16 > 4-4

= 12 > 0

3. -2 = -2 (question 3 is wrong)

4. -4/-4 < 8/-4

1/-2 > -2/-2

= -0.5 < 1

I don't understand this math question! The pictures provided and I'd love if someone can explain it to me

Answers

Answer:

Hello,

Step-by-step explanation:

The first number is

[tex]\dfrac{8}{12}[/tex]

The second number is

[tex]\dfrac{9}{12}[/tex]

Their sum is:

[tex]\dfrac{8}{12} +\dfrac{9}{12} =\dfrac{8+9}{12}=\dfrac{17}{12}[/tex]

Answer:

67

Step-by-step explanation:

Greg and his family went on a roadtrip.
Their car averaged 60 miles per hour and they
drove for 3.75 hours. How many total miles did
they drive?

Answers

Answer:50

Step-by-step explanation:

60x3.75=225

they drove 225 miles

Two boxes are shown below

What is the difference in the surface areas, in square feet, of the two boxes?

Answers

Answer:

Option (B):3

Step-by-step explanation:

S.A of Box J =57ft^2 ; using formula 2(lb+lh+hb)

S.A of BoxF=54Ft^2;using formula (6a^2)

Differenceof S.A of boxes:57-54=3

C) 21 I’m not too sure but I think it’s C or B) 3

Evaluate this expression if x = -4, y = 5, and z = -13.

x - (-z)

Answers

Answer:

-17

Step-by-step explanation:

x - (-z)

Subtracting a negative is like adding

x+z

x = -4 and z = -13

-4 + -13

-17

Answer:

[tex]-17[/tex]

Step-by-step explanation:

Step 1:  Evaluate the expression

[tex]x - (-z)[/tex]

[tex]-4 - (-(-13))[/tex]

[tex]-4 - (13)[/tex]

[tex]-4 - 13[/tex]

[tex]-17[/tex]

Answer:  [tex]-17[/tex]

I'm always forgetting how to do mean absolute deviation. Can someone remind me what the process is please?

Answers

i hope that helps. :)

Answer:

Take each number in the data set, subtract the mean, and take the absolute value. Then take the sum of the absolute values. Now compute the mean absolute deviation by dividing the sum above by the total number of values in the data set. Finally, round to the nearest tenth.

Step-by-step explanation:

In triangle JKL, JKL is a right angle, KM and is an altitude. JL=25 and JM=5, find KM

Answers

Answer:

50

Step-by-step explanation:

What is the Leading Coefficient of 3x^6-2x^9+5x-12 when written in Standard Form?
ASAP!!!!

Answers

Answer:

-2

Step-by-step explanation:

3x^6-2x^9+5x-12

Write from highest power of x to lowest power

-2x^9+3x^6+5x-12

The leading coefficient is the number in front of the highest power of x

-2

-2 because I used parentheses and it made it a whole lot easier some nice advice if you like in class try to put parentheses a little more most people in my class don’t use it but it make hard stuff way easier have a nice day

PLEASE HEEELPPP 15 POINTS PLESSEE

Answers

Answer:

200.96 yd^2

Step-by-step explanation:

Area of a circle = πr^2 where r = radius

radius = diameter/2

radius = 16/2

radius = 8

Area = π(8)^2

Area = π64

Area = 200.96 yd^2
area = 3.14r^2
16 yd / 2 = r = 8

area = 3.14(8)^2
= 3.14(64)
= 200.96 yd^2

Simplify -4|-5| - [2(-17)]

1. 54
2. 14
3. -14

Add an explanation on how you got the answer

Answers

54 is the answer of -4(-5)-(2(-17))

Answer:

1 . 54

Step-by-step explanation:

plsss helppp! i will give brainliest!!

Answers

i’m pretty sure it’s the last one (x-7, y+5)

bc if you input (2,3) 2-7, 3+5 it gives you the output -5,8
It’s the last one hope this guy

POINTS IF HELP!!! Please help me?

Answers

2.24 should be correct
i think it is 2.24 !!!!!!!

Fill in the blanks.

(image attached)

Answers

Add 14 to each side to undo the negative 14/negative sign. divide each side by 6 to undo the 6x, simplify=5

Answer:

Add 14 to each side to undo the -14. Divide both sides by 6 to undo the 6x, and  simplify to get 5.  

Step-by-step explanation:

Help me pleaseeeeeee

Answers

Answer:

B

it's a recurring number therefore it's irrational

The answer is B I believe

Find the simple interest on \$5,000 at 4% interest for 3years.

Answers


As SI =PTR/100
SI=600$
600 hope this helps :)

Determine whether each sequence is a geometric sequence. If yes, then state the common ratio.
5, 10, 15, 20,...

Answers

Answer:

Step-by-step explanation:

it is not a geometric sequence

Answer:

no

Step-by-step explanation:

Take the second  term and divide it by the first term

10/5 = 2

Take the third term and divide it by the second term

15/10 = 3/2

The ratio is not the same so it is not a geometric sequence

Mr. Jack conducted a survey among the students in his class to see what the most popular color was. The results of his survey are displayed in this table. Which statistic(s) can be used to represent the most popular color? A. the mean B. the median C. the mode D. the median and the mode

Answers

Answer:

i guess that was

C

ITS ATTICUS

Answer:

the answer is c

Step-by-step explanation:

hope it helps pls give brainliest

The table shows the length and width of Florida at its most distant points.

Determine the prime factorization of the length . Use "^" for the exponent and "x" for the multiplication.

Measurement. Distance (mi)

Length. 500

Width. 160

An example of prime factorization is the following:

Find prime factorization of 50.

1st find the factors of 50 until you only have prime numbers.

1x50

2x25=2x5x5

So the prime factorization of 50 is: 2x5^2

Answers

Answer:

5*10^2

Step-by-step explanation:

Length = 500

500= 5 *100

100=10^2

500= 5 *10^2

5*10^2 hope it helps!!

at McDonald's, you get a $1 coupon for every 3 fries you buy. What is the least number of fries you could buy in $10 in coupons?

Answers

Answer:

You must buy at least 30 fries to get 10 dollar ins coupons

Step-by-step explanation:

We can write a ratio to find the minimum

1 dollar            10 dollars

--------------- = -------------

3 fries                x fries

Using cross products

1 *x = 10 * 3

x = 30

You must buy at least 30 fries to get 10 dollar ins coupons

Answer: 10 x 3 = 30
1 coupon= 3
10 coupon= 30

a - 6 - 6a = 4

find the value of a

Answers

Answer:

-2

Step-by-step explanation:

a - 6 - 6a = 4

a-6a=10

-5a=10

a=10/-5

a=-2

Answer:

a = -2

Step-by-step explanation:

Add like terms:

a - 6 - 6a = 4

-5a - 6 = 4

Solve for a:

-5a = 10

a = -2

So, a = -2

find three consecutive integers for which 3 times the sum of the first and third integers is -342? show step by step

Answers

Answer: The integers are -58, -57, -56.

Step-by-step explanation:

The difference between two consecutive integers is 1.

If you let the smallest of the three consecutive integers equal x, then the next greater one is x + 1, and the greatest of the three is x + 2.

Integers: x, x + 1, x + 2

The sum of the first and third is: x + x + 2

3 times the sum of the first and third is: 3(x + x + 2)

That product equals -342.

3(x + x + 2) = -342

3(2x + 2) = -342

Divide both sides by 3.

2x + 2 = -114

Subtract 2 from both sides.

2x = -116

Divide both sides by 2.

x = -58

x + 1 = -57

x + 2 = -56

The integers are -58, -57, -56.

A group of 5 friends went to a baseball
game and spent a total of $93.75. If the
total money spent was divided evenly, how
much did they each spend?

Answers

Answer:

They each spent 18.75.

Step-by-step explanation:

Divide 93.75 by 5.

18.75 divide 93.75 by 4

What is the missing number in the input output table
Input: 3, 5, ? 17
Output: 16, 22, 31, 58

Answers

Answer:

input is 3 5 9 17 so hope you get the answer thanks

3, 5 , 7 , 9
good luck !

In triangle JKL, JKL is a right angle, KM and is an altitude. JL=20 and ML=15, find KL

Answers

Answer:

KL = 17.32

Step-by-step explanation:

KL² = (M L)(J L)

KL² = (15)(20)

KL²=300

√KL²= √300

KL = 17.32

Rewrite using a negative exponent.

1/3^2

Answers

Answer:

1/9 or 3^-2

Step-by-step explanation:

Ignore the value of 1/3 for now and just focus on the 3^2.

Find 3^2:

3*3 = 9

Now 9 is the denominator, therefore our answer would be 1/9 once you reassemble the fraction.

Because 1/9 is our new fraction, we can use a negative exponent to create the same result. This is because the negative exponent rule tells us that a number with a negative exponent should be put to the denominator. Therefore we can then use 3^-2.

Answer:

3^-2

Step-by-step explanation:

Joseph said that a rhombus with side lengths of 6 meters and a height of 4 meters has the same area as a parallelogram with a base of 12 meters and a height of 2 meters. Is he correct? Critique Joseph's reasoning. help plzz​

Answers

Answer:

Area(s) of both rhombus and parallelogram are equal at 24 meters squared. Therefore Joseph had the correct reasoning in regards to area(s) of both rhombus and parallelogram are equal at 24 meters squared.

Step-by-step explanation:

To equate area of the rhombus, multiply the side length and height of rhombus in meters. (6 meters×4 meters=Area of 24 m°2). Area of parallelogram = (12meters ×2 meters= 24 m°2. Area(s) of both rhombus and parallelogram are equal at 24 meters squared. therefore

He was not correct because well… it’s obvious

What is the value of the independent variable at point A on the graph?

Answers

Answer:

6

Step-by-step explanation:

The independent value refers to the x values of a graph. Point A is located at (6, 3). Therefore, the value of the independent variable is 6.

The value of the independent variable at point A on the graph is 6.

What is Independent Variable?

The cause is the independent variable. Its value is unaffected by the other study variables.

In an experimental study, an independent variable is one that you change or alter to examine its effects. It is named "independent" because it is unaffected by any other study variables.

Given:

We have two quantities from the graph one is mass in grams and another is time.

as, the masses totally depends on growth of bay with time.

So, the dependent variable is Mass and independent  variable is Time.

Now, the coordinates for Point A is (6, 3).

Hence,  the value of point A is 6.

Learn more about Independent variable here:

https://brainly.com/question/29430246

#SPJ2

solve the following equation. answer in terms of a mixed number. 7(2x+6)=1

Answers

Answer:

[tex]7(2x + 6) = 1 \\ 14x + 42 = 1 \\ 14x = - 41 \\ x = - 2 \frac{13}{14} [/tex]

7(2x+6)=1
14x+42=1
14x=1-42
14x=-41
x=-41/14
=-2 13/14
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