Charles decides to use the method of proportions and similar
triangles to find the height of a lamppost. He measures the length of
the post's shadow and finds it is 10 feet long. Then he holds a 12-inch
ruler perpendicular to the ground and finds that it casts a 4-inch
shadow. How tall is the lamppost?
a. 2.5 ft c. 30 ft
b. 4.8 ft d. 120 ft

Answers

Answer 1

Answer:

C. 30 ft.

Step-by-step explanation:

10 = x

12 = 4

Divide by 4

1inch shadow = 3 inches height

1 inch of a shadow is 3 inches

10 feet is 120 inches

120 * 3

360 inches height = 30 ft

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Answer 2
I think it might be A. Since sometimes shadows can come off longer than the actual object.

Related Questions

please help i don't understand. will mark brainliest. answer the both questions

Answers

Answer:

1-Undefined

2-Positive

Step-by-step explanation:

Answer:

The slope of a vertical line will always be 0

A graph with a negative slope increases from right to left

Step-by-step explanation:

what is 35.6 multiplied by 4.9.

Answers

Answer:

Step-by-step explanation:

35.6×4.9

=174.44

Answer is 174.44

Answer:

174.44

Step-by-step explanation:

35.6 x 4.9 = 174.44

  356 (take away decimal)

x    49 (take away decimal)

17,444

Don't think 17,444 is our final answer. We still have to add the decimal places. Since there was two decimals in both numbers, we add two decimals places. So:

17,444 turns into 174.44

Final Answer:

174.44

Hopefully this helps! Sorry if wrong. You are loved, and you are beautiful/handsome!

-Bee

Show step by step In a day there are 86,400 seconds. Write this number in scientific notation.

Answers

Answer:

8.64 × 104

Step-by-step explanation:

Answer:

864 x 10³

Step-by-step explanation:

help im not good with fractions!!!

Randy has 2/3 of a bag of candy left. He has 3 friends he wants to give his leftovers to. If he splits the remaining 2/3 of a bag among his 3 friends equally, what part of the bag will each friend get?

Answers

2/9 because I know that’s it

Answer:

2 please follow me fast and vote me

Step-by-step explanation:

2/3*3

= 6/3

= 2

How do I do Distance Formula? Here is the equation ( or equations I don't know if it is a equation or 2 different ones) that I need help with
They are late and I need to turn them in [tex]C(-5, -3), D(-4, -2)\\K(8 1/2, 12), L( -63/4, 7 1/2)[/tex]

Answers

Answer: view image below

Step-by-step explanation:

Hope this helps you, love!

Answer:

c and d = square root of 26 or 5.09901 in decimal

k and l = square root of 59461/2 or 60.9615 in decimal

Step-by-step explanation:

hope this helps:))

A local donut shop sells a dozen donuts for $8.64 . At this rate , how much would 14 donuts cost ?

Answers

Answer:

10.08

Step-by-step explanation:

8.64 divided by 12 is 0.72

then you multiply .72 by 14 and you get

10.08

10.08 is the answer. you simply divide the cost by the dozen which is 12, then you times it by the amount of donuts

Quadrilateral Q’R’S’T is a dilation if quadrilateral QRST, with the origin as the center of dilation.

What appears to be the scale factor used to create this dilation?

4

0.5

2

0.25

Answers

0.5 I think I hope I’m right

{0,1,-3}
---------------------------
-3 -2 -1 0 1

0n the number line.

Answers

Answer:Whats the question?

Ya what’s the question

Can someone help me please

Answers

Answer:

The slope is  [tex]\frac{1}{2}[/tex]

Step-by-step explanation:

If you graph out the points on a line, you can clearly see that the rise between the points on the graph is 2, while the run is 4. This would give you [tex]\frac{2}{4}[/tex], so if you simplify the fraction, you would get [tex]\frac{1}{2}[/tex].

The population of Austin, Texas in 1980 was 346,000 people. The population in 1990 was 472,000 people. What is the rate of change of the population with respect to the year for this function?

Answers

Answer:

12.6 thousand a year

Step-by-step explanation:

take the 346 add 126 thousand to it equaling a good 472 thousand divide 126 thousand by 10 cause it is a ten year span that equals you get 12.6 thousand.

I need brainliest please

We want to find the rate of change of the population of Austin, Texas in the years between 1980 and 1990.

The answer is: r = 12,600 people/year.

We will assume that this increase in population is modeled with a linear equation, remember that a general linear equation is:

y = a*x + b

Where the rate of change, or slope, is a.

We know that if a line passes through two points (x₁, y₁) and (x₂, y₂) the slope is given by the formula:

[tex]a = \frac{y_2 - y_1}{x_2 - x_1}[/tex]

For this case we have two points, these are:

(1980, 346,000)

(1990, 472,000)

Then the slope or rate of change is just:

[tex]a = \frac{472,000 - 346,000}{1990 - 1980} = 12,600[/tex]

To be complete we need to add the correspondent units, which are people per year.

Then the rate of change is:

r = 12,600 people/year.

If you want to learn more, you can read:

https://brainly.com/question/18904995

PLEASE HELP!!!!!!!!!!!!!!!!!

Answers

Answer:

The photo isn't clear repeat it again

A restaurant orders corn tortillas and flour tortillas. The ratio of the number of corn tortillas to the number of flour tortillas is 2 : 3. What is the ratio of the number of flour tortillas to the total number of tortillas?
3 : 8

3 : 5

2 : 8

2 : 5

Answers

Answer:

The answer  is 3:5

Step-by-step explanation:

Since the Ratio is to flour tortillas to total, we already know that the number of flour tortillas is 3.  

The total number is 5. If you add up both flour tortillas and corn tortillas the total number would be 5.

The ratio would be 3:5

Corn to flour
2:3
Flour to total
3:5
You answer is 3:5

The shaded area of the picture shows what part of the yard Rashon mowed in 15 minutes. He wonders how long it will take him to mow the whole yard.

How long will it take Rashon to mow the entire yard?


30 mins.




60 mins.



90 mins.

180 mins.

Answers

Answer:60

Step-by-step explanation:

60 because I’m big brain

k + 9 = 17

What does k value?
k=8
k=9
k=17
k=26

Answers

Answer:

8

Step-by-step explanation:

k + 9 = 17

subtract 9 from both sides:

k = 8

Answer: k=8 so I guess A haha

Step-by-step explanation:

you would just subtract 9 from each side so 17-9= 8 and boom.

You’re welcome :)

whats 2+2+2+2+2+2+2 idk know i do but someone wants 200 so ur welcom

Answers

14 ty for the points lol

Answer: 14

Step-by-step explanation:

Following the principle of PEMDAS, 2+2/2*2–2 will be calculated as 2+[(2/2)*2]-2, that is 2+[1*2]-2 and followed by (2+2)-2 which is 4–2 and the result is 2. As we know about BODMAS rule i.e brackets of division multiplication addition subtraction.

plz mark brainlest

What is 2 8 10 +(−3.5) in decimal form? Show your work

Answers

Answer:

2806.5

Step-by-step explanation:

Mark me as brainliest

it's 2806.5 because i multiplied

5(−3.4k−7)+(3k+21) find the sum

Answers

Answer:

-14k - 14

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Algebra I

Combining Like Terms

Step-by-step explanation:

Step 1: Define expression

5(-3.4k - 7) + (3k + 21)

Step 2: Simplify

Distribute 5:                         -17k - 35 + 3k + 21Combine like terms (k):       -14k - 35 + 21Combine like terms (Z):       -14k - 14

Answer:

−14k−14

Step-by-step explanation:

View attached picture!

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I need help with this. Someone told me that the answer was 52 but idk how to explain how I got it. Can you please help me out. THANK YOU SO MUCH IF YOU DO!

Part A: James bought a cake that weighs 3 and 1 over 4 pounds. How many ounces does the cake weigh? Show your work. (5 points)

[16 ounces = 1 pound]

Answers

Answer:

3 pound cake=48 ounces)4 pound cake=64 ounces

Step-by-step explanation:

[16 ounces = 1 pound]-so you got this

James bought a cake that weighed over 4 pounds.

And one that is 3 pounds,so you wanna multiply 16 x 3 and you get 48

So that leaves the 3 pound cake to be 48 ounces

Just like the first one,you wanna multiply 16 x 4 and you get 64

It is 52 because:
16 oz. are in every 1 lb., so we multiply
3 x 16 which gives you 48.
Adding the 1/4, 1/4 of 16 is 4, so add 4 to 48.
There’s your answer, hope I helped!

Relationship B has a lesser rate than Relationship A. Does this graph represent Relationship A. What table could represent Relationship B?

{Time (weeks) 3 6 8 10
{ Plant growth (in.) 4.8 9.6 12.8 16

{Time (weeks) 3 4 6 9
{Plant growth (in.) 6.3 8.4 12.6 18.9

{Time (weeks) 3 6 8 10
{Plant growth (in.) 2.25 4.5 6 7.5

{Time (weeks) 3 4 6 9
{ Plant growth (in.) 5.4 7.2 10.8 16.2

The first-quadrant graph showing a ray from the origin through the points begin ordered pair 2 comma 3 ends ordered pair and begin ordered pair 4 comma 6 end ordered pair. The horizontal axis label is Time in weeks. The vertical axis label is Plant growth in inches.

Answers

Answer:

The answer it’s 77

Answer:

the answer im pretty sure is A. (weeks) 3 6 8 10    (in) 4.8 9.6 12.8 16

Step-by-step explanation:

Is this right? I chose the last 3. Please read all of them though.

Answers

Answer:

Yes that is correct

Step-by-step explanation:

Rewrite the absolute value function y=|x|-3 as two linear functions, one that has the domain x<0, and one that has the domain x≥0.

Answers

seems the answer has been figured out

Two linear functions, one that has the domain x < 0 is y = - x - 3

And, one that has the domain x ≥ 0 is y = x + 3.

What is linear expression?

A linear expression is an algebraic statement where each term is either a constant or a variable raised to the first power.

We have to given that;

The absolute value function is,

⇒ y = |x| - 3

So, The linear function which has the domain x < 0 is,

⇒ y = - x - 3

And,  The linear function which has the domain x ≥ 0 is,

⇒ y = x - 3

Learn more about the linear function visit:

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Solve and then tell how many solutions there are. 4v – 13 – 10v = 12 – 24v + 5 + 18v

Answers

there are no solutions

An arithmetic sequence has a first term of 8 and sixth term of 38. What is the 50th term of this sequence?

Answers

Answer:

74

Step-by-step explanation:

A plant grew 7 inches in 5 months. The plant grows the same amount each month. Use this rate to complete this table.
(Redo since the last photo was all wonky and stuff)​

Answers

Answer:

1 | 1.4

2 | 2.8

3 | 4.2

4 | 5.6

5 | 7

6 | 8.4

Step-by-step explanation:

7 inches in 5 months

7/5 = 1.4

It grows 1.4 inches a month

This is the table

1 | 1.4

2 | 2.8

3 | 4.2

4 | 5.6

5 | 7

6 | 8.4

Select all the correct answers.
Terry is an up-and-coming florist who specializes in weddings. He uses 5 roses, 3 daisies, and 4 bundles of green filler to make one bouquet. If r is the cost of a rose, d is the cost of a daisy, and f is the cost of a bundle of green filler, which expression represents the cost for making 75 bouquets?
75r +75d + 75f + 12
(5r + 3d + 4f) + 75
75(5r) + 75(3d) + 75(4f)
75(5r + 3d + 4f)

Answers

Answer: The last two are right

Step-by-step explanation: 75x5= $375, 75x3=$225, 75x4=$300.

Add all the sums together and you will get the cost of 75 bouquets, which is $900. - NUMBER 3

5+3+4=12, 12x75=$900

Sorry if I'm wrong first time doing this.

Answer:

option (4) is correct. 75( 5r + 3d + 4f ) expression represents the cost for making 75 bouquets.

Step-by-step explanation:

Given: r is the cost of a rose, d is the cost of a daisy, and f is the cost of a bundle of green filler.

Terry uses 5 roses, 3 daisies, and 4 bundles of green filler to make one bouquet.

Thus, cost of one bouquet = cost of each flower used × number of flower used.

Total cost of one bouquet= 5r+3d+4f

Thus, cost for making 75 bouquets = 75 × cost of one bouquet

= 75( 5r + 3d + 4f )

Thus, option (4) is correct. 75( 5r + 3d + 4f ) is the correct expression to represents the cost for making 75 bouquets

The two opposite vertices of a square
are (-2, 2) and (1, -1). What are the other two vertices of the square?

Answers

Answer:

(-2, -1), and (1, 2)

Step-by-step explanation:

i made a grid and i made a square with the -2, 2 and 1, -1.

6.39E-26 in scientific notation please help

Answers

6.39 * 10^-26
I believe that’s the answer

Answer:

I'm so sorry I just need points :) bjsdbhdjfhedf8biehuj3

Step-by-step explanation:

Thanks

The body of a 154-pound person contains approximately 2×102 milligrams of gold and 6×103 milligrams of aluminum. Based on this information, the number of milligrams of aluminum in the body is how many times greater than the number of milligrams of gold in the body?

can you show your work too?

Answers

Answer:

2 x 1 0^2 and  6 x 10^

Step-by-step explanation:

Hope I helped

Brainliest plz :)

Triangle ABC is dilated to produce triangle A ' B ' C' with scale factor of 3/4. Which describes the relationship between the two triangles?

A - Triangle A ‘ B ‘ C’ is an enlargement of triangle ABC

B - Triangle A ‘ B ‘ C’ is a reduction of triangle ABC

C - Triangle A ‘ B ‘ C’ is congruent to triangle ABC

D - Triangle A ‘ B ‘ C’ is a mirror image of triangle ABC

Please answer this question correctly. Please

Answers

B. Triangle A’B’C is a reduction of triangle ABC.

Explanation: Since the scale factor is smaller then one it would be a reduction.
Maybe B?........................

Mrs. Nygaard’s class has 12 boys and 14 girls. She asked the class members if they prefer a field trip to the local zoo or to an aquarium. She set up a two-way table to summarize the results. Which could describe the row and column headings for Mrs. Nygaard’s table? gender and field trip preference gender and number of students who prefer the aquarium number of boys and number of students who prefer the aquarium number of girls and field trip preference

Answers

Answer:

A.)  gender and field trip preference

Step-by-step explanation:

got it right on edge2020

Answer:

A.gender and field trip preference

Step-by-step explanation:

Just did test

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___ is a type of weathering caused by a chemical reaction with water.A. CarbonationB. AbrasionC. HydrolysisD. Hydration Which of these are reasons to evacuate a building during an earthquake? Mark all that apply.A. There is a water leak.B. The building is on fire.C. There is structural damage to the building like newly cracked walls.D. There is a gas leak. Henry can type 3500 words in 70 minutes. Colin can type 1500 in 30 minutes. Brian can type 2200 words in 40 minutes. Who types at the fastest rate of words per minute? Select the correct text in the passage.In this excerpt from H. H. Munros The Open Window, which line is an example of direct characterization?Here we are, my dear, said the bearer of the white mackintosh, coming in through the window; fairly muddy, but most of its dry. Who was that who bolted out as we came up?A most extraordinary man, a Mr. Nuttel, said Mrs. Sappleton; could only talk about his illnesses, and dashed off without a word of good-bye or apology when you arrived. One would think he had seen a ghost.I expect it was the spaniel, said the niece calmly; he told me he had a horror of dogs. He was once hunted into a cemetery somewhere on the banks of the Ganges by a pack of pariah dogs, and had to spend the night in a newly dug grave with the creatures snarling and grinning and foaming just above him. Enough to make anyone lose their nerve.Romance at short notice was her specialty. Methane gas and chlorine gas react to form hydrogen chloride gas and carbon tetrachloride gas. What volume of carbon tetrachloride would be produced by this reaction if of chlorine were consumed In McCulloch v. Maryland, the Supreme Court ruled that CongressA. can establish state banks.B. has no implied powers.C. can establish a national bank.D. has only express powers where did the swine flu originate at in the Maryland County Fair? Which expression represents the factored form of 6x2-13-5 ? A ball is launched from ground level at 20 m/s at an angle of 40 above thehorizontal. A) How long the ball is in the air? B)What is the maximumheight the ball can reach? Which option will increase the rate of reaction? HELP FAST !!!!A model of a biological process is shown. What is the purpose of this process?a) to assemble nucleotides in an mRNA chain along a DNA templateb) to replicate the DNA of an organism before cell divisionc) to synthesize amino acids used to unzip strands of DNA and copy the genetic coded) to translate the genetic code into a specific sequence of amino acids Nigerian youths tend to waste more time and money on the latest trends in fashion, yet it has come to stay. Fashion will not fade, come what may. However, it is now pertinent to displace the excessive craze for fashion from the minds of youngsters. The passage best supports the statement that Why were some of Schwann and Schleidens ideas about cells incorrect Uso ________ para cubrir mi herida. (1 point)las gasaslas pastillasel botiqunla etiqueta BRAINLIEST! Please help me answer the following questions:1) How do you find the valency of an element?2) How do you determine if an element is nuetral/an isotope/ or an ion?If you could help with 1 or both questions I would really appreciate it :) Cameron is signing up for a gym membership with a one-time fee to join and then a monthly fee to remain a member. Let C represent the total cost of the gym membership over t months. A graph of C is shown below. Write an equation for C then state the y-intercept of the graph and determine its interpretation in the context of the problem. C=? The y-intercept of the function is _____ which represents? How are signals transmitted into the cell? What is the answer 55 : 60 = ___ : 12 TIMED TEST!!!!!!!!!!!!What process that occurred in the Midwestern United States in the 1930s is now occurring in the Sahel region of Africa, south of the Sahara Desert?Industrial pollutionOver fertilization of streamsDust storms and desertificationRadioactive soil A rock rolls down a hill. Which form of energy is this an example of? (2 points) aChemical bElectrical cMechanical dThermal