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a tree casts a shadow that is 20 feet long. the angle of elevation from the end of the shadow to the top of the tree is 66 degrees. Determine the height of the tree to the nearest foot.

A tree casts a 25 foot shadow. At the same time of day, a 6 foot man standing near the tree casts a 9 foot shadow. What is the approximate height of the tree to the nearest foot?

I struggle in the sciences and was wondering what I could do over the summer self studying wise to prepare for 10th grade chem?

english
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If i want to compare the length of a shadow cast by a basketball goalpost 10ft with 2ft backboard shadow 69 inches to the shadow of the goalpost measured with a yardstick the shadow is 18inches and i get 3ft 6in for the goalpost & backboard can I say that the height of the ...

English
1. What day is your birthday? - It is June 14th. - It is the second Monday. 2. When is your birthday? - It's this Friday.﻿ - It is on January 10th. - It is January 10th. 3. What date is your birthday? - It is January 10th. - It is on January 10th. ----------------------- Are...

what classes should i take in 10th grade?

how i get an unssen workssheets for 10th greade?

i have to make a project on safer construction practises for flood help me but want only 10 questions on this topic

math
Riding on a school bus are 20 students in 9th grade, 10 in 10th grade, 9 in 11th grade, and 7 in 12th grade. Approximately what percentage of the students on the bus are in 9th grade?

At the same time that a flagpole casts a 4.5 m shadow , a meter stick casts a 1.5 m shadow. How tall is the flagpole ?

The students of litchfield High school are in grades 9,10,11,12. Of the students , 1/4th are in 9th grade, 1/3rd are in 10th grade, 1/6th is in 11th grade and there are 300 in the 12th grade, how many students are there all together?

Biochem

if a person is 6 feet tall and casts a 9 foot shadow, how tall would the shadow of a 100 foot tall tree be?

10th
i am just abt to finish my 10th grade,i am very weak at maths and science,hence i have opted to take economics. 1.is this the right choice? 2.is there goin to be maths in it? 3.what are the core subjects involved?

person 6 ft.tall casts a shadow of 8 ft. long what is height of nearby building that casts a 72 ft shadow at same time

Physics

Plz help with 8th grade math
Jack’s brother Joey is learning about shadows in school. Joey measures Jack’s shadow and finds that it is 4 feet long. Joey looks over at a 56-foothigh building next to the 2 of them and wonders how long the shadow of the building is. Assuming Jack is 5 feet tall, how long...

plz suggest me some good thoughts which i can use in writing compositions in my 10th board exams which is on the 3rd of march. as in slogans,or some quotations or what ever material which will make my composition interesting. thanx!!

3(x-2)= 4-(x-2)

(4x^4-3x^3-x+3) + (2x^3 + 3x - 4)

(-2x + 6)(x + 4) 4(13 - 6) - 4^2 + 3^3

What is 3X^2-7=11

300/90+21=

300/90+21-43+42=

math
a student is selected at is the probability the the randomly selected stundent is neither a 10th grade nor an 11th grade express your answer in fraction in simplest form

how do i solve for y in the equation -5y(6y - 6) - y = -4(y - 5)

i need an interesting topic for a tenth grade informative essay

3a²-a-4=0 solving for the roots,

How do you solve? 3-3sinx-2cos^2(x) = 0

Algebra

Math
A woman wants to measure the height of a nearby tower. She places a pole in the shadow of the tower so that the shadow of the pole is exactly covered by the shadow of the tower. The distance between the pole and the tower is , and the pole casts a shadow that is long. How tall...

Why is it important to understand rational exponents?

What is a "Slope, Midpoint & Distance"? This is the problem: (7,3) and (-1,-4)

HOW DO YOU YOU ADD ALL THE HEARD MATH WITH THE EASY

math
George has been hired to paint the smith's house. He needs to be sure his ladder will reach the highest part of the house, so he decides to use the shadow method. The measuring stick is 3 ft., and tits shadow is 5 feet. The shadow of the house is 45 feet. The shadow of the ...

A quiz had only 3-point questions and four-point questions. The best possible score is 100, and there are 29 questions. How many 4-point questions are there?

Why is it important to understand rational exponents? How does it work with radicals?

how to solve triangles with parrellel lines running through them!

How do you multiply algebraic expression such as..... (5x^3)(4xy^2)

a tree casts a 25 foot shadow on a sunny day if the angle of elevation from the tip of the shadow to the top of the tree 32 degrees, what is the height of the tree to the nearest thenth of a foot?

Please help me with these factorise algebra questions!!! 1. 9c squared + 30c + 25 - 4d squared 2. 12 + 89 - 4a squared 3. -5x squared + 27x - 10 4. If A= 15x squared - 20x +11 and B= 1 + 9x+ 5x squared, then A-B when factorised is...

Geometry
I have a project due this week and I have to make a board game, so I need 15 questions about right triangles. I already have about 7, so is there a website with some examples? This is 10th grade geometry.

solve each equation for y. do x and y vary directly? if so indentify the constant of variation. 1.4x=5y 2.2x+3y=6

Which expression repeersents the phrase'' twice the quotient of 50 and the sum of a number y and 8?''

MATH - GEOMETRY/TRIGONOMETRY
A 6 foot man stands by a 30 foot radio tower and casts a 10 foot shadow. How long is the shadow cast by the tower and what time is it? I got 50 feet for the length of the shadow. What I cannot find out is, what time is it? I NEED THE TIME OF DAY. **NOT** THE LENGTH OF THE ...

At a certain time of day, a person's shadow is twice her height. What ratio describes this relationship? At this time of day, Gene's shadow measures 320cm. What is his height?

A yardstick casts a shadow of 24 in. at the same time a telephone pole casts a shadow of 20 ft 8 in. What is the height of the telephone pole, to the nearest inch? (1 yd = 36 in., and 1 ft = 12 in.)

math
A tree casts a shadow that is 20 feet long. A 5-foot-tall boy stands in the shadow so that the end of his shadow lines up with that of the tree. His shadow is 6 feet long. How tall is the tree

Math 9
A 6 m flagpole casts a 5 m shadow at the same time of the day as a building casts a 28m shadow. How tall is the building? I drew out a flag and a building, with a shadow coming from the top to the ground. What do i do next?

ALL subjects..
Hi!! Well,I'm in tenth grade And I was wondering if there are any practice test websites for the 10th grade Test.. I believe Pct? Please!! Help..

how can you figure out the length of a shadow if you walk closer to a lamppost?

Geometry
Starla is 5feet 9inches tall. To find the height of a tree,she measured her shadow and the tree's shadow. Her shadow was 8feet long when the trees shadow was 30 feet long. To the nearest foot,how tall is the tree?

5x+6/10+=4x-8/6

a{n}=n(3n+5)

(-7+p)(8+p)

(2u+9)(2u+1)

3x-2-x=7-x

if AB=3x-2 and BC=x+6, what is x?

2x-y=-5 -2x-5y=11

ENGLISH
The phrase "my eye caught the shadow means" : A. I saw the shadow out of the corner B. My eye went and grabbed hold of a shadow C. The shadow grabbed my eye D. I saw a man standing at my side

Math (trigonometry)
MONDAY  December 3, 2012 SCHOOL SUBJECTS Art Business Computers English Foreign Languages Health Home Economics Math Music Physical Education Science Social Studies GRADE LEVELS Preschool Kindergarten Elementary School 1st Grade 2nd Grade 3rd Grade 4th Grade 5th Grade 6th ...

Simplify: (1-i)^3 Here's how I break it down using the formula (x-y)^3 but I just don't know how to get to the final answer. Please help. = 1-3i+3(i)^2-(i)^3 Thank you

Algebra II
If one leg of a right triangle is 5 times the square root of 3 centimeters, and the hypotenuse is 2 more than the other leg, what is the length of the other leg? While it does say please show my work, I literally have NO idea how to solve this, and this is one of my last ...

math
At a given time, the height of an object is directly proportional to the length of the shadow that is cast on the ground. A person 6 feet tall casts a shadow 1 foot long at noon. a) What is the length of the shadow cast by a flagpole known to be 20 feet tall? b) A tree cast a ...

Math
The shadow of an object varies directly as its height h. A man 1.8 m tall casts a shadow 4.32 m long. If at the same time a flagpole casts a shadow 12.8 m long, how how is the flagpole?

rbm
A meter stick dropped a shadow of length 70 cm in the sun .at the same time ,a tree dropped a shadow 5.6m long .what is the height of the shadow

7x+11y=-5

8h^2-4h

427.50 is 10% of what

what is esterification

How do u do (3x)cubed

-8(-3-4 v)+5(5v+2)=-80 solve for v

BC=3x+2 and CD= 5x-10. Solve for x.

If ab=6y & bc=8y What is BD In Terms Of Y.??

algebra 2
An object's height varies directly with the length of its shadow. A person who is 5 feet tall casts an 8-foot shadow. How long is the shadow of a 20-foot tree?

A lamppost casts a shadow of a man who is standing 15 feet away from the lamppost. The shadow is 5 feet long. The angle of elevation from the tip of the shadow to the lamp is 50. To the nearest foot, the lamppost is _____ feet tall. (Points : 2)

prealgebra
a 12ft building casts a shadow. The distance from the top of the building to the tip of the shadow is 19ft. Find the length of the shadow.

Algebra
A 12ft tall building casts a shadow. The distance from the top of the building to the tip of the shadow is 18 ft . Find the length of the shadow.

WHAT GOES AFTER GEIORGE, THOMAS, ABE, ALEXANDER IN A PATTERN THE NEXT TWO NAMES? MATH:GEOMETRY

Math
1c. At 11:00 AM Corina's shadow is 40 inches long. How long is Drew's shadow? HOw long is the signpost's shadow? Explain. Drew's shadow is 17 inches?

MATH-PERCENTILES
I JUST TOOK A TEAS TEST(FOR PRACTICAL NURSING ADMISSIONS). THE REQUIREMENTS MUST BE A GRADE IN AT LEAST THE 40TH PERCENTILE IN EACH SUBJECT. THERE WAS A MATH, READING,ENGLISH, AND SCIENCE SECTION. TOTAL OF QUESTIONS WERE 170.MATH-45? READING-40? ENGLISH-55 ? SCIENCE-30 ? I WAS...

15mm to dam

6ab^2-(q-r)^2

solve (2x+3) exponet2over3=3

2b/4+b/3=10 solve for b.

solve for n. |3n+5|=7

solve for x. |x+9|=17

2b/4 + b/3 = 10 solve for b.

how do you balance bic

2y^2*3xy^3 divided by 3x^2y^4

I need help with this problem. (b+7)(b+1) .

Solve for x? 0 = -9/5 x -9

Math [Geometry]
A 6 foot man stands by a 30 foot radio tower and casts a 10 foot shadow. How long is the shadow cast by the tower and what time is it? I got 50 feet for the length of the shadow. What I cannot find out is, what time is it?

math
ok i have 10th grade math next year and i don't even know half the stuff for this year and its summer brake and im worrying about math..what do i do

There are 50 questions on a test. If a 60% is considered passing, how many questions do you have to get right to pass?

Geometry
To find the height of a flagpole Kasey measured her own shadow and the flagpoles shadow. KAsy's height is 5ft 4 inches. The shadow of the flagpole was 14ft and 3 inches and her shadow was exactly 3 ft. What is the height of the flagpole

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