1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
frez [133]
3 years ago
7

A guy wire is used to support flagpoles in windy areas. These wires are anchored in the ground to provide constant stability. Yo

u need to replace the guy wire on a pole that is 20 feet tall.. The anchor point for this flagpole is 15 feet away from the base of the pole. a. How long is the wire you need to purchase to replace the old wire? b. You are also helping a friend determine the length of a guy wire for a 10-foot flagpole. The wire needs to be anchored 6 feet from the base of the pole. You can purchase guy wires in whole foot lengths only. Using your knowledge of perfect squares, estimate the length of wire you would need to complete the project. How much wire would be left over?

Mathematics
1 answer:
r-ruslan [8.4K]3 years ago
8 0

Answer: a) Length of wire to replace old one=9ft

b) Length of wire=3.09ft

Leftover wire=0.91ft

Step-by-step explanation: from the right angle triangle, Tan&=20/15

&=53.13°

Length of wire,x=cos 31.13=x/15

15cos31.13

X=9

b) Tan&=10/6

Tan^-110/6

&=59.05

Length= 6cos59.04

X=3.09

4-3.09=.91= leftover wire

You might be interested in
The density of a certain material is such that it weighs 6 pounds per pint of volume.
ella [17]

Answer:

Density = 5751.66 gram per litre

Step-by-step explanation:

It is given that the density of a certain material 6 pounds per pint.

The conversion from pint to liter is as follows :

1 pint = 0.473 litre

The conversion from pounds to kg is as follows :

1 pound = 453.59 kg

We need to express the density from pounds per pint to grams per liter.

1 pound per pint = 958.611 gram per litre

So,

6 pound per pint = 958.611 × 6 gram per litre

6 pound per pint  = 5751.66 gram per litre

3 0
2 years ago
I need help solving this ​
Savatey [412]

Check the picture below.

5 0
3 years ago
Women's heights average 65 inches with a standard deviation of 2.2 inches in a certain study. Use the 68-95-99.7 rule to determi
vodomira [7]

• We are told that the average height : Mean () = 65

,

• Standard deviation : SD () = 2.2

• 95 % 0f women height range = +- 3

= 65 +-3( 2.2)

= {65 + 6.6 ; 65 -6.6}

= {71.6 ; 58.4}

• This means that 95 % 0f women height will range between ( 58.4 ) and (71.6 )

3 0
1 year ago
9. The product of two rational numbers<br> is a(n)
katrin2010 [14]

Answer:

rational

Step-by-step explanation:

6 0
3 years ago
Joe bought a box of laundry detergent that contains 195 scoops.
7nadin3 [17]

Answer:

78 laundries

$0.25

Step-by-step explanation:

If the box contains 195 scoops and at once he uses 2 1/2 you have to divide 195 by 2 1/2 and you get 78.

How much is he paying for each load? you have to find the unit rate. The box costs $19.99 he can do 78 laundries at once so you divide the money by the quantity or in other words $19.99 by 78 and get 0.2562820512820513, since we are talking about money we use only the firs two decimals, so he pays $0.25 per load of laundry.

8 0
2 years ago
Other questions:
  • Does 65-(45-20)equal (65-45)-20? how do you know?
    10·2 answers
  • The perimeter of a rectangle is 34 feet. if the length is 2 more than 4 times the width, find the dimensions of this rectangle
    10·1 answer
  • Write an equation that gives the proportional relationship of the graph. A) y = 1 8 x B) y = 8x C) y = 9x D) y = 72x
    13·2 answers
  • The container that holds the water for the football team is 25 full. After pouring in 8 gallons of water, it is 23 full. How man
    15·1 answer
  • The function f(x)= - (x+2)^2+16 has been rewritten using the completing-the-square method. The function g(x) =4x^2+16x+24. Which
    15·1 answer
  • PLEASE HELP!!!! I NEED TO DO THIS IN ANOTHER SHARP TEN MINUTES!! PLEASE!! I BEG YOU PEOPLE!!
    7·1 answer
  • If 18 more than 2 times a number is -10, what is the number?
    13·1 answer
  • PLEASE HELP ASAP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
    14·2 answers
  • Calculate the length of the unknown side of each triangle.
    8·1 answer
  • Min spends this amount of money. He buys a pen for $2 and an ink cartridge that is on sale for $10 off the regular price of $35.
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!