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
34kurt
3 years ago
6

Andy estimated that he would need 71 feet of lumber for a tree house project. He later found that the actual amount of lumber ne

eded was 60 feet. What was the percent error of Andy's estimation?
18.33%





15.49%





11%





84.51%
Mathematics
2 answers:
zhenek [66]3 years ago
4 0
x = \frac{60}{71}
x = 0.845070423
x = 84.5070423 %  
<span>x ~= 84.51%</span>
Fudgin [204]3 years ago
4 0

Answer:

the correct answer is 18.33

Step-by-step explanation:

You might be interested in
What is the solution set of (x - 2)(x - 3) = 2?.
Zinaida [17]
The solution set is X=1 and x=4
3 0
3 years ago
L1 : y = 2x , (2) find the equation of the line L2 perpendicular to L1 passing through the point P = (1, 2).
just olya [345]

Answer:

<h2>2y+x = 5</h2>

Step-by-step explanation:

Given the line L1 as y = 2x perpendicular to an unknown line L2 passing through the point P = (1, 2), we are to find the equation of line L2. to find the equation of the line L2, we will use the point-slope equation of a line expressed as y-y₀ = m(x-x₀)

m is the slope of the unknown line

(x₀, y₀) is the given point.

First is to get the slope of the known line:

comparing the line L1: y = 2x with the standard equation of the line y = mx+c, it can be seen that m = 2

Then we will calculate the slope of the required line.

Since L1 is perpendicular to L2, the product of their slope will be -1 i.e

mm₁ = -1 where m₁ is the slope of the required line L2.

Given m =2

m₁ = -1/m

m₁ = -1/2

Finally we will calculate the equation of line L2 by substituting the slope of line L2 and the point in the point slope equation above;

y-y₀ = m(x-x₀)

Given (x₀, y₀) = (1,2) and m₁ = -1/2

y-2 = -1/2(x-1)

open the parenthesis

y-2 = -x/2+1/2

multiply through by 2:

2y-4 = -x+1

2y+x = 1+4

2y+x = 5

<em>Hence the equation of the line L2 is 2y+x = 5</em>

<em></em>

8 0
3 years ago
A rectangular deck
denpristay [2]
Both dimensions were increased by 127.

The other response seems more complex so probably ignore mine. I probably misinterpreted the question.

4 0
3 years ago
Read 2 more answers
A person can do a job in 6 days. Another can do the same job in 4 days. If they work together, how long do they need to finish t
alukav5142 [94]

Answer:

12/5 days

Step-by-step explanation:

if d=number of days

w=work completed

person one completes w=d/6 (ie. after 6 days (when d=6) work will be completed (w=1))

person two completes w=d/4 (ie. after 4 days (when d=4) work will be completed (w=1))

so total work competed together w=d/6 + d/4

the job is complete when w=1 so

1 = d/6 + d/4

12 = 2d + 3d

12 = 5d

d = 12/5

6 0
3 years ago
HELP I'M GIVING BRAINLIEST!!!!!!!!!!!!!
andrezito [222]

Answer:

1. 97.2

2. 6.02%

6 0
3 years ago
Other questions:
  • Keiko runs 8 miles in 59 minutes. how many miles does she run per minute?
    6·2 answers
  • There are three numbers a ,b,c where a&gt;b and b&gt;c. Describe the positions of the numbers on a number line ????
    8·2 answers
  • A rectangular lamina of uniform density is situated with opposite corners at (0,0) and (15,4). calculate its radii of gyration a
    13·1 answer
  • 35 points in 20 minutes or 49 points in 35 minutes? Find which is greater.
    14·2 answers
  • Which is greater 5/6 or 83%
    11·1 answer
  • What do you add to 4 4/9 to make 8
    11·1 answer
  • Solve 9y = 27 How can you find the value of y
    15·1 answer
  • Solve this problem 17(5)
    9·1 answer
  • a store buys jackets for $49.99 . the markup on the jacket is $18.49.during the sales,the jacketsare sold for 57.99. what is the
    11·1 answer
  • Please don’t lie to me and tell the right answer and if you do get it correct I will give you a shout out thanks
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!