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
12

If takes 660 metres of fence to enclose a rectangular field. if one side is 30 metres less that twice the other side, find the d

imensions of this field (Please help)
Mathematics
1 answer:
aliina [53]3 years ago
6 0

Answer:

210 by 120

Step-by-step explanation:

perimeter=2l+2w

length= 2w-30

width= w

2(2w-30+w) = 660

6w-60= 660

6w= 720

w=120

length= 2*120-30 = 210

You might be interested in
Find the area bounded by the given curves: <br> y=2x−x2,y=2x−4
Andrej [43]

Answer:

A = [\frac{32}{3}]

Step-by-step explanation:

Given

y_1 = 2x - x^2

y_2 = 2x - 4

Required

Determine the area bounded by the curves

First, we need to determine their points of intersection

2x - x^2 = 2x - 4

Subtract 2x from both sides

-x^2 = -4

Multiply through by -1

x^2 = 4

Take square root of both sides

x = 2   or    x = -2

This Area is then calculated as thus

A = \int\limits^a_b {[y_1 - y_2]} \, dx

<em>Where a = 2 and b = -2</em>

Substitute values for y_1 and y_2

A = \int\limits^a_b {(2x - x^2) - (2x - 4)} \, dx

Open Brackets

A = \int\limits^a_b {2x - x^2 - 2x + 4} \, dx

Collect Like Terms

A = \int\limits^a_b {2x - 2x- x^2  + 4} \, dx

A = \int\limits^a_b {- x^2  + 4} \, dx

Integrate

A = [-\frac{x^{3}}{3} +4x](2,-2)

A = [-\frac{2^{3}}{3} +4(2)] - [-\frac{-2^{3}}{3} +4(-2)]

A = [-\frac{8}{3} +8] - [-\frac{-8}{3} -8]

A = [\frac{-8+ 24}{3}] - [\frac{8}{3} -8]

A = [\frac{-8+ 24}{3}] - [\frac{8-24}{3}]

A = [\frac{16}{3}] - [\frac{-16}{3}]

A = [\frac{16}{3}] + [\frac{16}{3}]

A = [\frac{16 + 16}{3}]

A = [\frac{32}{3}]

Hence, the Area is:

A = [\frac{32}{3}]

7 0
4 years ago
I need the answer plzz
daser333 [38]

Answer:

25

Step-by-step explanation:

h hff DJ function schmitz ojos s la plz PC

5 0
3 years ago
Which is the graph of the linear inequality y &lt; 3x + 1?
mestny [16]
Start at +1 on the x axis and then use 3/1 for rise over run. So you will start at +1 and then from that point rise 3 run 1
5 0
3 years ago
A. $24.28<br> B. $30.35<br> C. $20.23 <br> D. $16.19
lakkis [162]

9514 1404 393

Answer:

  c.  $20.23

Step-by-step explanation:

The overhead cost per labor hour is found by dividing overhead costs by labor hours:

  $163,900/(8100 h) = $20.23 /h

The factory overhead rate is $20.23 per labor hour.

4 0
3 years ago
a vase in the shaped of a cube measures 8 inches on each side the vase for is full with water how many cubic inches of water are
san4es73 [151]
This is a volume question. 8x8x8, 512 cubic inches of water.
5 0
3 years ago
Read 2 more answers
Other questions:
  • ABCD is a parallelogram AD=10 units AB=8 units AC= 12 units ED= 4.5 unite what is the permitter of ABCD
    6·1 answer
  • What is 1/15 as a decimal
    7·2 answers
  • End of topic form test form A module 3
    14·1 answer
  • Ann is baking cookies. she bakes three dozen oatmeal raisin cookies, two dozen sugar cookies, and four dozen chocolate chip cook
    10·2 answers
  • 5 8 of 48 is equal to 8 15 of some number. What is this number?
    8·1 answer
  • If 3t - 7 = 5, then 6t=
    14·2 answers
  • Can someone please help me with this question? (no links!!!!)
    9·1 answer
  • Graph this function using intercepts:<br> 5x–3y=30
    5·1 answer
  • Watch help video
    5·1 answer
  • Will give Brainliest (if give me answers) due morning QUICK
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!