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
Maurinko [17]
3 years ago
6

A rectangular deck

Mathematics
2 answers:
nalin [4]3 years ago
8 0
Original length: 14 ft. New length x + 14.
Original width: 12 ft. New width x + 12.

New area:

A = LW  or LW = A

(x + 14)(x + 12) = 280

x^2 + 14x + 12x + 168 = 280

x^2 + 26x - 112 = 0

x = \dfrac{-b \pm \sqrt{b^2 - 4ac}}{2a}

x = \dfrac{-26 \pm \sqrt{26^2 - 4(1)(-112)}}{2(1)}

x = \dfrac{-26 \pm \sqrt{676 + 448}}{2}

x = \dfrac{-26 \pm \sqrt{1124}}{2}

x = \dfrac{-26 \pm 2\sqrt{281}}{2}

x = -13 \pm \sqrt{281}

x \approx -29.76   or   x \approx 3.76

We discard the negative answer.

Answer:

Exact:
(-13 + \sqrt{281})~ ft

Approximate:
3.76 ~ft
denpristay [2]3 years ago
4 0
Both dimensions were increased by 127.

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

You might be interested in
My sister asks you guys for help once more!<br> What is the value of 7/10 - 3/6?
nirvana33 [79]

Answer:

Part 1: 10, Part 2: 6

Step-by-step explanation:

8 0
2 years ago
Read 2 more answers
You decide to get an estimate on the cost of repairs for the green food truck. The mechanic explains that the cost of the repair
I am Lyosha [343]

Answer:

you save labor : 3562.50

Step-by-step explanation:

You want to calculate for labor.

labor = 3/5 (parts)

labor + parts = $9500 (total costs)

3/5 parts + parts =9500

3/5 parts + 5/5 parts = 9500

8/5 parts=9500

5/8(8/5 parts) = 5/8 (9500)

‘parts = 5937.50

labor=3562.50 (3/5 x 5937.50)

total = 9500

7 0
3 years ago
A teacher tells 6 students the title of the next school play. Those 6 students each tell the title to 6 students. Then those add
Sergio [31]
18 students have been told the title of the next play because 6+6+6=18
3 0
2 years ago
Multiply both sides of the equation by 6.<br> {(4a + 1) = 2a<br> ? (4a + 1) = ?<br> a
solniwko [45]

Answer:

24a+6=12a

Step-by-step explanation:

6(4a+1)

24a+6

2a X 6= 12a

24a+6=12a

6 0
2 years ago
Which of the following represents the area of a rectangle with a length of (3x + 2)
Misha Larkins [42]

Answer:

WANNA HEAR SOME METAL

Step-by-step explanation:

WANNA HEAR ME ROAAAAAAAAAAAAAAAAAR

6 0
2 years ago
Other questions:
  • There are 18 students involved in the class production of Arsenic and Old Lace. a) In how many ways can the teacher cast the pla
    9·1 answer
  • While going to the mountain, John approximated the angle of the elevation to the top of the hill to be 25 degrees. After walking
    13·1 answer
  • The width of a rectangular box is 8in. The height is one fifth the length x. The volume is 640 in^3 (inches cubed). What is the
    15·1 answer
  • The International Air Transport Association surveys business travelers to develop quality ratings for transatlantic gateway airp
    13·1 answer
  • A single card is drawn from a standard 52 card deck.
    12·2 answers
  • Please help me i'll give 15 points
    14·1 answer
  • WHO EVER ANSWERS FIRST I WILL GIVE THE CROWN-
    11·1 answer
  • A football team lost 4 yards on each of 2 plays, gained 14 yards on the third play, and lost 5 yards on the fourth play. Write a
    10·1 answer
  • You are flying a kite and have let out 30 feet of string but it got caught in an 8ft tree. What is the angle of elevation to the
    15·1 answer
  • HELP<br> ASAP<br> 35 POINTS
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!