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
hichkok12 [17]
3 years ago
11

3.

Mathematics
1 answer:
zhenek [66]3 years ago
5 0

Answer:

A)

Step-by-step explanation:

length = x +x + 2 = 2x + 2

Width = 2+ x

Area of rectangle = length *width

(x +2)(2x + 2) = 110

Use FOIL method

x*2x + x*2 + 2*2x + 2*2 = 110

2x² + <u>2x + 4x</u> + <u>4 - 110</u> = 0   {Combine like terms}

2x² +6x - 106 = 0

a = 2 ; b = 6 ; c = -106

b² - 4ac = 6² - 4*2*(-106)

             = 36 + 848

             = 884

\sqrt{b^{2}-4ac}=\sqrt{884}= 29.73

x =\dfrac{-b+\sqrt{b^{2}-4ac}}{2a} \ ; \ x==\dfrac{-b-\sqrt{b^{2}-4ac}}{2a}\\\\x = \dfrac{-6+29.73}{2*2} \ ; \ x =\dfrac{-6-29.73}{2*2} \ this \ is \  ignored \ as \ it \ is \  negative\\\\x=\dfrac{23.73}{4};

x = 5.93 m

You might be interested in
How many moles are in a sample of 3.01 x 10^18 formula units of sodium hydroxide (NaOH)?
Lunna [17]

Step-by-step explanation:

We can use the formula to find the number of moles. As ,

:\implies n = No. of particles/ N_A

:\implies n = 3.01× 10¹⁸/6.022 × 10²³

:\implies n = 1/2 / 10⁵

<h3>Hence the number of particles is 1/2 / 10⁵ </h3>

4 0
2 years ago
COMMON FACTOR QUESTION❌
Agata [3.3K]
The correct answer is D.
40/8=5 and 48/8=6
5 0
3 years ago
Read 2 more answers
On a cross country bicycle trip participants ride about 75 maybe les per a day. Approximately how many days d mist they ride to
mixer [17]

Answer: 58 Days

Step-by-step explanation:

Because if you divide 4,325 from 75 miles you get 57.6666 and so on so when you round it you get 58 days

6 0
3 years ago
Use the decimals 2.47, 9.57 and 7.1 to write two different addition facts and two different subtraction facts
netineya [11]
2.47 + 7.1
7.1 + 2.47

9.57-7.1
9.57-2.47
6 0
3 years ago
Riddle!<br><br>I'm a factor of five <br>I am between 10 and 20<br>what number am I?<br><br>easy.​
natka813 [3]

Answer:

15 is your number and is a factor of 5 between 10 and 10

6 0
2 years ago
Other questions:
  • What is the value of k in the function ƒ(x) = 112 - kx if ƒ(-3) = 121?
    11·2 answers
  • In a​ triangle, the measure of the first angle is three times the measure of the second angle. The measure of the third angle is
    13·1 answer
  • Find the missing lengths in the triangle, if y = 34.10.
    7·1 answer
  • In general. A clock that is 3 seconds slow but keeps consistent time will be more accurate than a clock that loses 1 second ever
    8·1 answer
  • Write an equation and solve round to the nearest hundredth when necessary 19 is what percent of 40
    6·1 answer
  • Show work! Simplify x 5 6 ⋅ x 1 3
    6·2 answers
  • What is the vertex of the quadratic function f(x) = (x-8)(x - 2)?
    15·1 answer
  • Giving brainless don’t comment if u don’t know I’ll report you.
    13·1 answer
  • Find the radius of a circle if the circumference is 66cm​
    8·2 answers
  • Factorise the following expressions :​
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!