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
densk [106]
3 years ago
7

Solve using quadratic equations

Mathematics
1 answer:
olasank [31]3 years ago
7 0
4x² - 9x² + 5 = 0
4x² - 4x - 5x + 5 = 0
4x(x - 1) - 5(x - 1) = 0
(4x - 5)(x - 1) = 0

Set each binomial equal to zero. 

4x - 5 = 0
4x = 0 + 5
4x = 5
x = 5/4

x - 1 = 0
x = 0 + 1
x = 1

Your solutions are x = 1, 5/4
You might be interested in
Can you factor the common factor out of this problem? 28b+14b^2+35b^3+7b^5
Ann [662]
This is the correct answer

7 0
3 years ago
Bob wants to leave a 12% tip for his meal. if the meal cost 36.55, how much is the bill including the tip? ​
LenKa [72]

Answer:

$40.94

Step-by-step explanation:

the tip is $4.39

total is $40.94

5 0
2 years ago
Read 2 more answers
PLEASE HELP ME:<br><br> Find the perimeter of the figure. Round to the nearest tenth.
Ksenya-84 [330]

Answer:

perimeter = 20.9 units

Step-by-step explanation:

perimeter

perimeter = distance around two dimensional shape

= addition of all sides lengths

<h2>perimeter of the figure</h2><h2>= AB+BC+CD+AD</h2>

distance formula:

d =  \sqrt{(  x_{2} -  x_{1})  {}^{2}   + ( y_{2} -  y_{1}) {}^{2}  }

<h3>1) distance of AB</h3>

A(-3,0) B(2,4)

x1 = -3 x2 = 2

y1 = 0 y2 = 4

(substitute the values into the distance formula)

ab =  \sqrt{(2 - ( - 3)) {}^{2}  + (4 - 0) {}^{2} }

ab =  \sqrt{5 {}^{2} + 4 {}^{2}  }

ab =  \sqrt{41}AB = 6.4 units

<h3>2) distance of BC</h3>

B(2,4) C(3,1)

x1 = 2 x2 = 3

y1 = 4 y2 = 1

bc =  \sqrt{(3 - 2) {}^{2}  + (1 - 4) {}^{2} }

bc = \sqrt{1 {}^{2} + ( - 3) {}^{2}  }

bc =  \sqrt{10}

BC = 3.2 units

<h3>3) distance of CD</h3>

C(3,1) D(-4,-3)

x1 = 3 x2 = -4

y1 = 1 y2 = -3

cd =  \sqrt{( - 4 - 3) {}^{2}  + ( - 3 - 1)) {}^{2} }

cd =  \sqrt{( -   7) {}^{2}  + ( - 4 ){}^{2} }

cd =   \sqrt{65}

CD = 8.1 units

<h3>4) distance of AD</h3>

A(-3,0) D(-4,-3)

x1 = -3 x2 = -4

y1 = 0 y2 = -3

ad =  \sqrt{(  - 4 - ( - 3)) {}^{2}  +  ( - 3 - 0) {}^{2} }

ad =  \sqrt{( - 1) {}^{2} + ( - 3) {}^{2}  }

ad =  \sqrt{10}

AD = 3.2 units

<h2>perimeter of figure</h2>

= AB+BC+CD+AD

= 6.4 + 3.2 + 8.1 + 3.2

= 20.9 units

8 0
3 years ago
5y2 + y + 2y2 – 7y - 5y2 + 4x<br> How to simplify
Damm [24]
Combine like terms to get 2y2-2y+4x
3 0
2 years ago
On Saturday morning Briana and her friends walked 1.35 miles. What is the distance as a decimal
padilas [110]

Answer:

1.35 miles is the distance walked in decimal form

Step-by-step explanation:

1 (decimal) 35

3 0
2 years ago
Other questions:
  • Whats m(x) = 1 over 3x +2
    8·1 answer
  • A news report says that 28%28% of high school students pack their lunch. Your high school has 600600 students. How many students
    14·1 answer
  • can someone help me i forgot the theroms and stuff for proving triangles are congruent can someone explain them to me
    10·1 answer
  • What is (-25) - 55 =
    14·1 answer
  • 60 PTSA grocery store finds that the number of boxes of a new cereal sold increases each week. In the 1st week, 26 boxes of the
    12·1 answer
  • For the following quadratic equation, find the discriminant.
    12·1 answer
  • 1. What is the GCF of 42 and 66?
    6·2 answers
  • A number has the digits 6, 2, 9 to the nearest 100, the number rounds to 600 what is the number
    11·1 answer
  • The sides of a triangle are 3 consecutive odd integers and the shortest side is 20% of the perimeter of the triangle. What is th
    13·1 answer
  • A hotel has $4,695 to buy new pillows. If the cost of each pillow is $5, how many pillows will the hotel be able to buy?
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!