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
emmasim [6.3K]
3 years ago
9

100x^2-4=0 quick pls with all work

Mathematics
2 answers:
Alik [6]3 years ago
8 0

Answer:

solving 100x^2-4=0 we get x=\frac{-1}{5}\:,\:x=\frac{1}{5}

Step-by-step explanation:

We need to solve 100x^2-4=0

We know that 10^2=100 \: and\: 2^2=4

Replacing with the squares

100x^2-4=0\\(10x)^2-(2)^2=0

We can use the formula: a^2-b^2=(a+b)(a-b)

Applying formula

(10x+2)(10x-2)=0\\10x+2=0\:,\:10x-2=0\\10x=-2\:,\:10x=2\\x=-2/10\:,\:x=2/10\\x=\frac{-1}{5}\:,\:x=\frac{1}{5}

So, solving 100x^2-4=0 we get x=\frac{-1}{5}\:,\:x=\frac{1}{5}

Finger [1]3 years ago
4 0
4(5x+1)(5x-1) = 0

1. Take out the GCF (in this case, 4)
4(25x^2-1) = 0

2. This can be further factored. Factor the values within the parenthesis
4(5x + 1)(5x -1) = 0

You might be interested in
Pretest: Unit 8
Stella [2.4K]

B. The square root function is the quadratic function reflected across

the line y = x, with a limited domain.

graph y=x^2 and y=√x and y=x

graph is attached

gathmath

7 0
2 years ago
Cierra paid $375 for a chair. The price of the chair Mary purchased was 1/5 the price Cierra paid. How much did Mary pay for her
svetoff [14.1K]

Answer:

$1,875

Step-by-step explanation:

since the price Cierra paid was 1/5. the full price is 5 times the price she paid, so

$375 * 5 = $1,875

3 0
3 years ago
<img src="https://tex.z-dn.net/?f=3x%5E%7B2%7D%20-5x-4%3D0" id="TexFormula1" title="3x^{2} -5x-4=0" alt="3x^{2} -5x-4=0" align="
WINSTONCH [101]

Answer:

See below

Step-by-step explanation:

Quadratic formula :

 x =  [-b ±  sqrt ( b^2 - 4ac) ] / 2a  

    for this problem   a = 3    b= - 5    c = - 4

substitute in the values and compute:

<u>    x= 5/6  ±  sqrt (73)/6 </u>

8 0
3 years ago
Evaluate 4|-2| - |-3|
goldenfox [79]
|-2| = 2
|-3| = 3
so,
4x2-3=5
3 0
3 years ago
Part A: What is the group of points labeled P called? What is the point labeled T called? Give a possible reason for the presen
levacccp [35]
Labeled p is cluster point t is an outlier
7 0
3 years ago
Other questions:
  • Aidan's age is 6 years less than half of maggie's age. aidan's age is 4 years. what is maggie's age?
    12·2 answers
  • If the perimeter of the room is 78 feet find w the width of the room
    13·1 answer
  • Writ each fraction as a decimal 4/9 8/15 and -11/12
    11·2 answers
  • What is the length of AC¯¯¯¯¯ ?<br><br><br><br><br><br> Enter your answer in the box.
    13·1 answer
  • The perimeter of a rectangle is 58m if its length is 17m find its breadth​<br>pls help its urgent
    8·1 answer
  • The gallons of gasoline used varies directly with the number of miles driven. If 15 gallons cost $30, what is the cost of 7.5 ga
    6·1 answer
  • If the diameter of the semicircle is 6 in fid the area in terms of pi?
    5·1 answer
  • Someone help plz plz plz plz
    10·2 answers
  • Sarah earns $7.50 per hour babysitting and $5.00 per hour walking dogs. Last week she worked h hours babysitting and twice as ma
    9·2 answers
  • PLS HELP RN ASAP!!!!
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!