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
tatuchka [14]
3 years ago
13

Which equation is equivalent to

Mathematics
2 answers:
jeka57 [31]3 years ago
8 0

Answer:

The answer is option 2.

Step-by-step explanation:

In the question, 16 and 81 are perfect squares. So in order to find the equivalent equation, you have to factorize it :

APPLY,

(a + b)(a - b) =  {a}^{2}  -  {b}^{2}

So for this question :

16 {x}^{4}  - 81 = 0

{(4 {x}^{2})}^{2} - {(9)}^{2}= 0

(4 {x}^{2}   +  9)(4 {x}^{2}  - 9) = 0

Aleksandr [31]3 years ago
5 0

Answer:

(4x^2 +9)(4x^2-9) =0

Step-by-step explanation:

16x^4 - 18 = 0

Rewriting

(4x^2)^2 - 9^2 =0

We notice that this is the difference of squares

a^2 - b^2 = (a-b)(a+b)

(4x^2 -9)(4x^2+9) =0

You might be interested in
Someone help me with this ?
musickatia [10]
\dfrac a 2 = \dfrac b 3

\dfrac 3 2 = \dfrac b a

Final answer: \qquad \dfrac 3 2
5 0
2 years ago
The first and second year’s sales for a company were $328,000 and $565,000. The expenses for the first year were $117,000. The c
Serhud [2]
As a disclaimer, I can't say I'm completely confident in this answer. Use at own risk.

Formulas:

Year 1: 328,000 (sales) - 117,000 (expense) = 211,000 (profit)

Year 2: 565,000 (sales) - x (expense) = y (profit)

Net Profit: 211,000 + y = 113,000

Math

211,000 (profit y1) + 565,000 (sales y2) = 776,000

776,000 - 113,000 (net profit) = -663,000 (expenses)

Confirm:

Net Profit: 211,000 + y = 113,000 (listed in formulas, just a reminder)

Plug in: 565,000 (y2 sales) - 663,000 (our solution) = -98,000

211,000 (y1 net) + -98,000 (our plug in) = 113,000 (2 year net profit given to us)
6 0
3 years ago
HELP THIS IS DUE SOON!<br><br> find the error!
Rudik [331]

Answer:

Step 1

Step-by-step explanation:

they were supposed to multiply 2x by 4 and -1 by 4 but they only multiplied 2x by 4.

3 0
2 years ago
Read 2 more answers
A muffin recipe calls for 2/5 tablespoons of vanilla extract for 6 muffins. Arthur is making 18 muffins. How much vanilla extrac
GuDViN [60]
2/5 tablespoons of vanilla extract ... 6 muffins
x tablespoons of vanilla extract = ? ... 18 muffins

If you would like to know how much vanilla extract does he need, you can calculate this using the following steps:

x * 6 = 18 * 2/5
x * 6 = 36/5    /6
x = 36/5 / 6
x = 6/5 = 1 1/5

Result: Arthur will need 1 1/5 tablespoons of vanilla extract for 18 muffins.
7 0
3 years ago
Label the following parts of the expression below using the words in the word box.
melamori03 [73]

Answer:

5y, coefficient : 9x^3, exponent : 9, variable

Step-by-step explanation:

3 0
3 years ago
Other questions:
  • -2(x - 8) + 4x = -12
    13·1 answer
  • at the cafe, Rebecca can choose to earn $10 per hour plus a $60 starting bonus or earn $12 per hour with no starting bonus. afte
    15·1 answer
  • 5. For each quantity, decide whether circumference or area would be needed to calculate it. Explain or show your reasoning.
    14·1 answer
  • A gallon of gasoline at the local gas station
    14·2 answers
  • If the expression x-3 has a value of -5, then what is the value of 3x-9
    11·2 answers
  • in a survey four out of seven people named blue as their favorite color. One out of three named red.If 1,092 people were include
    9·1 answer
  • HELP ASAP Four times the quotient of 3 and 4.
    8·1 answer
  • The number of geese at a city park in the year 2015 was 132. The population is declining by 3 geese every two years. The populat
    14·1 answer
  • What is another way to write x2.x4?
    6·1 answer
  • Can anyone solve this x + 2 ( x + 2 + ( 2 x − 8 ) ) = x + 1 + ( 2 x − 5 ) x + 2 ( x + 2 + ( 2 x - 8 ) ) = x + 1 + ( 2 x - 5 )
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!