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
Stells [14]
3 years ago
13

Pre algebra help ( will give brainliest ) sorry if it's hard to see

Mathematics
1 answer:
Alina [70]3 years ago
4 0
3.4×10⁻¹⁴ × 1.8×10²⁸

= (3.4 x 1.8) x 10⁽⁻¹⁴⁺²⁸⁾

= 6.12 x 10¹⁴


Answer is A.

Hope it helps!
You might be interested in
What are the solutions to the equation 2(x-3)^2=54 ?
erastova [34]

Answer:

      x =(6-√108)/2=3-3√ 3 = -2.196

 x =(6+√108)/2=3+3√ 3 = 8.196

Step-by-step explanation:

Step  1  :

Equation at the end of step  1  :

2 • (x - 3)2 - 54 = 0

Step  2  :

 2.1    Evaluate :  (x-3)2   =  x2-6x+9 

Step  3  :

Pulling out like terms :

 3.1     Pull out like factors :

   2x2 - 12x - 36  =   2 • (x2 - 6x - 18) 

Adding  9  has completed the left hand side into a perfect square :

   x2-6x+9  =

   (x-3) • (x-3)  =

  (x-3)2  (x-3)1 =

   x-3

Now, applying the Square Root Principle to  Eq. #4.3.1  we get:

   x-3 = √ 27

Add  3  to both sides to obtain:

   x = 3 + √ 27

Since a square root has two values, one positive and the other negative

   x2 - 6x - 18 = 0

   has two solutions:

  x = 3 + √ 27

   or

  x = 3 - √ 27

Solve Quadratic Equation using the Quadratic Formula

 4.4     Solving    x2-6x-18 = 0 by the Quadratic Formula .

 According to the Quadratic Formula,  x  , the solution for   Ax2+Bx+C  = 0  , where  A, B  and  C  are numbers, often called coefficients, is given by :

                                     

            - B  ±  √ B2-4AC

  x =   ————————

                      2A

  In our case,  A   =     1

                      B   =    -6

                      C   =  -18

Accordingly,  B2  -  4AC   =

                     36 - (-72) =

                     108

Applying the quadratic formula :

               6 ± √ 108

   x  =    —————

                    2

Can  √ 108 be simplified ?

Yes!   The prime factorization of  108   is

   2•2•3•3•3 

To be able to remove something from under the radical, there have to be  2  instances of it (because we are taking a square i.e. second root).

√ 108   =  √ 2•2•3•3•3   =2•3•√ 3   =

                ±  6 • √ 3

  √ 3   , rounded to 4 decimal digits, is   1.7321

 So now we are looking at:

           x  =  ( 6 ± 6 •  1.732 ) / 2

Two real solutions:

 x =(6+√108)/2=3+3√ 3 = 8.196

or:

 x =(6-√108)/2=3-3√ 3 = -2.196

7 0
3 years ago
HELPPP PLEASEEEEEEEEE
liubo4ka [24]
Y=4x+7

So 4 is the rate of change because if you solve for y, x is the rate of change
4 0
3 years ago
Read 2 more answers
The current price of each share of a technology company is $135, If this represents a 16.2% increase over last year what was the
Inga [223]
The answer is $116.18. 135 is 116.2% of the previous year.
8 0
3 years ago
Write 2 7/10% as a fraction.
Andre45 [30]

Step-by-step explanation:

Can you please reword your problem

6 0
3 years ago
Read 2 more answers
Find the measure of
adell [148]
I don’t know what the options are but I think it is 95 because 120-25 = 95
5 0
2 years ago
Other questions:
  • Complete the statement with the best answer.
    6·2 answers
  • Find the new amount. 50 points decreased by 26% is points.
    7·2 answers
  • What is 25% of 24 squares
    14·2 answers
  • What is the first step in solving a quadratic equation with the form given below (ax+b)^2=c
    13·2 answers
  • All decimals can also be represented on a​
    9·2 answers
  • A group of 10 people is choose a chairperson and vice-chairperson. They put all 10 peoples names into a bar. The first name draw
    12·1 answer
  • Mason opens a savings account by making a $165.85 deposit. Every week, he deposits another $20.50 in the account. Write an expre
    13·2 answers
  • cheryl says that when you add two negative numbers, the sum is always negative. is Cheryl's statement true of false?
    11·2 answers
  • If
    10·2 answers
  • Chris swims every day at the gym. She can
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!