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
sashaice [31]
3 years ago
12

A number is written in scientific notation.

Mathematics
1 answer:
V125BC [204]3 years ago
8 0
If it’s 2.089 x 10^5 then the answer’s (c): 208,900
You might be interested in
Find the perimeter of a field that has length 2/x + 1 and width 5/x^2 -1.
Semmy [17]

Answer:

D)4x + 6/(x + 1)(x - 1)

Step-by-step explanation:

A field is basically a rectangle, so to find the perimeter of our field we are using the formula for the perimeter of a rectangle

p=2(l+w)

where

p is the perimeter

l is the length

w is the width

We know from our problem that the field has length 2/x + 1 and width 5/x^2 -1, so l=\frac{2}{x+1} and w=\frac{5}{x^2-1}.

Replacing values:

p=2(l+w)

p=2(\frac{2}{x+1} +\frac{5}{x^2-1})

Notice that the denominator of the second fraction is a difference of squares, so we can factor it using the formula a^2-b^2=(a+b)(a-b) where a is the first term and b is the second term. We can infer that a=x^2 and b=1^2. So, x^2-1=(x+1)(x-1). Replacing that:

p=2(\frac{2}{x+1} +\frac{5}{x^2-1})

p=2(\frac{2}{x+1} +\frac{5}{(x+1)(x-1})

We can see that the common denominator of our fractions is (x+1)(x-1). Now we can simplify our fraction using the common denominator:

p=2(\frac{2(x-1)+5}{(x+1)(x-1)} )

p=2(\frac{2x-2+5}{(x+1)(x-1)} )

p=2(\frac{2x+3}{(x+1)(x-1)} )

p=\frac{4x+6}{(x+1)(x-1)}

We can conclude that the perimeter of the field is D)4x + 6/(x + 1)(x - 1).

3 0
3 years ago
What is the effect if two parallel lines are rotated 90 clockwise
Olin [163]
They will be perpendicular to their pre image


good luck
6 0
3 years ago
60 = −2(−10 − 4x)<br> what is the answer show step by step
Papessa [141]
That’s the answer with steps

8 0
3 years ago
Read 2 more answers
Determine how much money you will have after 8 years if you invest 4,000$ at 7% compounded monthly
Solnce55 [7]
You would get $26,880.
0.07*4000= 280; so $280 are added every month
There are 96 months in 8 years, so multiply 280*96 which =26,880
7 0
3 years ago
Tiles
Inessa [10]

Answer:

1. 5x -2

2. 5x + 2

3. -5x -2

4. -5x + 2

7 0
3 years ago
Other questions:
  • You make $1 per quart picking strawberries. Do the ordered pairs (number of quarts, earnings) represent a function? Explain your
    9·1 answer
  • Tamir gets paid $12 for every day he feeds and walks his neighbor's dog. Write an equation that would represent the relationship
    11·2 answers
  • How to answer it i also need the answers
    12·1 answer
  • Can you write a summation notation of a series that is neither arithmetic nor geometric?
    12·1 answer
  • PLEASE I NEED HELP URGENT I Will MARKE YOU BRAIN LIST​
    6·1 answer
  • Triangles ABC and DFG
    15·1 answer
  • Help pls i need help asap 15 points​
    12·1 answer
  • Answer plzzz!!!!!!!!!!!
    8·1 answer
  • 4.A system of equations is shown below. Find the solution by using substitution. y = 3x + 6 y = x + 2 O (0,2) 0 (0,-2) O (2,0) O
    7·1 answer
  • Question 3 of
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!