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
anzhelika [568]
3 years ago
11

Is the number written in scientific notation? If not, explain.

Mathematics
1 answer:
PilotLPTM [1.2K]3 years ago
3 0
Scientific\ notation:\ a\cdot10^n\ where\ 1\leq a \ \textless \  10\ and\ n\in\mathbb{Z}\\\\a.\ 0.15\cdot10^4-NOT,\ because\ 0.15 \ \textless \  1.\ Correct\ is\ 1.5\cdot10^3\\\\b.\ 7.06\cdot10^{-8}-YES\\\\c.\ 3.3\cdot100^1-NOT,\ because\ is\ 100,\ not\ 10.\ Correct\ is\ 3.3\cdot10^2
You might be interested in
Tickets for the baseball games were $2.50 for general admission and 50 cents for kids. If there were six times as many general a
Makovka662 [10]
There was 3000 general admission tickets sold and 500 kid ticket sold.

How did I get this?

First, we need to see what information we have.
$2.50 = General admission tickets = (G)
 $0.50 = kids tickets =  (K)
There were 6x as many general admission tickets sold as kids. G = 6K

We need two equations:
G = 6K  
$2.50G + $.50K = $7750
Since, G = 6K we can substitute that into the 2nd equation.

2.50(6K) + .50K = 7750
Distribute 2.50 into the parenthesis

15K + .50K = 7750
combine like terms

15.50K = 7750
Divide both sides by 15.50, the left side will cancel out.

K = 7750/15.50
K = 500 tickets
So, 500 kid tickets were sold.

Plug K into our first equation (G = 6k)

G = 6*500
G = 3000 tickets

So, 3000 general admission tickets were sold,

Let's check this:

$2.50(3000 tickets) = $7500 (cost of general admission tickets)
$.50(500 tickets) = $250 (cost of general admission tickets)
$7500 + $250 = $7750 (total cost of tickets)




4 0
3 years ago
Does square root of 162 = square root of 81 and square root of 81 added
madam [21]
No.
.. √162 = (√2)*(√81)
.. √81 +√81 = 2√81 = √324

Square root is a non-linear function. sqrt(a +b) ≠ sqrt(a) +sqrt(b)
5 0
3 years ago
On Sunday a library checked out 52books .if 24 of the books were fiction what is the ratio of non fiction books to fiction books
lana66690 [7]

Answer:

Ratio of Non Fiction : Fiction books = 7 : 6

Step-by-step explanation:

Total number of books checked out =  52

Number of fiction books checked out = 24

So, number of non fiction books =  Total books -  number of fiction books

Or, number of non fiction = 52 - 24   =  28  books

Now, ratio of Non Fiction : Fiction books = 28 : 24

Solving the ratio term in its lowest form, we get

The Ratio of Non Fiction : Fiction books = 7  : 6  

7 0
3 years ago
How to simplify tan(x)/ cos(x)-sec(x)
Artemon [7]
<span> tan(x)/ cos(x)-sec(x)
tanx/(cosx-1/cosx)
tanx/cos^2x-1)--------------------1-sin^2x=cos^2x
-tanx/sin^2x
-(sinx/cosx)/sin^2x
-1/sinxcosx
multiply 2/2
-2/2sinxcosx-------------sin2x=2sincosx
-2/sin2x------------------1/sinx=cosecx
-2cosec2x</span>
7 0
3 years ago
One day, eleven babies are born at a hospital. Assuming each baby has an equal chance of being a boy or girl, what is the probab
Andrews [41]
You only need to consider the situations where 10 or 11 of the babies are girls, then subtract those probabilities from 1.  This will give probability that any other number up to 9 of the babies are girls.

Use binomial theorem.
P(x=k) = (nCk) p^k (1-p)^{n-k}

n = 11
k = 10,11
p = 1/2

P(x=10) = 11 (\frac{1}{2})^{11} = \frac{11}{2048} \\  \\ P(x=11) = 1(\frac{1}{2})^{11} = \frac{1}{2048} \\  \\ P(x \leq 9) = 1 - \frac{11}{2048} - \frac{1}{2048} \\  \\ P(x \leq 9)=\frac{2036}{2048} = \frac{509}{512}
4 0
3 years ago
Other questions:
  • Please help! I’ll really appreciate it!
    10·1 answer
  • The lengths of two sides of the isosceles triangle are the ratio of 6:5. The perimeter of the triangle is 32cm. What is the area
    10·1 answer
  • What is bigger, 6 kilometers or 600 centimeters.
    12·1 answer
  • Can someone help me please? What is 6 times 6 plus 9 divided by 10 in the second power?
    12·1 answer
  • Van bought a 16 pound bag of dog food his dog ate 2/3 of the food how many pounds of dog food did the dog eat
    15·1 answer
  • Please im in a rush ill give brainiltiest
    15·1 answer
  • The following is an example of what type of sequence? 3, 11, 19, 27, 35…
    13·1 answer
  • You start at (-1, 4). You move left 4 units and down 3 units. Where do you end?
    10·2 answers
  • Find the y-intercept of the line on the graph.<br> Enter the correct answer.
    12·1 answer
  • Write and solve an equation to find x. Then find the measure of angle YXZ.
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!